MATHEMATICS HIGH SCHOOL

Simplify the radical expression(8+√11)(8-√11)

A.53
B.75+16√11
C.-57
D.64+√11

Answers

Answer 1
Answer: (8 + √11)(8 - √11)
8^2 - √11^2
64 - √11^2
64 - 11
53

The answer is: 53.
Answer 2
Answer: (8 + root11)(8 - root11) =
64 - root11 + root11 - 11 =
64 - 11 = 53

Answer A.

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There are 6 cakes in a box. The box and cakes weigh 250 grams altogether. The box weighs 22 grams. Each cake weights the same. What does each cake weigh

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Chris plans to mulch the border surrounding a rectangular garden in his backyard. If the length, l, of the garden (excluding its border) is 3 more than twice its width, w, and the width of the border is , which function represents the area, A, to be mulched in terms of w?

Answers

Answer: A = 6w+6

Step-by-step explanation:

Hi, since the length (L) of the rectangular garden is equal to 3 more than twice its width: we have to multiply the width (w) by two , and add 3.

Mathematically speaking:

L = 2w+3

The area (A) of a rectangle is equal to:

A = 2L +2w

So, replacing the value of L by (2w+3)

A = 2 (2w+3) +2w

Simplifying

A = 2(2w) + 2 (3) +2w

A = 4w+6+2w

A = 6w+6

PLEASE HELP!!! This is due today and I don’t understand can someone please tell me.

Answers

Answer:

the answer would be 135 meters

Step-by-step explanation:

If, to scale on a map, 1 centimeter is 3.5 meters, them 2 centimeters is 7 meters. so on and so forth until 30. 30 (centimeters) times 3.5 (meters) is 135. hope this helped!!!!! reply if this doesn't make sense

What is the sum of the quotients of 25x^2/5x and the quotient of 8x^2/x

Answers

If you would like to solve (25 * x^2) / (5 * x) + (8 * x^2) / x, you can calculate this using the following steps:

(25 * x^2) / (5 * x) + (8 * x^2) / x = 5 * x + 8 * x = 13 * x

The correct result would be 13 * x.

Please help me!! 1. In the equation y = 25x, what is the constant of variation?


A. 25
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D. Undefined


2. In the equation of y = 25x, the number 25 also represents what?


A Rate of change
B the y - intercept
C the x-intercept

In the equation y = -4x, what is the constant of variation?

A. 4
B. zero
C. -4
D. undefined

4. The value of y varies directly with x and the constant of variation is 5. What is the value of x when y = 100? *
25
95
4
20


5. The value of y varies directly with x and the constant of variation is 13. What is the value of y when x = 6? *
A. 78
B. 2.16
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The height of a stack of boxes varies directly with the number of boxes. A stack of 10 boxes is the 20 feet high. How tall is a stack of 18 boxes? *
9 feet
5 feet
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Perry's pay is in direct variation to the hours she works. Perry earns $84 for 14 hours. How much will she earn for 24 hours? *
A. $ 144
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Submit

Answers

Answer:

1. 25

2. Rate of Change

3. zero

4. 20

5. 2.16

6. 36ft

7. $144

Hope this helps

I dont know if all of these are right if not let me know

Answer:

1. Since the equation can be written in the form y=kx y = k x , y varies directly with x and k . The constant of variation, y , is 5 .

Step-by-step explanation:

Answer question "11" please!!

Answers

5(7)^2x = 1650
7^2x = 330
2x log7 = log330
2x = log330/log7
x = (log330/log7)/2
x = 1.49
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