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sveticcg [70]
1 year ago
8

Evaluate the expression below. 15 ÷ (5 - 2) + 4 =

Mathematics
1 answer:
lana [24]1 year ago
3 0

Answer:

Step-by-step explanation:

This is an order of operations question. First in PEMDOS you want to do your parenthesis, turn (5-2) into 3,

15 ÷ 3 + 4 

Then do your divison, turning 15 ÷ 3 into 5

5 + 4 

Then finish with 5 + 4

The answer is 9



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The number 88 is 44% of what number
castortr0y [4]

Answer:

Your answer is 38.72

Step-by-step explanation: I did not know what it was so i googled it lol. this one was tough! hope it is correct! it is google so i bet it is :)

3 0
3 years ago
Suppose j varies jointly with g and​ v, and j=2 when g=4 and v=3. <br> Find j when g=8 and v=9.
vladimir2022 [97]

Answer:

j=12

Step-by-step explanation:

we know that

In a join variation, If j varies jointly with respect to g and v, the equation will be of the form j = kgv

where k is a constant

step 1

Find the value of k

we have

j=2,g=4,v=3

substitute and solve for k

2 = k(4)(3)

2 = 12k

k=\frac{1}{6}

The equation is equal to

j=\frac{1}{6}gv

step 2

Find the value of j when g=8,v=9

substitute the values in the equation and solve for j

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3 0
2 years ago
F(x)=2x+1/x-1 then f^-1(1)​
olasank [31]

Answer:

  • f⁻¹(x) = (x + 1) / (x - 2)
  • f⁻¹(1 ) = - 2

Step-by-step explanation:

<u>Given function:</u>

  • f(x) = (2x + 1) / (x - 1)

<u>Find its inverse, substitute x with y and f(x) with x, solve for y:</u>

  • x = (2y + 1) / (y - 1)
  • x(y - 1) = 2y + 1
  • xy - x = 2y + 1
  • xy - 2y = x + 1
  • y(x - 2) = x + 1
  • y = (x + 1) / (x - 2)

<u>Substitute y with f⁻¹(x):</u>

  • f⁻¹(x) = (x + 1) / (x - 2)

<u>Find  f⁻¹(1 ):</u>

  • f⁻¹(1 ) = ( 1 + 1) / (1 - 2) = 2 / - 1 = - 2
6 0
2 years ago
What is [2times6]-7+92+45<br> divided by 5
Vesna [10]
\frac{(2 \times 6) - 7 + 92 + 45 }{5} =  \frac{12 - 7 + 92 + 45}{4} =  \frac{142}{5} = 28.4

Hope that helps :)
7 0
3 years ago
Which statements must be true it says check alll that apply ?
Zinaida [17]
The statements that must be true are c,e,f, but these are the statements that I think are correct
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