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3 years ago

Help pls!! I appreciate it

Mathematics

1 answer:

beks73 [17]3 years ago

5 0

Answer:

4/3v + 4 = 8

Step-by-step explanation:

The second option is the correct one because you will combine the like terms first.

Hope this helps, thank you !!

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Evaluate 3(5 - 8) - 7 02. 0-16 0-7

Valentin [98]

Answer: -16

Step-by-step explanation:

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3 years ago

What is the mass in kilograms of a 100-lb person on earth ?

maksim [4K]

The answer would be 45.3592 killograms

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3 years ago

A wooden log 10 meters long is leaning against a vertical wall with its other end on the ground. The top end of the log is slidi

Andre45 [30]

Answer:

Step-by-step explanation:

This is a related rates problem from calculus using implicit differentiation. The main equation is Pythagorean's Theorem. Basically, what we are looking for is $\frac{dx}{dt}$ when y = 6 and $\frac{dy}{dt}=-2$ .

The equation for Pythagorean's Theorem is

$x^2+y^2=c^2$ where x and y are the legs and c is the hypotenuse. The length of the hypotenuse is 10, so when we find the derivative of this function with respect to time, and using implicit differentiation, we get:

$2x\frac{dx}{dt}+2y\frac{dy}{dt}=0$ and divide everything by 2 to simplify:

$x\frac{dx}{dt}+y\frac{dy}{dt}=0$ . Looking at that equation, it looks like we need a value for x, y, $\frac{dx}{dt}$ and $\frac{dy}{dt}$ .

Since we are looking for $\frac{dx}{dt}$ , that can be our only unknown and everything else has to have a value. So what do we know?

If we construct a right triangle with 10 as the hypotenuse and use 6 for y, we can solve for x (which is the only unknown we have, actually). Using Pythagorean's Theorem to solve for x:

$x^2+6^2=10^2$ and

$x^2+36=100$ and

$x^2=64$ so

x = 8.

NOW we can fill in the derivative and solve for $\frac{dx}{dt}$ .

Remember the derivative is

$x\frac{dx}{dt}+y\frac{dy}{dt}=0$ so

$8\frac{dx}{dt}+6(-2)=0$ and

$8\frac{dx}{dt}-12=0$ and

$8\frac{dx}{dt}=12$ so

$\frac{dx}{dt}=\frac{12}{8}=\frac{6}{4}=\frac{3}{2}=1.5 m/sec$

7 0

3 years ago

Read the excerpts from Team Moon and the NASA article. And only now—a solid, panic-stricken, gut-wrenching, heart-palpitating te

Nat2105 [25]

Answer:

where is the article

Step-by-step explanation:

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3 years ago

Read 2 more answers

Solve. 6y=192 a. -32 b. -18 c. 18 d. 32

fredd [130]

(the opposite of the multiplication of 6 is to divide each side by 6)

6y = 192

6y ÷ 6 = 192 ÷ 6

y = 192 ÷ 6

y = 32

The answer is D. 32

5 0

3 years ago

Help pls!! I appreciate it​

Help pls!! I appreciate it