Answer:
120.
Step-by-step explanation:
2x+4x=180
(2x+4x)=180
6x=180
6x÷6 = 180÷6
x=30.
Then, Substitute for measurement of angle Q
4*30=120.
Angle Q measures 120 degrees.Which expression is equivalent to x(x + 9) + 20 x + 5 ?
A) x + 4
B) x + 5
C) x − 4
D) x − 5
Answer: None of them are equal
Step-by-step explanation:
Answer: I hope this helps with any confusion
A) x + 4
Step-by-step explanation:
x(x + 9) + 20
x + 5
x2 + 9x + 20
x + 5
(x + 4)(x + 5)
x + 5
x + 4
You drop a ball from a height of 0.5 meters. Each curved path has 52% of the height of the previous path. a. Write a rule for the sequence using centimeters. The initial height is given by the term n = 1. b. What height will the ball be at the top of the sixth path?
Answer:
a) [tex]a_n = 50 (0.52) ^ {n-1}[/tex]
b) [tex]a_6 = 50 (0.52) ^ 5 = 1.90\ cm[/tex]
Step-by-step explanation:
If each curved path has 52% of the previous height this means that [tex]\frac{a_{n+1}}{a_n} = 0.52[/tex]
Then the radius of convergence is 0.52 and this is a geometric series.
The geometric series have the form:
[tex]a_n = a_1 (r) ^ {n-1}[/tex]
Where
[tex]a_1[/tex] is the first term of the series and r is the radius of convergence.
In this problem
[tex]a_1 = 0.5[/tex] meters = 50 cm
[tex]r = 0.52[/tex]
a) Then the rule for the sequence is:
[tex]a_n = 50 (0.52) ^ {n-1}[/tex]
b) we must calculate [tex]a_6[/tex]
[tex]a_6 = 50 (0.52) ^ 6-1\\\\a_6 = 50 (0.52) ^ 5 = 1.90\ cm[/tex]
Leo needs 10 red roses and 15 pink daisies for every 5 bouquets he makes for a flower shop. Drag red roses and pink daisies into the box to show how many Leo needs for 3 bouquets.
Leo needs 6 red roses and 9 pink daisies for 3 bouquets, calculated by dividing the number of flowers needed for 5 bouquets by 5 and then multiplying by 3.
Explanation:To calculate the amount of red roses and pink daisies Leo needs for 3 bouquets, we first determine the number needed for one bouquet. Since Leo needs 10 red roses and 15 pink daisies for every 5 bouquets, we divide each amount by 5 to find the number per single bouquet:
Red roses per bouquet: 10 red roses / 5 bouquets = 2 red roses per bouquetPink daisies per bouquet: 15 pink daisies / 5 bouquets = 3 pink daisies per bouquetNow, we multiply the number of flowers needed per bouquet by 3 to find the total number for 3 bouquets:
Red roses for 3 bouquets: 2 roses per bouquet × 3 bouquets = 6 red rosesPink daisies for 3 bouquets: 3 daisies per bouquet × 3 bouquets = 9 pink daisiesTherefore, for 3 bouquets, Leo needs 6 red roses and 9 pink daisies.
The answer please
To the picture i just sent you
The correct answer is D, since if you simplify the equation 11 + 4 < -8 you get x < -2. Since -2 is greater than x, the arrow would need to point to the left signifying that it is a lesser value.
Factor completely 3x 2 + 2xy - y 2
Answer:
Final answer is [tex](3x-y)(x+y)[/tex].
Step-by-step explanation:
Given expression is [tex]3x^2+2xy-y^2[/tex].
Now we need to factor the given expression [tex]3x^2+2xy-y^2[/tex] completely. Let's use factor by grouping method.
[tex]3x^2+2xy-y^2[/tex]
[tex]=3x^2+3xy-xy-y^2[/tex]
[tex]=3x(x+y)-y(x+y)[/tex]
[tex]=(3x-y)(x+y)[/tex]
Hence final answer is [tex](3x-y)(x+y)[/tex].
(3x−y)(x+y) is the answer but did you mean to put 3x^2 + 2xy - y^2 as your answer?
How is 93081 rounded to the nearest thousand
It would be 93,000 because it’s closed to 93,000 than 94,000
heya dear
93000.........
Shelia does quality control for a company that manufactures lawn mower parts. On any given day, she finds the probability distribution for defective parts as shown in the table. Using the data from the table, what is the probability of having 2 defective parts in a day? Diagram not drawn to scale
Answer:
0.04
Step-by-step explanation:
Looking at the chart we can see that there are 0, 1, 2 and 3 defective parts in one column while the other column says the probability of each happening. Look at the probability of there being 2 defective parts and that will be your answer.
Answer:
0.04
Next answer is 0.15.
Step-by-step explanation:
HELP PWEASEE Brainliestt
Meg has a can that contains 80% orange juice and the rest water. The can has 1 liter of water.
Part A: Write an equation using one variable that can be used to find the total number of liters of orange juice and water in the can. Define the variable used in the equation and solve the equation. Hint: 0.8x represents the number of liters of orange juice in the can. (5 points)
Part B: How many liters of orange juice are present in the can? Show your work. (5 points)
A)x+4x = Juice and water
x = Water
4.00 is total juice relative to water
+
1.00 is total water
B) 4 liters
(1 liter)+4(1 liter) = Total
1 + 4 = 5
8
Half a number increased by 10 is
equal to 35 less than twice the
number. What is the number?
x/2 + 10 = 35 - 2x
x/2 + 2x = 35 - 10
5x/2 = 25
5x = 25.2
5x = 50
x = 50/5
x = 10
The number is 10
Let's take it step by step to find the number for the given situation:
Step 1: Define the variable.
Let's denote the number we are trying to find as \( x \).
Step 2: Set up the equation based on the given information.
The problem statement says "Half a number increased by 10 is equal to 35 less than twice the number." This gives us the equation:
\[ \frac{1}{2}x + 10 = 2x - 35 \]
Step 3: Solve the equation.
Now we'll solve for \( x \). To do this, we need to get all terms involving \( x \) on one side and the constant terms on the other. Start by subtracting \( \frac{1}{2}x \) from both sides to get rid of the \( x \) term on the left-hand side:
\[ 10 = \frac{3}{2}x - 35 \]
Now, add 35 to both sides to isolate the \( x \)-related term on the right-hand side:
\[ 10 + 35 = \frac{3}{2}x \]
\[ 45 = \frac{3}{2}x \]
Next, to solve for \( x \), multiply both sides by \( \frac{2}{3} \) to cancel out the fraction:
\[ \frac{2}{3} \cdot 45 = x \]
\[ x = 30 \]
Step 4: Verify the solution.
Plugging the value of \( x \) back into the original equation to check:
\[ \frac{1}{2} \cdot 30 + 10 = 2 \cdot 30 - 35 \]
\[ 15 + 10 = 60 - 35 \]
\[ 25 = 25 \]
The equation is true, confirming that the solution \( x = 30 \) is correct.
Therefore, the number we were trying to find is 30.
Find the measure of each number angle:
Answer:
1 = 60, 4 = 30, 5 = 30, 6 = 150, 7 = 110, 8 = 30, 9 = 60, 10 = 90. 2 = 47.5, 3 = 132.5
Step-by-step explanation:
Starting with angle 5: knowing that arc BC = 30 and angle 5 is a central angle, it has an angle measure equal to the measure of the arc it intercepts.
Angle 6 is supplementary to angle 5, so 180 - 30 = 150.
Angle 9 = 60. Ch is a diameter, so that means it splits the circle into 2 congruent halves, each measuring 180 degrees around the outside. So if arcs AB and CB both measure 30, then arc AH measures 180 - 30 - 30 = 120. By definition, the measure of angle 9 is half the measure of the arc it intercepts.
Angles 4 and 8 = 30 each. Because you have AH parallel to CG, then CH is a transversal, creating a pair of alternate interior angles that are congruent. Those angles are 4 and 8. We find 8 to be an inscribed angle, cutting off arc ABC which measures 60 degrees. An inscribed angle is half the measure of the arc it intercepts. Because angle 4 measures 30 degrees and is inscribed, the arc it cuts off, arc GH, measures twice the angle cutting it. So arc GH measures 60.
Again, since CH is a diameter, then the semicircle CDEG measures 180. Since we know from the description that arcs CD and DE are congruent, then arc CD + arc DE + arc EG (given as 50) + arc GH = 180. Since arcs CD and DE are congruent, lets just call them "x" and we have two of them. That gives us that 2x + 50 + 60 = 180. x = 35. Angle 1 is equal to half of the sum of its intercepted arcs ( 35 + 35 + 50) which is 60.
Angle COE intercepts arc CDE, and is central, so angle COE measures 70, and since angle 7 is supplemetray to angle COE, then angle 7 measures 180 - 70 = 110.
Angle 10 by definition is a right angle (refer to the theorem regarding a tangent line to a point on a circle).
Angle 2 is half of the sum of 35 (arc CD) and 60 (arc GH), so angle 2 measures 47.5 and that means that angle 3, supplementary to angle 2, measures 180 - 47.5 = 132.5. I think those are all correct. The only one I'm unsure of is angle 2.
What is the difference between the rational expressions below? 3x+1/x^2-5/x
Answer:
(3x^2-5x-5)/(x^2+x) <--- answer
Step-by-step explanation:
3x/(x+1) - 5/x = (3x^2 - 5(x+1) )/[ x(x+1) ]
= (3x^2 - 5x - 5)/(x^2 + x)
The difference between the rational expressions 3x+1/x and 5/x is 3x - 4/x.
Explanation:The difference between these two rational expressions will be obtained by subtracting the second expression from the first. To do this, we first need to simplify the expressions wherever possible. The first expression, 3x + 1/x, remains as it is. The second expression, 5/x, is a simple fraction and can't be simplified any further either.
Subtracting the second from the first, you get (3x + 1/x) - (5/x) which simplifies to 3x - 4/x. The difference between these two rational expressions is hence 3x - 4/x.
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17. Solve for p in the equation 7p = –63.
A. p = –9
B. p = 9
C. p = –70
D. p = –56
Answer:
[tex]p=-9[/tex]
Step-by-step explanation:
We want to solve the linear equation;
[tex]7p=-63[/tex]
We divide both sides of the given linear equation by 7 to obtain;
[tex]\frac{7p}{7}=\frac{-63}{7}[/tex]
This implies that;
[tex]p=\frac{-63}{7}[/tex]
[tex]p=\frac{-9\times7}{7}[/tex]
We now cancel out the common factors to get:
[tex]p=-9[/tex]
which equation in point-slope form contains the point (-3, 5) and has slope -1 ANSWERS y + 3 = -1(x-5) y-3= -1(x+5) y+5=-1(-3) y-5=-1(x+3)
Answer:
y - 5 = -1(x + 3)Step-by-step explanation:
The point-slope form of an equation of a line:
[tex]y-y_1=m(x-x_1)[/tex]
m - slope
We have m = -1 and the point (-3, 5). Substitute:
[tex]y-5=-1(x-(-3))\\\\y-5=-(x+3)[/tex]
If you know that the combination is five digits Long how many combinations are there ?explain how you got your guess
100,000
For each possible combination digit, there are 10 options: 0-9. Multiply ten by itself five times (for five digits) to find the number of combinations. This gives you 100,000 possible combinations.
Which shape represents 6% of the rectangle?
Answer:
Step-by-step explanation:
D
area of rectangle=25*12=300
6 % of area=300*6 %=18
area of D=1/2 *6*6=18
so D
The question about the shape representing 6% of a rectangle requires more information about the dimensions or sizes involved to be answered accurately in the context of Mathematics.
Explanation:The question regarding which shape represents 6% of the rectangle pertains to understanding fractions or percentages of shapes and is related to the concepts of area and proportion within the field of Mathematics. To answer this, one would need more information about the dimensions of the rectangle or the sizes of the shapes involved.
The reference information provided seems unrelated to calculating percentages of a rectangle, and thus it is not possible to give a precise answer regarding the shape without additional context or clarification.
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To make a fruit punch orange juice and apple juice are mixed together in the ratio 3:1
Beth wanted to make 16 litres of punch and calculates that she would need 12 litres of orange
juice.
Is this correct?
Justify your answer by calculation.
© Pegasys 2013
Answer:
It is correct.
Step-by-step explanation:
Orange to Apple juice = 3:1.
Work out the 'multiplier':
3 + 1 = 4.
3 parts are orange so we need 3 * the multiplier = 3*4 = 12 litres.
Solve this sumutaneous equation
2x-5 y=9
3x+4y=2
Answer:
x = 2 and y = -1 → (2, -1)Step-by-step explanation:
[tex]\left\{\begin{array}{ccc}2x-5y=9&\text{multipy both sides by 4}\\3x+4y=2&\text{multiply both sides by 5}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}8x-20y=36\\15x+20y=10\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad23x=46\qquad\text{divide both sides by 23}\\.\qquad x=2\\\\\text{put it to the second equation}\\\\3(2)+4y=2\\6+4y=2\qquad\text{subtract 6 from both sides}\\4y=-4\qquad\text{divide both sides by 4}\\y=-1[/tex]
please help asap 50 points
Answer:
9⁹ ÷ 9⁶.
The expression 9³ is equivalent to 9⁹ ÷ 9⁶.
Step-by-step explanation
hope it
Which of the following could be the graph of this equation?
D is the correct graph follows into whatever
Answer: OPTION C.
Step-by-step explanation:
Given a function f(x), the range of the inverse of f(x) will be the domain of the function f(x) and the range of the domain of f(x) will be the range of the inverse function.
For example, if the point (2,1) belongs to f(x), then the point (1,2) belongs to the inverse of f(x).
Observe that in the graph of the function f(x) the point (-3,1) belongs to the function, then the point (1,-3) must belong to the inverse function.
Therefore, you need to search the option that shown the graph wich contains the point (1,-3).
Observe that the Domain f(x) is (-∞,0) then the range of the inverse function must be (-∞,0).
This is the graph of the option C.
PLEASEEEE HELLPPP 15 points
Answer:
P = 4s
Step-by-step explanation:
We see that on every point on the line, the perimeter is 4 times the side length. For example, when the [tex]P[/tex] is 24, [tex]s[/tex] is 6. When [tex]P[/tex] is 20, [tex]s[/tex] is 5. So our answer is [tex]\boxed{P = 4s}[/tex]
Drag each equation to its equivalent fact.
Answer:
[tex] \frac{4}{5} \div \frac{2}{3} = n[/tex]
[tex] \frac{4}{5} = n \times \frac{2}{3} [/tex]
[tex] \frac{3}{2} \div \frac{4}{5} = n [/tex]
[tex] \frac{4}{5} = n \times \frac{2}{3} [/tex]
[tex] \frac{2}{3} \times n = \frac{4}{5} [/tex]
What is the midpoint of OA
Answer:
Step-by-step explanation:
if i had to guess i would say a
ANSWER
The midpoint is a) (m,n)
EXPLANATION
The point O has coordinate (0,0) and the point A has coordinate (2m,2n)
The x-coordinate of the midpoint is
[tex]x = \frac{0 + 2m}{2} [/tex]
[tex]x = \frac{2m}{2} [/tex]
[tex]x = m[/tex]
Also,
[tex]y = \frac{0 + 2n}{2} [/tex]
[tex]y = \frac{ 2n}{2} [/tex]
[tex]y = n[/tex]
The answer is A
Solve 2x2 + 8 = 0 by graphing the related function.
Answer:
The values of x are x= 2i and x= -2i
Step-by-step explanation:
We need to solve the equation:
2x^2 + 8 =0
Taking 2 common
2(x^2 +4) =0
Dividing both sides by 2
x^2+4 =0
Adding -4 on both sides
x^2 +4 -4 = 0-4
x^2 = -4
Taking square root on both sides we get
√x^2 = √-4
we know √4 = 2 and √-1 = i so answer is:
x = ± 2i
The values of x are x= 2i and x= -2i
The graph is shown in figure attached.
To solve 2x² + 8 = 0 by graphing, one plots the corresponding quadratic function f(x) = 2x² - 8, which is a parabola that opens upwards. The equation has no real solutions as the function does not cross the x-axis, indicating that the original quadratic equation has no real roots.
Explanation:To solve the quadratic equation 2x² + 8 = 0 by graphing the related function, we first need to rewrite the equation in the standard form of a quadratic function, which is f(x) = ax² + bx + c. In this case, the equation becomes f(x) = 2x² + 0x - 8.
The roots of the equation are the values of x where the function crosses the x-axis. To find these, we set the function equal to zero and solve for x. Subtracting 8 from both sides gives us 2x² = -8. Dividing by 2, we get x² = -4. Taking the square root of both sides, we see that x could be either positive or negative square root of -4, which does not have a real solution since you can't have a real number whose square is negative. Therefore, the graph of the function will not cross the x-axis and there are no real roots to this equation.
If we were to graph this function, we would plot the quadratic curve and notice that it is a parabola opening upwards because the coefficient of x² is positive. However, as we have established there are no real solutions, this would be confirmed by the fact that the vertex of the parabola is above the x-axis.
What is the solution to the equation
Answer:
x = 3
Step-by-step explanation:
You can multiply by 2x^2, then subtract x
2x = x +3 . . . . . multiply by 2x^2
x = 3 . . . . . . . . . subtract x
___
The attached graph shows the difference between the left side of the equation and the right side. When that difference is zero, the value of x is a solution. There is one solution at x=3. (x=0 is not in the domain of the relation. There is a vertical asymptote there.)
ill give brainliest
Two equations are given below:
m + 4n = 8
m = n − 2
What is the solution to the set of equations in the form (m, n)?
Select one:
a. (4, 6)
b. (2, 4)
c. (0, 2)
d. (6, 8)
Answer:
c. (0, 2)Step-by-step explanation:
[tex]\left\{\begin{array}{ccc}m+4n=8&(1)\\m=n-2&(2)\end{array}\right\\\\\text{substitute (2) to (1):}\\\\n-2+4n=8\qquad\text{add 2 to both sides}\\5n=10\qquad\text{divide both sides by 5}\\n=2\\\\\text{put the value of}\ n\ \text{to (2):}\\\\m=2-2\\m=0[/tex]
The width of a rectangle is 3 units less than the length. The area of the rectangle is 28 units. What is the width, in units, of the rectangle.
Answer:
4
Step-by-step explanation:
Let's call the width W and the length L.
We know the width is 3 less than the length, so:
W = L - 3
And we know the area is 28, so:
28 = WL
If we solve for L in the first equation:
L = W + 3
And substitute into the second equation:
28 = W (W + 3)
28 = W² + 3W
0 = W² + 3W - 28
0 = (W + 7) (W - 4)
W = -7, 4
Since W can't be negative, W = 4 units.
The width, in units, of the rectangle, if the area of the rectangle is 28 units, is 4 units.
What is area?The measurement that expresses the size of a region on a plane or curved surface is called an area. Surface area refers to the area of an open surface or the boundary of a three-dimensional object, whereas the area of a plane region or plane area refers to the area of a form or planar lamina.
Given:
The width of a rectangle is 3 units less than the length. The area of the rectangle is 28 units,
Write the equation as shown below,
b = l - 3 (Here, l is the length and b is the width)
l × b = 28
Solve the above equations,
l = 7 units and b = 7 - 3 = 4 units
Therefore, the width, in units, of the rectangle, if the area of the rectangle is 28 units, is 4 units.
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el padre de luis es treinta y dos años mayor que su hijo. si sumamos las edades de ambos el resultado es sesenta y ocho años. ¿qué edad tiene cada uno?
P: padre de Luis
h: hijo
P=32+h
P+h=78
Método: sustitución
*p + h = 78
(32 + h) + h = 78
32 + h + h = 78
2h + 32 = 78
2h = 78 - 32
2h = 46
[tex]h = \frac{46}{2} \\ \\ h = 23[/tex]
El hijo tiene 23 años
EL padre tiene 55 años
P = 32 + h
P = 32 + 23
P = 55
which of the following choices describes the bases of a cylinder a disks be congruent C similar D parallel
Answer: Disc, Congruent, parallel
Step-by-step explanation:
The disks, congruent, and parallel choices describes the bases of a cylinder option (A), (B), and (D) are correct.
What is a cylinder?In geometry, it is defined as the three-dimensional shape having two circular shapes at a distance called the height of the cylinder.
We know the volume of the cylinder is given by:
[tex]\rm V = \pi r^2 h[/tex]
We have given a statement:
Which of the following choices describes the bases of a cylinder:
The options given:
A) disks
B) congruent
C) similar
D) parallel
As we know, the cylinder has two circular bases at height h between them.
The bases of a cylinder can be described as disks, congruent, and parallel.
Thus, the disks, congruent, and parallel choices describes the bases of a cylinder option (A), (B), and (D) are correct.
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solve the equation thanks!
Answer:
c = [tex]\frac{27}{40}[/tex]
Step-by-step explanation:
To eliminate the fractions, multiply all terms by the lowest common multiple of 8 and 5
The lowest common multiple of 8 and 5 is 40
5 + 40c = 32 ( subtract 5 from both sides )
40c = 27 ( divide both sides by 40 )
c = [tex]\frac{27}{40}[/tex]
Need Help on Both of these, Will give 50 Points to answerer:
Part A:
After grading the most recent chapter test, a science teacher asks twelve of his 10th-grade summer school students how long they studied for the test. Their answers, as well as their corresponding test grades, were recorded on a table and placed on a scatter plot.
(Scatter plot values: 0,25 1,53 2,50 2,80 3,58 4,92 6,74 6,89 8,100 10,60 10,90 12,100)
Use the line of best fit shown (not provided) in the scatter plot to make a conjecture about the number of hours studied versus the resulting test grade. Answer in complete sentences.
Part B: Algebraically write the equation of the best fit line in slope-intercept form. Include all of your calculations in your final answer.
Part A: Scatter plot with best-fit line attached. You'll find the line to have equation (approximately)
[tex]y=51.34+3.98x[/tex]
The positive slope suggests that test scores and study time are directly are proportional.
Part B: Same as in a previous question you had posted. Pick two points on the provided line and compute the slope as best you can. For example, I might pick (2, 30) and (4, 40), which gives a slope of
[tex]\dfrac{40-30}{4-2}=5[/tex]
and assuming the line passes through (2, 30) exactly, it would have equation
[tex]y-2=5(x-30)\implies y=5x-148[/tex]