Answer:
no you are definetly not allowed
Step-by-step explanation:
because if you dont have a brain you are certainly not educated
Answer:
What type of question is that?
Brainly is a platform where students and other educators gain knowledge while distributing old knowledge to people who need it. If you don't have a brain then I don't know what to tell you but get some help.
write a faction where is the numerator and denominator are both greater than 9. 10 write the fraction in simplest form
Answer:
10/20=1/2
Step-by-step explanation:
What are the answers?
Answer:
あなたがこれを翻訳するなら私はあなたを愛しています
Step-by-step explanation:
私は英語がわかりませんが、答えは4倍になります
The table below represents Gerry's trip to school and back home. If the total time is 45 minutes, how far does Gerry live from school?
Chose the best equation to solve for x
Answer:
1) x/8+ x/16= 3/4 2) 4 miles
Step-by-step explanation:
The table is an illustration of distance, rates (speed) and time.
The best equation to solve for x is: [tex]\frac x8 + \frac x{16} = \frac 34[/tex].Gerry lives 4 miles from schoolFrom the question, we have:
[tex]t =45\ mins[/tex] --- total time spent
Convert to hours
[tex]t =\frac{45}{60}hr[/tex]
Reduce fraction
[tex]t =\frac{3}{4}hr[/tex]
The times spent to school and back home are given as:
[tex]t_1 = \frac x8[/tex]
[tex]t_2 = \frac x{16}[/tex]
So, we have:
[tex]t_1 + t_2 = t[/tex]
This gives:
[tex]\frac x8 + \frac x{16} = \frac 34[/tex]
Hence, the equation that can be used to solve for x is: [tex]\frac x8 + \frac x{16} = \frac 34[/tex]
Take LCM
[tex]\frac{2x + x}{16} = \frac 34[/tex]
[tex]\frac{3x}{16} = \frac 34[/tex]
Multiply through by 16
[tex]\frac{3x}{16}\times 16 = \frac 34 \times 16[/tex]
[tex]3x = 12[/tex]
Divide both sides by 3
[tex]x = 4[/tex]
The distance to school and back home are given as:
[tex]d_1 = d_2 = x[/tex]
So, we have:
[tex]d_1 = d_2 = 4[/tex]
This means that Gerry lives 4 miles from school
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Suppose you first want to eliminate the fraction in 4n=1/2(2n-12). What would your first step be? Is -2 still the solution when you start by eliminating the fraction first? Explain
Answer:
Step-by-step explanation:
Recognize that the (1/2) in 4n=1/2(2n-12) is a coefficient, the coefficient of the (2n - 12) term.
Thus, multiply both sides of this equation 4n=1/2(2n-12) by 2, to obtain:
8n = 2n - 12
Combining like terms, we get 6n = -12, so that n = -2.
Multiplying both sides of the equation by a constant does not in any way affect your ability to find a solution and does not change the solution.
1A research firm finds that the average number of customers that are in Somerset Mall on a
Saturday varies sinusoidally with time. The mall is open from 9:00 am to 9:00 pm; the minimum
number of customers is at 9:00 am and 9:00 pm when there are zero customers. The maximum
number of customers is at 3:00 pm when there are 875 customers in the mall,
Answer: C(t) = -475.5*cos(t*pi/6) + 475.5
Step-by-step explanation:
We know that we have a sinusoidal relation, with a minimum at 9:00 am and at 9:00 pm.
If we define the 9:00 am as our t = 0, we have that the maximum, at 3:00pm, is at t = 6 hours.
and the other minimum, at 9:00pm, is at t = 12 hours.
Then we need to find a trigonometric function that has the minimum at t = 0, we can do this as:
-Cos(c*t)
when t = 0
-cos(0) = - 1
then we have a function:
C(t) = -A*cos(c*t) + B
where A, c and B are constants.
We know that at t = 0 we have 0 customers, and that at t = 6h we have 875 customers, that is the maximum.
then:
C(0) = 0 = -A + B
this means that A = B, then our function is:
C(0) = -A*cos(c*t) + A.
now, at t = 6h we have a maximum, this means that -A*cos(c*6h) = A
then:
C(6h) = A + A = 875
2A = 875
A = 875/2 = 437.5
and we also have that, if -cos(c*6) = 1
then cos(c*6) = -1
and we know that cos(pi) = -1
then c*6 = pi
c = pi/6
Then our function is
C(t) = -475.5*cos(t*pi/6) + 475.5
Final answer:
On average, one customer arrives every two minutes at Somerset Mall on a Saturday, which means it takes six minutes on average for three customers to arrive. This question applies trigonometry, algebra, and statistical concepts.
Explanation:
A research firm finds that the average number of customers in Somerset Mall on a Saturday varies sinusoidally with time. The question involves understanding sinusoidal functions, their applications, and basic statistical concepts related to customer arrival rates. The sinusoidal nature of customer arrivals is a practical application of trigonometry and algebra in solving real-world problems.
Part a: Average Minutes Between Arrivals
Given that 30 customers arrive per hour, to find the average time between successive arrivals, we divide the number of minutes in an hour by the number of arrivals: 60 minutes / 30 customers = 2 minutes. Therefore, on average, one customer arrives every two minutes.
Part b: Time for Three Customers to Arrive
Since one customer arrives every two minutes on average, for three customers to arrive, it would take 3 * 2 minutes = 6 minutes on average.
The model's assumption that customers arrive one at a time and at a constant rate throughout the day simplifies the real-life complexity of customer behavior and peak shopping times. This is a critical consideration in the practical application of mathematical models in business.
Becker and Kayla are members of the school chess team. They record the number of games they each play for 10 days. The data are shown. Becker: 5,2,4,1,1,4,5,3,2,1 Kayla: 2,3,1,1,4,1,5,3,5,5 Based on the data, which estimate represents the mean number of games chess team members play per day?
Answer:
2.9
Step-by-step explanation:
The mean is the average of the date It is surprisingly easy to calculate: add up all the data, then divide by how many data points there are.
Becker's data added up is 28. Kayla's data added up is 30. The total amount is 58.
The amount of data points are 20.
58/20 = 2.9
Hope this helps!
The mean number of games chess team members play per day is 2.9
How to find mean of the dataBecker = 5,2,4,1,1,4,5,3,2,1
= (5 + 2 + 4 + 1 + 1 + 4 + 5 + 3 + 2 + 1) / 10
Mean average = 28 / 10
= 2.8
Kayla = 2,3,1,1,4,1,5,3,5,5
= (2 + 3 + 1 + 1 + 4 + 1 + 5 + 3 + 5 + 5) / 10
= 30 / 10
= 3
Total = Becker + Kayla
= 2.8 + 3
= 5.8
Mean average = 5.8 / 2
= 2.9
Therefore, the mean number of games chess team members play per day is 2.9
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How will a high outlier in a data set affect the mean and median?
O A. distribution skewed to the right, mean not effected, median skewed to the right
O B. distribution skewed to the right, mean pulled to the right, median not effected
O C. distribution skewed to the right, mean not effected, median not effected
OD. distribution skewed to the left, mean pulled to the left, median not effected
Answer:
B. distribution skewed to the right, mean pulled to the right, median not effected
Step-by-step explanation:
When a distribution is skewed to the right, it means that the data is positively skewed or has more positive numbers than negative numbers.
An outlier can affect the mean of a distribution since a high value outlier will make the mean be much higher than the median. In this case, since the distribution is positively skewed, a high outlier will pull the mean to the right (to higher positive values).
The high outlier in a data set affects the mean and median is
B. distribution skewed to the right, mean pulled to the right, median not effected
The reason why will a high outlier in a data set affect the mean and median?At the time When a distribution is skewed to the right, so it represents the data is positively skewed or it contains more positive numbers as compared to the negative numbers. An outlier can impact the mean of the distribution.
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Which expression is equivalent to |a|≤3 ?
1. a ≤ –3 or a ≥ 3
2. a ≥ –3 and a ≤ 3
3. a ≥ –3 or a ≤ 3
4. a ≤ –3 and a ≥ 3
=====================================================
Explanation:
The rule is that if [tex]|a| \le k[/tex] for some positive number k, then it can be written as the compound inequality [tex]-k \le a \le k[/tex]. This is a shorthand way of writing the two inequalities [tex]a \ge -k \ \text{ and } \ a \le k[/tex] combined together.
note: [tex]-k \le a[/tex] is the same as [tex]a \ge -k[/tex]
From here, we replace k with 3
Therefore, [tex]|a| \le 3[/tex] turns into [tex]-3 \le a \le 3[/tex] which breaks down further to [tex]a \ge -3 \ \text{ and } \ a \le 3[/tex]
The keyword "and" is important as we can't pick one or the other. We must pick both [tex]a \ge -3[/tex] and also [tex]a \le 3[/tex]
Answer:
Choice 2.
Step-by-step explanation:
Pythagorean theorem:
Is a triangle with the following side lengths a right triangle? Why?
a = 8
b = 15
c = 17
Example:
This does/does not make a right triangle because...
Answer:
This does make a right triangle
Step-by-step explanation:
Because when you square 8 you get 64 and when you square 15 you get 225. Then you add those together and you should get 289 so when you find the square root of 289 is 17 which makes those number true
Yes, a triangle with side lengths a = 8, b = 15, and c = 17 is a right triangle.
What is the Pythagorean theorem?Pythagorean theorem states that for a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
We can apply this theorem only in a right triangle.
Example:
The hypotenuse side of a triangle with the two sides as 4 cm and 3 cm.
Hypotenuse side = √(4² + 3²) = √(16 + 9) = √25 = 5 cm
We have,
Yes, a triangle with side lengths a = 8, b = 15, and c = 17 is a right triangle. This is because these side lengths satisfy the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
In this case, we have:
a² + b² = 8² + 15² = 64 + 225 = 289
c² = 17² = 289
Since a² + b² = c², these side lengths satisfy the Pythagorean theorem, and the triangle is a right triangle.
Thus,
Yes, a triangle with side lengths a = 8, b = 15, and c = 17 is a right triangle.
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What is the third quartile of the box-and-whisker plot?
A)
10)
B)
20
C)
25
D)
30
Answer:
D) 30
Step-by-step explanation:
The third quartile is the last line of the box
Hope this helps!
A box and whisker plot is a graphical representation of variance. The third quartile of the box-and-whisker plot is 30.
What is a box-and-whisker plot?A box and whisker plot is a graphical representation of variance in a set of data.
The third quartile of the box-and-whisker plot is the rightmost line of the box, which means the third quartile of the box-and-whisker plot is 30.
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Martin is using unit cubes to build a tower in the shape of a rectangular prism. A decripion of the tower is listed the bottom layer is made of 16 unit cubes. the bottom layer shape is in the shape of a square prism. 9 more equal layers of unit cubes are added on the top of the bottom layer. what is the total volume in cubic units of the completed tower
Answer:
Volume of the completes tower = 160 units³
Step-by-step explanation:
Martin is using unit cubes to build a tower in the shape of rectangular prism.
Bottom layer of the prism is in the square shape.
Since number of unit cubes used in the bottom layer = 16
So, one side of the square base will measure = √16 = 4 units
Therefore, Length = width = 4 units
On this base, additional layers added on the top = 9
Therefore, height of the tower = (9 + 1) = 10 units (each layer having 16 cubes)
Volume of the tower = Volume of the rectangular prism
= Length × width × height
= 4×4×10
= 160 cubic units.
Volume of the completed tower will be 160 cubic units.
The total volume in cubic units of the completed tower is 160 units³.
Calculation of the total volume;Since number of unit cubes used in the bottom layer = 16
So, one side of the square base should be
= √16 = 4 units
Now
Length = width = 4 units
The additional layers added on the top = 9
So, height of the tower = (9 + 1)
= 10 units
Now
Volume of the tower = Volume of the rectangular prism
= Length × width × height
= 4×4×10
= 160 cubic units.
hence, The total volume in cubic units of the completed tower is 160 units³.
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I really don’t get this how do I do this:(?
Answer:
You are drawing a right triangle. So draw the two lines off of the right angle. Then write 5 along one line. That line is now BC, so you can start naming points and putting in lengths. Then, draw the hypotenuse (AB) going from the end of the line you were writing next to, to the other line. Make sure it is at least twice as long, because it is 13 long. Then, to find the length of the last line, square 13, and subtract 25 from it. Take that number and find it's square root. You should get 12, which is your answer.
Step-by-step explanation:
A coordinate grid with 2 lines. The first line is labeled y equals negative StartFraction 7 over 4 EndFraction x plus StartFraction 5 over 2 EndFraction and passes through the (0, 2.5) and (2.2, negative 1.4). The second line is labeled y equals StartFraction 3 over 4 EndFraction x minus 3 and passes through (0, negative 3, 0.14) and (2.2, negative 1.4)
Which is the best approximate solution of the system of linear equations y = 1.5x – 1 and y = 1?
(0.33, 1)
(1.33, 1)
(1.83, 1)
(2.33, 1)
Answer:
Question 1. (2.2, -1.4)
Question 2. (1.33, 1)
Step-by-step explanation:
Equations for the given lines are
-----(1)
It is given that this line passes through two points (0, 2.5) and (2.2, 1.4).
------(2)
This equation passes through (0, -3) and (2.2, -1.4).
Now we have to find a common point through which these lines pass or solution of these equations.
From equations (1) and (2),
x =
x = 2.2
From equation (2),
y = -1.4
Therefore, solution of these equations is (2.2, -1.4).
Question 2.
The given equations are y = 1.5x - 1 and y = 1
From these equations,
1 = 1.5x - 1
1.5x = 2
x =
Therefore, the solution of the system of linear equations is (1.33, 1).
The correct approximate solution of the system of linear equations[tex]\( y = 1.5x - 1 \) and \( y = 1 \) is \( (1.33, 1) \).[/tex]
To find the solution, we need to set the two equations equal to each other since they both equal \( y \). This gives us the equation:
[tex]\[ 1.5x - 1 = 1 \][/tex]
Now, we solve for [tex]\( x \)[/tex]:
[tex]\[ 1.5x = 1 + 1 \][/tex]
[tex]\[ 1.5x = 2 \][/tex]
[tex]\[ x = \frac{2}{1.5} \][/tex]
[tex]\[ x = 1.\overline{3} \][/tex]
[tex]\[ x \approx 1.33 \][/tex]
Having found [tex]\( x \)[/tex], we can now find the corresponding [tex]\( y \)[/tex] value by substituting [tex]\( x \)[/tex] into either of the original equations. Since [tex]\( y = 1 \)[/tex] is given, we already know that [tex]\( y \)[/tex] is exactly 1. Therefore, the solution to the system is approximately [tex]\( (1.33, 1) \)[/tex].
a 5cm x 11cm rectangle sits inside a circle with a radius of 12cm
what is the area of the shaded region? the shaded region is the circle - the rectangle inside it.
Answer: 397.39 cm2
Step-by-step explanation:
Hi, first we have to calculate the area of the circle:
Area of a circle = π x r^2
Replacing with the values:
A(C) =π x 12^2 = 452.39cm2
Now, we have to calculate the rectangle area:
Rectangle area = width x length = 5 x11 = 55cm2
Finally, since the shaded region is the circle and the rectangle is inside of it, we have to subtract the area of the rectangle to the area of the circle:
452.39 -55 = 397.39 cm2
Feel free to ask for more if needed or if you did not understand something.
Answer:
397.39
Step-by-step explanation:
extras...
Daniel's class has 30 students. In the class, 16 students are boys. Which decimal is equivalent to the fraction of the class that is boys?
Answer:
0.53333333333
Step-by-step explanation:
The fraction of the class that is boys is 16/30.Therefore, the decimal equivalent the fraction of boys in Daniel's class is 0.53.
Explanation:The fraction of the class that is boys is obtained by dividing the number of boys by the total number of students. In this case, there are 16 boys and 30 students in total. The fraction is therefore 16/30.
To write this fraction as a decimal, divide the numerator (16) by the denominator (30). The decimal equivalent of 16/30 is approximately 0.5333.
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Sarah’s essential (fixed) expenses are $750 per month, her essential (flexible) expenses are $500 per month, and her non-essential expenses are $250 per month. Her 401-K retirement account has $6,000, her education savings account has $3,000, and her emergency fund savings account has $2,300. Sarah wants an emergency fund of 5 times monthly living expenses. How much more does Sarah need to save to have an adequate emergency fund?
a.
$1,450
b.
$5,200
c.
$0
d.
$950
Answer:
B. 5,200
Step-by-step explanation:
Sarah's essential (fixed) expenses = $750 per month
Her essential (flexible) expenses = $500 per month
Her non-essential expenses = $250 per month
Her total monthly living expenses = 750 + 500 + 250 = $1,500
Sarah wants an emergency fund of 5 times monthly living expenses.
1500 × 5 = $7,500
Currently she is having her emergency fund savings account is = $2,300
She needs to save more = 7,500 - 2,300 = $5,200
Sarah need to save more $5,200.
Sarah need to save $5,200 to have an adequate emergency fund.
What is an expression?An expression is a number, or a variable, or a combination of numbers and variables and operation symbols.
Now it is given that,
Sarah's essential (fixed) expenses = $750 per month
Her essential (flexible) expenses = $500 per month
Her non-essential expenses = $250 per month
⇒ total monthly living expenses = 750 + 500 + 250 = $1,500
∵ Sarah wants an emergency fund of 5 times monthly living expenses.
∴ emergency fund = 1500 × 5 = $7,500
Currently she is having her emergency fund savings account = $2,300
Thus, Amount needs to be save = 7,500 - 2,300 = $5,200
Thus, Sarah need to save $5,200 to have an adequate emergency fund.
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The length of the base of a square pyramid is 9 inches. The slant height is 12 inches. What is the surface area of the pyramid? A) 189 in2 B) 225 in2 C) 297 in2 D) 360 in2
Answer: C) 297 in2
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Surface area of a square pyramid (S) = 2 (length of the base) slant + length of the base ^2
S = 2bs + b^2
Replacing with the values given:
S = 2 (9) 12 + 9^2
S = 216 +81 = 297 square inches
Feel free to ask for more if needed or if you did not understand something.
to help local charity, Sam decides to run an advertisment where he gives away 10% of the days sales to the charity. If the store sells $8,564 on that day, Then how much will Sam give away ?
Answer:
856.4
Step-by-step explanation:
10% of 8564 =856.4
Which function graph has axis of symmetry x=2
Answer: The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. The vertex of the parabola is (2,1) . So, the axis of symmetry is the line x=2.
Step-by-step explanation:
Given: △ABC with a2 + b2 = c2 and right △DEF constructed with legs a and b and hypotenuse n
Prove: △ABC is a right triangle.
Complete the missing parts of the paragraph proof.
Proof:
We are given a2 + b2 = c2 for △ABC and right
△DEF constructed with legs a and b and hypotenuse n. Since △DEF is a right triangle, we know that a2 + b2 = n2 because of the . By substitution, c2 = n2 Using the square root property and the principle root, we can take the square root of both sides to get
c = n. By , triangles ABC and DEF are congruent. Since it is given that
∠F is a right angle, then ∠ is also a right angle by CPCTC. Therefore, △ABC is a right triangle by
Answer:
Pythagorean Theorem
SSS
C
the definition of right triangle
Step-by-step explanation:
2x + 3y = 1200
3x + 2y = 1300
Based on the system of equations above, what is the
value of 5x+ 5y?
To find the value of 5x + 5y, you can solve the system of equations using the elimination method, and substitute the values of x and y into the expression.
Explanation:To find the value of 5x + 5y based on the system of equations:
2x + 3y = 1200
3x + 2y = 1300
we can solve the system by either substitution or elimination method. Let's use the elimination method:
Multiply the first equation by 3 and the second equation by 2 to make the coefficients of x in both equations the same. Subtract the second equation from the first equation to eliminate x. Solve for y. Substitute the value of y back into one of the original equations to solve for x. Once you have the values of x and y, substitute them into 5x + 5y and calculate the final value.
The value of 5x + 5y in this system of equations is 12500.
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Filip decides to buy a muffin.
There is 1 chocolate, 2 blueberry and 3 lemon muffins.
If he picks one at random, what are the chances of him picking a blueberry muffin?
Answer in the form of a fraction in its simplest form.
Answer:
1/2
Step-by-step explanation:
Do I get brainliest?
Answer:
1/2
Step-by-step explanation:
If Angle 2 is congruent to angle 4 and Angle 5 is congruent to angle 7, which describes all the lines that must be parallel?
Lines r and s are crossed by lines t and u to form 16 angles. Clockwise from top left, at the intersection of r and t, the angles are 1, 2, 3, 4; at the intersection of s and t, 5, 6, 7, 8; at the intersection of u and s, 9, 10, 11, 12; at the intersection of u and r, 13, 14, 15, 16.
Only lines r and s must be parallel.
Only lines t and u must be parallel.
Lines r and s and lines t and u must be parallel.
Neither lines r and s nor lines t and u must be parallel.
Answer:
C.Lines r and s and lines t and u must be parallel.
Step-by-step explanation:
Line r s and t must be parallel and c is closest to that lol
The lines r and s and lines t and u must be parallel option third "Lines r and s and lines t and u must be parallel" is correct.
What is a straight line?A straight line is a combination of endless points joined on both sides of the point.
The slope 'm' of any straight line is given by:
[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have:
If Angle 2 is congruent to angle 4 and Angle 5 is congruent to angle 7.
From the information given we can draw lines r, s, t, and u(please attached picture)
From the picture, we can clearly see: lines r and s and lines t and u must be parallel.
Thus, the lines r and s and lines t and u must be parallel option third "Lines r and s and lines t and u must be parallel" is correct.
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What is the factorization of the polynomial below?
3x^3- 12X^2-96x
choose 1 answer:
a. 11/27
b. 16/27
c. 1
d. 27/16
How does multiplying the variable of an absolute value function by a positive constant, k, affect the vertex of the function?
The vertex shifts up k units.
The vertex shifts to the right k units.
The vertex of the function doesn't change.
The vertex of the function changes from a minimum to a maximum or vice versa.
Answer:
C. The vertex of the function doesn't change.
Which number is the greatest? 0.35, 0.2, 0.56, 0.8, 0.09
Answer:
0.8
Step-by-step explanation:
If the volume of the prism is 240 cubic inches, what is the base length?
A)
10 inches
12 inches
13 inches
D)15 inches
Without additional information about the height or area of the base of the prism, it is impossible to determine the base length from the volume alone.
Explanation:To determine the base length of a prism when the volume is known, one must have additional information about the prism, such as the area of the base or other dimensions. Since the question does not provide any information about the height or the area of the base, we cannot calculate the base length solely from the volume. Typically, the volume of a prism is calculated using the formula V = base area × height. Without knowing either the base area or the height of the prism in this question, we cannot find the base length. Thus, we cannot choose from the provided options (10 inches, 12 inches, 13 inches, 15 inches) without additional information about the prism.
4x - 5x + 9 = 5x - 9
Answer:
= 3
Step-by-step explanation:
4 − 5 + 9 = 5 − 9
− + 9 = 5 − 9
i hope this helps<3
:)
The value of solution of expression is,
⇒ x = 3
We have to given that;
Mathematical expression is,
⇒ 4x - 5x + 9 = 5x - 9
Now, We can simplify as;
⇒ 4x - 5x + 9 = 5x - 9
⇒ - x + 9 = 5x - 9
⇒ 9 + 9 = 5x + x
⇒ 18 = 6x
⇒ 6x = 18
⇒ x = 18 / 6
⇒ x = 3
Thus, The value of solution of expression is,
⇒ x = 3
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Which would be a correct first step to solve the following system of linear equations using the elimination method? 2x+3y=6
-x+3y=15
A) Add the two equations together
B) Multiply the second equation by 2
C) Write the first equation in the form y=Mx+b
D) Multiply the second equation by -3
Step-by-step explanation:
2X alla seconda meno 3