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3 years ago

Please help me with this problem

Mathematics

2 answers:

Mila [183]3 years ago

7 0

Answer:

C P(v) = 2(v+7)

Step-by-step explanation:

To find P(v), we need to take the inverse of P^-1 (v)

y = 1/2 v-7

Exchange y and v

v = 1/2 y-7

Solve for y

Add 7 to each side

v+7 = 1/2 y -7+7

v+7 = 1/2y

Multiply each side by 2

2(v+7) = 1/2 y*2

2(v+7) = y

P(v) = 2(v+7)

jekas [21]3 years ago

3 0

Answer:

C $P(v)=2(v+7)$

Step-by-step explanation:

Lets say that $P(v)=y$ for simplicity.

In order to find the inverse of a function, we must switch the location of the variable, v, and y. Then we have to solve for y.

As we are already given the inverse, doing the same process again will give us the original function.

First we can set up the equation

$y=\frac{1}{2} v-7$

Next we can switch the location of the variables

$v=\frac{1}{2} y-7$

Now we can solve for y

$v=\frac{1}{2} y-7\\\\v+7=\frac{1}{2} y\\\\y=2(v+7)\\\\P(v)=2(v+7)$

This gives us the function

$P(v)=2(v+7)$

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Find the area of the figure.

seraphim [82]

$\huge \bf༆ Answer ༄$

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7 0

2 years ago

Fofino [41]

Answer:

. We assume, that the number 260 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 260 is 100%, so we can write it down as 260=100%.

4. We know, that x is 6.75% of the output value, so we can write it down as x=6.75%.

5. Now we have two simple equations:

1) 260=100%

2) x=6.75%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

260/x=100%/6.75%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 6.75% of 260

260/x=100/6.75

(260/x)*x=(100/6.75)*x - we multiply both sides of the equation by x

260=14.814814814815*x - we divide both sides of the equation by (14.814814814815) to get x

260/14.814814814815=x

17.55=x

x=17.55

now we have:

6.75% of 260=17.55

Step-by-step explanation:

5 0

3 years ago

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aleksklad [387]

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The quadratic function h(t) = −16t² + 84t + 72, shows that the person throws the ball from on top of a 72 feet building at a velocity of 84 feet/second.

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Dmitry_Shevchenko [17]

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