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3 years ago

15

Find simple interest. The rate is an annual rate unless otherwise noted. Assume 365 days in a year and 30 days per month. $1,300

at 4.25% for a year

1 answer:

trapecia [35]3 years ago

4 0

Answer:

$55.25

1,300×0.0425=$55.25

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Simplify the following expression: <br><br><br><br> `{4x^{2}+16x}{2x+8}`

Kazeer [188]

Answer:

8x³+64x²+128x

Step-by-step explanation:

I can't type this so... the explanation is above, handwritten.(sorry for the bad handwriting)

8 0

4 years ago

Given the function f(x)=3x^2+2 is f^-1(x) a function

vova2212 [387]

Answer:

f^-1(x) is a function

Step-by-step explanation:

To get the inverse you replace f(x) with y, so you get y=3x^2+2. Then you switch your x and y to get x=3y^2+2. Now you want to solve for y, so you subtract two to get x-2=3y^2. You then divide both sides by 3 to get (x-2)/3=y^2. Finally you square root both sides to get y=√((x-2)/3). Now you get that f^-1(x)=√((x-2)/3). When you graph it you can see that the graph passes the vertical line test, so f^-1(x) is a function.

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3 years ago

I don’t get these at alllll

djyliett [7]

Answer:

2

Step-by-step explanation:

Just think of f(2) as x, which is part of an ordered pair. Go to where x=2 on the graph, and search for y.

In this case, f(2)=2 because when x=2, y=2.

6 0

3 years ago

Read 2 more answers

Using cross multiplication, which of the following is the solution to 7/3x = 2/(x+5)?

andrey2020 [161]

Step-by-step explanation:

Hey, there!!

$\frac{7}{3x} = \frac{2}{x + 5}$

By cross multiplication,

$7.(x + 5) = 2 \times 3x$

$7x + 35 = 6x$

$7x - 6x = -35$

Therefore, x= -35.

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

6 0

4 years ago

Read 2 more answers

John wrote the binomial 2x - 7. Sus wrote the binomial 3x + 5 . The teacher told the two to find the product. What is the produc

klemol [59]

Answer:

x=-12

Step-by-step explanation:

2x-7=3x+5

+7 to both sides

this leaves you with 2x=3x+12

-3x from both sides

this leaves -x=12

switch the symbols

this makes it x=-12

5 0

3 years ago