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Rina8888 [55]
3 years ago
8

Can you please help me with this

Mathematics
1 answer:
GarryVolchara [31]3 years ago
6 0

Answer:

the first one

Step-by-step explanation:

7 - (-5) - 1 = 7 + 5 - 1 = 11

3 + 9 - 18 = -6

4 + (-14) - 5 = 4 - 14 - 5 = -15

8 - 12 - (-4) = 8 - 12 + 4 = 0

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17 less than h equals to 42. Write as an equation. PLEASE HELP WITHIN THE five minutes!!!
olga nikolaevna [1]
17<h=42. 
 Not sure if you need to know, but h=59.
5 0
3 years ago
What is the y-intercept of the function f(x) =-2/9x + 1/3?<br> -2/9<br> -1/3<br> 1/3<br> 2/9
hoa [83]

Answer:

1/3 is the y-intercept of the function

6 0
4 years ago
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Can you answer number five for me PLEASE!
alekssr [168]

Answer:

Volume = 35 cubic cm

Step-by-step explanation:

V=whl=1·2·7=14

14 +

V=whl=3·1·7=21

21 + 14 = 35

5 0
3 years ago
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Hey, I would appreciate it if you can help me with these problems, been stuck on it for a few days
Makovka662 [10]

Answer:

Explained below.

Step-by-step explanation:

The formula for average rate of change is:

\frac{f(b) - f(a)}{b - a}

1. \frac{f(b) - f(a)}{b - a} = \frac{f(2) - f(1)}{2 - 1} =  \frac{100 - 40}{2 - 1} =  \frac{70}{1} = 70

2. \frac{f(b) - f(a)}{b - a} = \frac{f(4) - f(2)}{4 - 2} = \frac{180 -110}{4 - 2} = \frac{70}{2} = 35

3. \frac{f(b) - f(a)}{b - a} = \frac{f(8) - f(6)}{8 - 6} = \frac{350 -230}{8 - 6} = \frac{120}{2} = 60

4. \frac{f(b) - f(a)}{b - a} = \frac{f(10) - f(8)}{10 - 8} = \frac{390 -350}{10 - 8} = \frac{40}{2} = 20

5. Their average speed was the greatest during the first to second hour.

6. Their average speed was the least during the eight to tenth hours.

7. \frac{f(b) - f(a)}{b - a} = \frac{f(10) - f(1)}{10 - 1} = \frac{390 -40}{10 - 1} = \frac{350}{9} = 38.89 or 38.9

Hope that helps!

6 0
3 years ago
A. Use the composition to prove whether or not the functions are inverses of each other.
shtirl [24]

Here we need to find fog and gof, and they must be equal to x .

Let's check out fog

fog = f(g(x))

f(\frac{4x+1}{x})

Substituting the value of g(x) in f(x) for x, we will get

\frac{1}{\frac{4x+1}{x}-4}  =\frac{1}{\frac{4x+1-4x}{x}}=x

Domain

Here the input function is g(x), and the denominator should not be 0. So x should not be zero. Therefore, domain is

(-\infty,0)U(0, \infty)

Now let's check gof

gof = g(f(x))

Here we need to insert f(x) in g(x) for x, and on doing that , we will get

\frac{4(\frac{1}{x-4})+1}{\frac{1}{x-4}}   = \frac{4+x-4}{1}=x

Domain

Here the input function is f(x), and denominator should not be zero.

SO domain is

(- \infty,4)U(4, \infty)

Since fog = gof =x, so the given function are inverses of each other .

8 0
3 years ago
Read 2 more answers
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