MATHEMATICS MIDDLE SCHOOL

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F is inversely proportional to d squared
When F=8 d=6

Work out d (positive value rounded to 2 DP) when F=9

Answers

Answer 1
Answer:

Answer:

d ≈ 5.66

Step-by-step explanation:

given that F varies inversely with d squared, then the equation connecting them is

F = ← k is the constant of variation

to find k use the condition when F = 8, d = 6

k = Fd² = 8 × 36 = 288, hence

F =

when F = 9, then

9 = ← multiply both sides by d²

9d² = 288 ( divide both sides by 9 )

d² = 32 ( take the square root of both sides )

d = ± , hence

d ≈ 5.66 ← positive value only



Related Questions

MIDDLE SCHOOL

For apples 2 lb for $3.38 unite rate___ cost___

Answers

Answer:

1.69

Step-by-step explanation:

well to find out the unit rate that would be a pound now we need to find out how much it would cost for 1 lb which would be 3.38 / 2 which would be 1.69 as your answer

Answer:

$1.69 per pound

Step-by-step explanation:

3.38/2=1.69

MIDDLE SCHOOL

How many coulombs pass a point in 0.1 seconds when the current is 1.5 A

Answers

The coulomb is the standard unit of electric charge.

0.15 coulombs pass a point in 0.1 seconds when the current is 1.5A.

What is a coulomb?

The coulomb is the standard unit of electric charge.

One coulomb is equal to the amount of charge from a current of one ampere flowing for one second.

We have,

C = As ____(1)

C = coulomb

A = current in amperes

s = time in seconds

t = 0.1 seconds

A = 1.5A

From (1) we get,

C = As

C = 1.5 x 0.1

C = 0.15

Thus, 0.15 coulombs pass a point in 0.1 seconds when the current is 1.5A.

Learn more about electric charge here:

brainly.com/question/9194793

#SPJ2

Answer:

A coulomb is a measure of charge and current is the rate of flow of charge.

There is a formula linking the three quantities (charge=Q; T=time; I=current):

Q=I x T

1.5A x 0.1s= 0.15C

HIGH SCHOOL

The ratio 21:28 in simplest form is

Answers

3:4 will be the correct answer in simplist form


21 and 28 are both divisible by 7
So 21/7=3
And 28/7=4
So the ratio in simplest form is 3:4
HIGH SCHOOL

Which of the following numbers would be an outlier if added to the data below? 372, 351, 299, 406, 387, 315, 364,308

Answers

Answer:

299 will be the outlier

Step-by-step explanation:

If u were to add em all plus the outlier, it will be 2802, then divide it by 8 to get 350.25. I we did it without the outlier it will be 2503 then divide by 7 is 357.57. S therefore 299 is the outlier.

Your welcome.

MIDDLE SCHOOL

Solve 9(4g + 9) using the distributive property. Can someone help me with this and show their work?

Answers

Answer:

36g + 81

Step-by-step explanation:

9 is your multiplier.  Multiply each of the two terms inside the parentheses by this 9, one at a time:  

36g + 81

Answer:

9 (4g + 9) = 9*(4g) + 9* (9) = 36g + 81

Step-by-step explanation:

HIGH SCHOOL

A swimming pool in the shape of a rectangular prism is 30 feet long , 15 1/2 feet wide , and 6 feet deep. How much water could the swimming pool hold

Answers

Answer:

The Swimming Pool can hold 2,790 of water.

Step-by-step explanation:

The amount of water a rectangular prism can hold is measured by the volume it has. Volume is calculated with the following formula.

In which L is the length, W is the width, and H is the height of the rectangular prism. Given that we have all this information, we can plug it into the formula to get the volume.

So the Rectangular Prism Swimming Pool has a volume of 2,790 meaning it can hold that amount in water.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

To find how much water that can fit, you need to find the volume of the pool by multiplying the length by the width by the deepness.

30 × 15.5 × 6 = 2790

The pool can hold 2790 cubic feet of water
MIDDLE SCHOOL

40.79 divided by 6.7

Answers

The answer would be 6.08 consider the numbers behind the decimals as they will be helpful to know where to put your decimal point in your answer. Hope this helps!

The final answer would be 5.16

ava dis u? haha

MIDDLE SCHOOL

What value of x is in the solution set of 2x – 3 > 11 – 5x?

Answers

Simplify the inequality.

2x - 3 > 11 - 5x
2x > 14 - 5x 14 2 2}
HIGH SCHOOL

Simplify -4+|6-8| and explain how you got it

Answers

It’s -2 because The absolute value of 6-8 is a positive two. Positive 2+ (-4)= -2
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