Write and solve an equation to find the value of the variable.

Mathematics

1 answer:

IrinaK [193]3 years ago

5 0

I'm sure the answer is 7.1 X 6 - (5.2 + 8.3 + 8.5 + 7.7 + 7.8) = 5.1

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If h(x) = 6 - X, what is the value of (h*h)(10)?

Vikentia [17]

The value of $\bold{ h(h(10))=10}$

Solution:

Given: $h(x) = 6 - x$

To find: The value of (h*h)(10)

We know that, $(h*h)(x)=h(h(x))$

which is,

$\Rightarrow h(h(x))=6-(6-x)=x$

On solving we get,

$\Rightarrow6-6+x=x$

So, for x = 10 it will be,

$h(h(10))=10$

Hence, the required value is 10.

5 0

3 years ago

The volume of a cube decreases at a rate of 0.5ft cubed per minute. What is the rate of change of the side length when the side

DENIUS [597]

The solution to the problem is as follows:

a cube has sides s

V = s^3 ---> differentiating

dV/dt = 3s^2 * ds/dt

0.5 ft^3 / min = 3 * (12ft)^2 * ds/dt

(1/2) ft^3 / min = 3 * 144 ft^2 * ds/dt

(144/6) ft^3 / ( ft^2 min ) = ds/dt

24 ft / min = ds/dt

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

6 0

4 years ago

Read 2 more answers

Find the roots 7x^2 + 46 = 32

Reika [66]

Answer:

i $\sqrt{2}$ (or no solution if you haven't learned about imaginary numbers yet)

Step-by-step explanation:

The first thing you want to do is isolate x, or get x alone.

7x²+46=32

=> 7x²+46-46=32-46

=>7x²=-14

=>7x²÷7=-14÷7

=>x²=-2

If you have learned about imaginary numbers read on. If not, you have to realize that squaring any number can't result in a negative number. This means that there is no solution.

If you have learned about imaginary numbers, read on.

Now that you have x^2=-2, you can take the square root of both sides.

x= $\sqrt{-2}$