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jonny [76]
3 years ago
5

-2-(-7)= help me pls.

Mathematics
2 answers:
olchik [2.2K]3 years ago
6 0

Answer:

- 2 - (  - 7) \\  =  - 2 + 7 \\  = 5

Tju [1.3M]3 years ago
4 0

Answer:

5

Step-by-step explanation:

-2-(-7)

-2 + 7

= 5

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A submarine is descending to examine the seafloor `2,100` ft below the surface. It takes the submarine `2` hours to make this de
aliya0001 [1]

Answer:

y / x

Step-by-step explanation:

That would produce how many feet are covered in each hour. You'd just need to plug in the numbers so to speak.

7 0
3 years ago
Find the inverse of the given function
xenn [34]

For this case, we must find the inverse of the following function:

f (x) = \frac {5x + 1} {- x + 7}\\x\neq 7

To find the inverse we follow the steps below:

y = \frac {5x + 1} {- x + 7}

We rewrite the denominator:

y = \frac {5x + 1} {- (x-7)}\\y = - \frac {5x + 1} {(x-7)}

We exchange variables:

x = - \frac{5y + 1} {(y-7)}

We solve for y:

We multiply on both sides of the equation by (y-7)

x (y-7) = - 5y-1\\xy-7x = -5y-1

We subtract xy on both sides of the equation:

-7x = -5y-1-xy

We add 1 to both sides:

-7x + 1 = -5y-xy

We factor for y:

-7x + 1 = y (-5-x)

We divide both sides by (-5-x):

y = \frac {-7x + 1} {- 5-x}

So, we have:

f ^ {- 1} (x) = \frac {-7x + 1} {- 5-x}

Answer:

f ^ {- 1} (x) = \frac {-7x + 1} {- 5-x}

x\neq -5

3 0
4 years ago
I'LL MARK BRAINLIEST !!!
V125BC [204]

Answer:

it is 5 if im not mistaken

5 0
3 years ago
An item that was selling for $72.00 was reduced to $60.00. Find the percent decrease in price. Show all your work.
dsp73
The formula to figure out the percentage increase or decrease is: 
<span>(new - old) / old * 100% </span>

<span>new = 60 </span>
<span>old = 72 </span>

<span>(60 - 72) / 72 * 100% </span>
<span>-12 / 72 * 100% </span>
<span>= -1/6 * 100% </span>
<span>= -0.1666... * 100% </span>
<span>≈ -16.667% </span>

<span>Because it is negative, that's a decrease. </span>

<span>Answer: </span>
<span>A decrease of about 16.7%</span>
8 0
4 years ago
What's 352 divided by 40 in a step by step explanation?
frozen [14]

Answer:

352 divided by 40 is 88

Step-by-step explanation:

lets put this in another form 352/40 so now you have 352 uh cheetos. You wanna share with your lunch table so you divide them into 40 groups. each person gets 88.

7 0
3 years ago
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