MATHEMATICS HIGH SCHOOL

HELP ASAP!!!!For which values(s) of a and b is it true that 5a·5b = (5a)b. A) all values of a and b B) a = 0, b = 1 C) a = 1 b = 1 D) a = 2 b = 2

Answers

Answer 1
Answer: I believe the answer would be A.
Answer 2
Answer:

Answer:

D) a = 2 b = 2

Step-by-step explanation:

a = 2 b = 2 is correct. Since the left side simplifies to 5a+b and the right side to 5ab, and 2+2 = 2*2.

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a typical stone on the lowest level of the great pyramids of egypt was a rectangular prism 5 feet long by 5 feet high by 6 feet deep and weighed 15 tons. what was the volume of the average stone? how much did one cubic foot of this stone weigh?

Answers

your total volume is 150 cubic feet and your weigh is .1 tons each cubic foot

What is the value of X in this proportion? (image of the proportion included)

Answers

X = 5
4x/50 = 2/x  take 4x and multiply it by the denominator in the other fraction it = 4x^2 do the same for the 2 &50 you get 100 now you have 4x^2=100 take the 4 divide it on both sides so 4/4=0 and 4/100=25 now you have 
x^2=25 find the square root of 25= (5) so X=5
u have to cross multiply. (multiply 4x by x and 50 by 2)

What is the proportion and answer?!!!

Answers

The proportion is 6 parts tomato: 2 parts bell pepper

To solve:

6    x
-- = --
2   1.5

Cross multiply and divide

6(1.5)=2x
9=2x
9/2=2x/2
4.5=x

The answer is 4.5

I hope I helped! :)

Which equation results from taking the square root of both sides of (x – 9)2 = 81?

Answers

In the question "Which equation results from taking the square root of both sides of (x – 9)2 = 81?" The correct answer is x - 9 = +/- 9. Taking the square root of both sides of the equation (x - 9)^2 = 81 will give: sqrt(x - 9)^2 = sqrt(81) x - 9 = +/- 9 Solving the equation results in two equation: x - 9 = 9 and x - 9 = -9 x = 9 + 9 and x = -9 + 9 x = 18 and x = 0

Answer:

Step-by-step explanation:

Find the unknown side length, x. Write your answer in simplest radical form. A. 15 B. 11 square root 2 C. 2 square root 121 D. 15 square root 5

Answers

We have two right isosceles triangles. Hypotenuse of that triangle is a √(2) or you can use the Pythagorean theorem: 11² + 11² = c²
121 + 121 = c²
242 =c²          c= √(242)= √(121*2)=11 √(2) Answer is the same: B) 11 square root 2

Answer:

B

Step-by-step explanation:

1. What is the equation of the line that goes through the point and is parallel to the line represented by the equation below?y=-5/6x+3

A. y=-5/6x+4
B. y=-5/6x-6
C. y=-5/6x-4
D. y=-5/6x+6

Which equation produces a line that is perpendicular to the line represented by the function below?
y=2/5x+9

A. 5x+2y=4
B. 2x-5y=8
C. 5x+2y=-3
D.2x+5y=-7

What is the slope of the line that is parallel to the line represented by the equation below?
4x-5y+-1

A 4/5
B -4/5
C 5/4
D -5/4

Answers

Answer:

1. Missing the point - unanswerable

2. A and C

3. A

Step-by-step explanation:

Recall the slope of a line is parallel if the same slope  and perpendicular if it is the negative reciprocal.

For number 1, each equation has the same slope as the function and will be parallel. Without the point, you cannot determine which one.

For number 2, find an equation that has slope -5/2. Both A and C have this property when converted to slope intercept form.

5x+2y=4                     5x+2y = -3

2y=4-5x                      2y= -3-5x

y=2-5/2 x                    y=-3/2 -5/2 x

For number 3, the slope will be the same as the equation for parallel. Convert the equation 4x-5y=-1 to find the slope.

4x-5y=-1

-5y = -1-4x

y=1/5 + 4/5 x

A is the solution.
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