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3 years ago

F(x)=x+7 I need to find the inverse

Mathematics

1 answer:

horrorfan [7]3 years ago

6 0

Y=x-7

Y-x=-7

-x=-y-7

X=y+7

So the inverse is
The inverse is y=x+7

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The sum of three consecutive numbers is 117. What is the first of the three numbers?

Harrizon [31]

38+39+40 = 117.

So the first of the three numbers is 38.

3 0

4 years ago

Split 18 into the ratio 1:2<br>

Eva8 [605]

Answer:

6:12

Step-by-step explanation:

Add 1+2=3

18/3=6

6x1=6

6x2=12

Out it back in the ratio

6:12

8 0

3 years ago

I NEED HELP PLEASE, THANK YOU!

bixtya [17]

Answer:

$\sqrt{37}$

Step-by-step explanation:

To find the distance between a point (m, n ) and the line

Ax + By + C = 0

d = $\frac{|Am +Bn+C|}{\sqrt{A^2+B^2} }$

Here (m, n) = (6, 2) and rearranging the line

6x - y + 3 = 0 ← in general form

with A = 6, B = - 1 and C = 3 , then

d = $\frac{|6(6)-1(2)+3|}{\sqrt{6^2+(-1)^2} }$

= $\frac{|36-2+3|}{\sqrt{36+1} }$

= $\frac{37}{\sqrt{37} }$

Rationalise the denominator by multiplying numerator/ denominator by $\sqrt{37}$

= $\frac{37}{\sqrt{37} }$ × $\frac{\sqrt{37} }{\sqrt{37} }$

= $\frac{37\sqrt{37} }{37}$ ← cancel 37 on numerator/ denominator

= $\sqrt{37}$

5 0

3 years ago

Read 2 more answers

Express the form 1: n <br><br> 5:20

Stella [2.4K]

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5 : 20

Divide both sides by 5 to get the answer

5/5 = 1

20/5 = 4

Thus, the answer is 1 : 4

Have A Nice Day ❤

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- Ally ✧

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8 0

3 years ago

Please help asap! I will mark brainliest for correct answer!!

solmaris [256]

Answer: Do the math, the positive solution

t = 5.0495 seconds (If it's wrong sorry, I havent done a problem like this one in awhile!)

Step-by-step explanation:

6 0

2 years ago