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3 years ago

Find the perimeter of -3x+4 2x+7

1 answer:

5 0

Assuming that (-3x + 4) and (2x + 7) are two legs of a rectangle, you can find the perimeter like this: P = 2*length + 2*width.

P = 2*(-3x + 4) + 2*(2x + 7)
P = -6x + 8 + 4x + 14
P = -2x + 22

Hope this helps! :)

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Suppose Georgette buys 400 shares of Google at $250 a share. She sells them at $350 a share. What is her capital gain?

aliina [53]

That would be A. Hope this helped. ;)

4 0

4 years ago

Read 2 more answers

Joshua orders pictures from a photographer. Each picture costs $12.75. A one-time shipping fee of $3.25 is added to the cost of

Alik [6]

Answer:

6 pictures

Step-by-step explanation:

Let x be the number of pictures that was bought

Let y be the total amount of money collected for the picture

y= 3.25+12.75

3.25+12.75x= 79.75

Therefore x can be calculated as follows

12.75x= 79.75-3.25

12.75x= 76.5

x= 76.5/12.75

= 6

Hence Joshua ordered 6 pictures

5 0

3 years ago

7d – 4d – 3d – 5 = 6d

vazorg [7]

Answer:

$d = -\frac{5}{6}$

Step-by-step explanation:

7d – 4d – 3d – 5 = 6d

3d - 3d -5 = 6d

0 - 5 = 6d

-5 = 6d

-5/6 = 6d/6

d = $\frac{-5}{6}$

Hope this helps ^-^

4 0

3 years ago

Please help I need it done right now

Lina20 [59]

Use the way that kids use i.e trial and error method .

Solution:-

The set given by

$\\ \rm\longmapsto \left\{32+n,\dfrac{n}{8},\sqrt{n+225}\right\}$

Lets understand

See the first term any natural value will make it natural .

Come to 2nd one.

n should be a multiple of 8 to make it whole.

Come to third one

n should be a number which makes the sum a perfect square by which we get a natural no.We have to solve it w.r.t to 2nd one

Lets think

Nearest squares to 225 are 196 and 289

We can't take 196 as we have to take a positive one other wise it will come in terms of i.

Take 289

$\\ \rm\longmapsto n+225=289$

$\\ \rm\longmapsto n=289-225=64$

Its divisible by 8 .

Rewrite the set

$\\ \rm\longmapsto \left\{64+32,\dfrac{64}{8},\sqrt{225+64}\right\}$

$\\ \rm\longmapsto \left\{96,8,\sqrt{289}\right\}$

$\\ \rm\longmapsto \left\{96,8,17\right\}$

Hence n=64

8 0

3 years ago

What is the inverse of f(x) = 1/3 x +2

Elanso [62]

Answer:

The inverse of this function is f(x) = 3x - 6.

You can find the inverse of any function by switching the f(x) and x values. Once you've done that, solve for the new f(x). The result will be the inverse function. The step-by-step process is below.

f(x) = 1/3x + 2 ---> Switch f(x) and x values

x = 1/3f(x) + 2 ---> Subtract 2 from both sides

x - 2 = 1/3f(x) ----> Multiply both sides by 3

3(x - 2) = f(x) ----> Distribute the 3

3x - 6 = f(x) ----> Place in the proper order for formatting purposes

f(x) = 3x - 6

And that is your inverse function.

Step-by-step explanation:

7 0

3 years ago