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3 years ago

8

As student received a 75% on an exam. If there were 20 questions on the exam which ratio would show the number of questions answ

ered correctly

2 answers:

sergejj [24]3 years ago

7 0

75% times 20=15 so he got 15 correct

Luda [366]3 years ago

7 0

The answer is 15:20 i believe

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Which of the following is(are) the solution(s) to |5x+2|=8 ?

slega [8]

Answer:

x = 6/5 or x = -2

Step-by-step explanation:

We need to solve:

|5x+2|=8

We know that |u|=a the u = a and u = -a

Now solving:

|5x+2|=8

5x +2 = 8 or 5x +2 = -8

5x = 8-2 or 5x = -8-2

5x = 6 or 5x = -10

x = 6/5 or x = -10/5

x = 6/5 or x = -2

So, x = 6/5 or x = -2

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3 years ago

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faust18 [17]

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4 years ago

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mamaluj [8]

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3 years ago

What is the inverse of f(x)=(x+6)2 for x≥–6 where function g is the inverse of function f? g(x)=x√−6, x≥0 g(x)=x−6−−−−√, x≥6 g(x

rosijanka [135]

Answer:

$g(x)=\sqrt{x}-6$ , x>=0

Step-by-step explanation:

$f(x)=(x+6)^2$

To find the inverse function , replace f(x) by y

$y=(x+6)^2$

Replace x with y and y with x

$x=(y+6)^2$

Solve the equation for y

take square root on both sides

$+\sqrt{x} =y+6$

Now subtract 6 from both sides

$+\sqrt{x}-6=y$

replace y with g(x)

$g(x)=\sqrt{x}-6$

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3 years ago

X + 8 < 10<br><br> Please help

taurus [48]

In this question, you're solving the inequality by solving for x.

Solve for x:

x + 8 < 10

<em>subtract 8 from both sides</em>

x < 2

Answer:

x < 2

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4 years ago