Answer:
Every positive number "n" has two square roots. One of them is positive ( or ) , and the other is negative ( ). Together, these are denoted as . The principal square root is the positive number square root. Unless otherwise stated, "the square root" of a number refers ONLY to the principal square root.
Step-by-step explanation:
Answer:
positive #square root
Step-by-step explanation:
Pls help w 9 and 10 I need help
Answer:
theyre both b
Step-by-step explanation:
can someone please help
Answer:
IV
Step-by-step explanation:
Answer:
the correct answer is ll
Step-by-step explanation:
because posative to posotive is section 1 and negative to posotive is section 2 and negativ to negative is 3
3x-61=2x-50
I need the answer
Answer: [tex]x = 11[/tex]
Solving for variable x
Move all terms containing x to the left, all other terms to the right
Add -2x to each side of the equation
[tex]-61 + 3x + -2x = -50 + 2x + -2x[/tex]
Combine like terms: 3x + -2x = 1x
[tex]-61 + 1x = -50 + 2x + -2x[/tex]
Combine like terms: 2x + -2x = 0
[tex]-61 + 1x = -50 + 0\\-61 + 1x = -50[/tex]
Add 61 to each side of the equation.
[tex]-61 + 61 + 1x = -50 + 61[/tex]
Combine like terms: -61 + 61 = 0
[tex]0 + 1x = -50 + 61\\1x = -50 + 61[/tex]
Combine like terms: -50 + 61 = 11
[tex]1x = 11[/tex]
Divide each side by 1
[tex]1x/1=11/1\\x=11[/tex]
Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted:
rectangle with a length of x plus 25 and width of x plus 15 with a rectangle in the bottom right corner labeled bench that has a length of 10 and width of 3
Write an equation to determine the area, A, of the patio that will be painted.
A = (x + 18)(x + 35)
A = (x + 15)(x + 25) + 30
A = (x + 5)(x + 22)
A = (x + 25)(x + 15) − 30
Answer:
A = (x + 18)(x + 35)
Step-by-step explanation:
Answer:
A = (x + 25)(x + 15) − 30
Step-by-step explanation:
Area of the patio:
Sp = lwl = x +25w = x + 15S = (x + 25)(x + 15)Area of bench:
Sb= lw = 10*3 = 30Area A to be painted is the area of patio minus area of bench:
A = (x + 25)(x + 15) - 30So the last choice is the correct one.
What is the value of x
Answer:
x = 3
Step-by-step explanation:
[tex] \frac{24}{32} = \frac{9x - 9}{6x + 6} \\ \frac{3}{4} = \frac{3(3x - 3)}{3(2x + 2)} \\ \frac{3}{4} = \frac{(3x - 3)}{(2x + 2)} \\ 4(3x - 3) = 3(2x + 2) \\ 12x - 12 = 6x + 6 \\ 12x - 6x = 6 + 12 \\ 6x = 18 \\ x = \frac{18}{6} \\ x = 3[/tex]
Which matrix represents the system of equations shown below? 3x-5y=12 4x-2y=15
Answer:
[tex]\left[\begin{array}{ccc}3&-5 &|12\\4&-2 &|15\\\end{array}\right][/tex]
Step-by-step explanation:
When making a matrix of two equations with the variables x and y, the result will be a matrix with three columns:
a column for the values of x in each equationa column for the values of y in each equationa column for the independent values of each equationsince our system of equations is:
[tex]3x-5y=12\\ 4x-2y=15[/tex]
we can see that the value for x in the first equation is 3 and in the second equation is 4, thus the first column will have the numbers 3 and 4:
[tex]\left[\begin{array}{ccc}3&&\\4&&\\\end{array}\right][/tex]
Now for the values of y we hvae -5 in the first equation and -2 in the second equation, we update the matrix with another column with the values of -5 and -2:
[tex]\left[\begin{array}{ccc}3&-5&\\4&-2&\\\end{array}\right][/tex]
Finally, the last column is the independent values of each equation (or the results) in the first equation that number is 12 and in the second equation is 15, thus the matrix is:
[tex]\left[\begin{array}{ccc}3&-5&12\\4&-2&15\\\end{array}\right][/tex]
usually there is a line separating the columns for the values of x and y, and the independent values:
[tex]\left[\begin{array}{ccc}3&-5 &|12\\4&-2 &|15\\\end{array}\right][/tex]
this is the matrix of the system of equations
The volume of a cylinder is 63.6 cubic inches,
and its height is 9 inches. Find the diameter of
the base of the cylinder.
Final answer:
To find the diameter of the base of the cylinder, use the formula for the volume to solve for the radius, then double the radius to find the diameter.
Explanation:
To find the diameter of the base of the cylinder, we need to first find the radius. We can use the formula for the volume of a cylinder, V = πr²h, where V is the volume, r is the radius, and h is the height. Rearranging the formula to solve for the radius, we have r = √(V/πh).
Plugging in the given values: V = 63.6 cubic inches and h = 9 inches, we can find the radius: r = √(63.6/3.142 x 9).
Calculating the values: r ≈ √(20.2649) ≈ 4.5055 inches. The diameter is twice the radius, so the diameter ≈ 2 x 4.5055 ≈ 9.011 inches.
Two friends shop for fresh fruit. Jackson buys a watermelon for $8.85 and 3 pounds of cherries. Tim buys a pineapple for $3.35 and 2 pounds of cherries. Use the variable p to represent the price, in dollars, per pound of cherries. Write and simplify an expression to represent how much more Jackson spent.
Answer + Step-by-step explanation:
Jackson spent $8.85 on watermelon and p*3 dollars on cherries, which simplifies to 8.85 + 3p dollars.
Tim spent $3.35 on pineapple and p*2 dollars on cherries, which simplifies to 3.35 + 2p dollars.
To find how much more Jackson spent than Tim, we can subtract Tim's total cost from Jackson's total cost, giving:
(8.85 + 3p) - (3.35 + 2p) = 5.50 + p
So Jackson spent $5.50 + p more than Tim.
What number multiplied by 8 will give a product of 9.6?
Answer:
1.2
Step-by-step explanation:
Write out the equation and let mbe the missing number:
8 × m = 9.6
Divide 8 to both sides:
[tex]\frac{8}{8}[/tex] × m = [tex]\frac{9.6}{8}[/tex]
Simplify for M
m = 1.2
The number that needs to be multiplied by 8 to yield the product of 9.6 is 1.2. This is calculated by dividing 9.6 by 8.
Explanation:The student is asking to solve for a number that when multiplied by 8 results in the product of 9.6. This can be solved by a straightforward division operation. When we say, 'a number multiplied by 8 equals 9.6', we're actually writing an equation for multiplication. To get that number, we'll need to divide 9.6 by 8 because division is the inverse operation of multiplication.
Here's how you do it, step-by-step:
Write down the division operation of 9.6 ÷ 8. Perform the division.
The solution to 9.6 ÷ 8 is 1.2. So, the number multiplied by 8 to get 9.6 is 1.2.
Learn more about Division here:https://brainly.com/question/37843448
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Estimate the sum of the decimals below by rounding to the nearest whole
number. Enter your answer in the space provided.
7.739
1.314
+ 2.073
Answer:
11
Step-by-step explanation:
1. round all decimals (7.739 to 8, 1.314 to 1, and 2.073 to 2)
2. 8+1+2=11
OR
1. 7.739+1.314+2.073=11.126
2. round answer (11.126 to 11)
answer is 11
Solve (x +9)2 = 25.
1. Apply the square root property of equality:
2. Isolate the variable.
V(x + 9)2 = 1,25
If x + 9 = 5, then x = 1
If x + 9 =-5, then x=
Answer:
[tex]x = - 4 \: or \: x = - 14[/tex]
Step-by-step explanation:
We have been given the equation
[tex](x + 9) {}^{2} = 25[/tex]
and we are asked to apply the square root property of equality to our given a equation and isolate the variable
First, take the square root of both sides of our equation
[tex] \sqrt{(x + 9) {}^{2} } = \sqrt{25} [/tex]
[tex]x + 9 = \: 15[/tex]
[tex]x + 9 = 5 \: or \: x + 9 = - 5[/tex]
[tex]x + 9 - 9 = 5 - 9 \: or \: x + 9 - 9 = - 5 - 9[/tex]
[tex]x = - 4 \: or \: x = - 14[/tex]
THEREFORE, THERE ARE TWO SOLUTIONS FOR OUR GIVEN EQUATION
[tex]x + 9 = 5 \: then \: x = - 4. \\ x + 9 = - 5 \: then \: x = - 14[/tex]
PLEASE MAKR ME BRAINLIEST IF YOU ARE HAPPY WITH THE ANSWER
what is the maximum height
Answer:
the highest height would be 144
Pure silver has a density of 10.49 g/cm3. If you have
42 grams of pure silver, what is the volume of your sample?
Round to four significant digits.
0.2498 cm^3
1.915 cm^3
2.216 cm^3
4.004 cm^3
Answer: Volume of sample is 4.004 cm³
Step-by-step explanation:
Given: Density of pure silver is 10.49 g/cm³
Mass of silver = 42 grams
To find: The volume of sample
As we know
[tex]\text{ Density }= \dfrac{\text {Mass }}{\text {Volume }}[/tex]
As given in question we have
[tex]10.49 \text { g/}cm^3 = \dfrac{42 g }{\text {Volume}} \\\\\Rightarrow \text {Volume}= \dfrac{42g}{10.49\text { g/}cm^3 } \approx 4.0038 \approx 4.004 cm^3[/tex]
Hence 4. is the right option
Volume of sample is 4.004 cm³
The ratio of the length of a rectangular field to its width is 4:3. If the length of the field is 100 meters, what is the perimeter of the field, in meters?
Answer:
350
Step-by-step explanation:
divide 100/4= 25
25*3=75 so width = 75 meters
perimeter= 2(l+w)
perimeter= 2(100+75)
perimeter= 2(175)
perimeter= 350
Answer:
IS THIS FOR RSMMM??
Step-by-step explanation:
350
Which side of triangle QRS is the longest?
Explanation:
Refer to the diagram below. The longest side of a triangle is always opposite the largest angle. Angle Q = 80 is the largest angle, so the opposite side RS is the longest side.
Side note: the smallest side is always opposite the smallest angle
Answer:
The answer is B:QR
Step-by-step explanation:create the triangle or add angel Q+R=?then Q+S=? then see what has greater vauleSuppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(x > or = to 86)?
Answer:
P(X >= 86) = P (Z >= 1) = 0.1587 from the Z-scores table
Step-by-step explanation:
Hopefully this time I will not make an algebraic mistake.
Ok
so mean u = 79, and standard dev = s = 7
We want P(X >= 86)
Standardize:
P ( (X - u)/s >= (86 - 79)/7 ) = P (Z >= 1) = 0.1587 from the Z-scores table
if it is P(x<=86) the answer is 0.84
Step-by-step explanation:
NEED HELP ASAP PLEASE!!!!!!!!!!!!!!!!!!
Answer:C
Step-by-step explanation:
The repeating decimal number 8.2151515... written as a fraction is
(Simplify your answer. Type a fraction.)
A line has a slope of 9 and a y-intercept of 5.What is its equation in slope-intercept form
Answer:
y=9x+5
Step-by-step explanation:
y=mx+b is the slope-intercept form where m is the slope and b is the y-intercept.
Given that m (the slope) = 9 and b (the y-intercept) = 5, we can substitute directly into the equation and get this answer:
y=9x+5
Solve the inequality for x.
–8x – 16 < –72
A) x < 7
B) x < 11
C) x > 7
D) x > 11
Answer:
x > 7
Step-by-step explanation:
–8x – 16 < –72
Add 16 to each side
–8x – 16+16 < –72+16
-8x < -56
Divide each side by -8, remembering to flip the inequality
-8x/-8 > -56/-8
x > 7
please help me with this problem
Answer:
x - 16
Step-by-step explanation:
Let the height of the taller palm tree be x.
The shorter palm tree's height is
x - 16
Answer:
x < 16
This is the answer but there has to be 20 characters so I wrote this.
Just go with the other guys answer
James places 1 counter in the first box.he placed 2 counters in the second box,4 counters in the third box ,8 counters in the fourth box ,and continues the pattern until he gets to the tenth box how many counters did James place in the tenth box?
He placed 512 counters in the tenth box
Because... If you do a (number pattern aka a list of numbers that follow a certain sequence or pattern) your pattern will be 1,2,4,8,16,32,64,128,256,512, So in the tenth box it will be 512 because I did the pattern and reached the tenth number, which is 512 so me and Avajcantu are correct.
You can also say 2 to the power of 9 or 10 to get 512 it’s the same thing. ⇒I hope this helped <3 and don’t copy without permission thank you!
"If x = y, then x + 4 = y + 4" represents the ________ property of equality.
Question 9 options:
A)
subtraction
B)
addition
C)
transitive
D)
substitution
Answer:
B
Step-by-step explanation:
Plz help i will give brainliest
Answer:
I 7AM I you have the same problem as the one that was the same as a good friend and a friend
Suppose you want to simulate surveying 100 people to find the date of the month (1st, 2nd, 3rd, . . .) each was born. You decide to simulate the survey by having your computer randomly list values 1 through 31. Would the simulation provide a fair representation of an actual survey of 100 people? Why or why not?
Yes, because all possible dates of the month would be represented.
No, because for the 12 months in the year not all of the dates are represented. No, because for the 12 months in the year each date is not equally likely.
Yes, because it is possible to get 100 random values in a simulation.
Answer:
No, because for the 12 months in the year each date is not equally likely.
Step-by-step explanation:
Not all months have 31 days, meaning that numbers as high as 31 will not be as common.
The proposed simulation overlooking the fact that not all months have 31 days, results in a bias for the dates 29th, 30th, and 31st. Therefore, it wouldn't represent the actual survey accurately.
Explanation:The simulation proposed would not provide a fair representation of an actual survey of 100 people for their birth dates. This is rooted in the fact that not all months have 31 days. The assumption of the simulation means that the dates from 1 through 31 have an equal likelihood of being selected, ignoring the fact that in reality, dates like the 30th and 31st may not be possible for all months. An accurate simulation would require consideration for these variations, meaning dates 1 through 28 should be uniformly represented, with the 29th, 30th, and 31st having conditional probabilities based on the month.
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A student draws three cards from a standard deck of cards. If the student replaces the card after each draw, what is the probability that none of the chosen cards were spades?
A. 3/4
B. 63/64
C. 27/64
D. 1/64
Please help I’ll give brainliest answer
The probability that none of the chosen cards were spades is 27/64.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
A student draws three cards from a standard deck of cards. If the student replaces the card after each draw.
Number of spades card = 13
The number of non-spade cards would be 39
The probability that none of the chosen cards were spades = Number of favorable outcomes / total number of outcomes
= 27/64.
Thus, The probability that none of the chosen cards were spades is 27/64.
Learn more about probability;
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Jennet graphs the inequality Negative 6 less-than x on the number line below.
A number line going from negative 11 to negative 1. An open circle is at negative 6. Everything to the right of the circle is shaded.
Which best describes the accuracy of Jennet’s graph?
The graph is incorrect. The number line represents numbers greater than –6 and the “less than” symbol is used in the inequality.
The graph is incorrect. There should be a closed circle at –6.
The graph is incorrect. The number line represents numbers less than –6 and the “greater than” symbol is used in the inequality.
The graph is correct.
Answer: the graph is correct.
Step-by-step explanation:
Answer:
dD
Step-by-step explanation:
Can someone help me and explain what to draw? I need this done ASAP
Answer: VV
Step-by-step explanation:
Help me please!! Geometry is my worse subject
Answer:
72 meters squared
Step-by-step explanation:
ABC or FED
(4 x 6)/2
18
FED + ACDF + ABC
18 + 36 + 18
A = 72
I really need someone to help me with this question ASAP.
Answer:
a=2, b=-20
Step-by-step explanation:
4(2xsquared -5x+3)= 8xsquared -20x +12