Please help me
I don't understand the first question can you explain​

Answer:

275

Step-by-step explanation:

g(x) = x²-7 ⇒ g(8) = 8² - 7 =57

f(x) = 5x -10 ⇒ f(g(8)) = f(57) = 5.57-10 = 275

Answer:

275

Step-by-step explanation:

First, find g(8).

g(x) = x^2 - 7

g(8) = 8^2 - 7

g(8) = 64 - 7

g(8) = 57

Now find f(g(8)).

f(x) = 5x - 20

f(g(8)) = f(57)

f(57) = 5(57) - 10

f(57) = 285 - 10

f(57) = 275

Answer: f(g(8)) = 275

Answer:

c = 6H

Step-by-step explanation:

This is a question showing that there is a direct variation between the cost, c, and hours, H.

So that;

c ∝ H

∝ is the proportionality sign

c = kH

where k is a constant of proportionality.

Thus, given that c = $30 and H = 5 hours, then;

30 = k x 5

30 = 5k

Divide both sides by 5 to have;

k = [tex]\frac{30}{5}[/tex]

k = 6

For this situation, since k = 6; then,

c = 6H

Answer:

58,927 converted to scientific notation is 5.8927  x 10^4 (10 to the fourth power

Step-by-step explanation:

Yes thats it bru just submit

Answer:

1/5

Step-by-step explanation:

Total Number of Marbles in the bag = 15

The probability of randomly selecting a green marble is 1/3

The probability of randomly selecting a green marble, replacing it, and then randomly selecting a red marble = 1/15

The probability of randomly selecting a green marble, replacing it, and then randomly selecting a red marble is calculated as

The probability of randomly selecting a green marble × The probability of randomly selecting a red marble

Hence:

1/15 = 1/3 × R

1/15 = R/3

Cross Multiply

R × 15 = 1 × 3

R= 3/15

R= 1/5

Hence, the probability of randomly selecting a red marble is 1/5

Answer:

A and D are the only ones correct

Step-by-step explanation:

I did it

Answer: A D

Step-by-step explanation:

There u go

Answer:

Answer: 5.64 centimeters more rain fell in Dubaku's town than in Elliot's town. Step-by-step explanation: Amount of rainfall in Dubaku's hometown is 8 centimeters, amount of rainfall in Elliot's hometown is 2.36 centimeters and the amount of rainfall in Alperen's hometown is 15.19 centimeters.

Step-by-step explanation:

Answer:

x = 4, (-2/3)

Step-by-step explanation:

3(x^2) – 10x = 8

3(x^2) – 10x - 8 = 0

(3x + 2)(x - 4) = 0

(3x + 2) = 0

3x = -2

x = (-2/3)

(x - 4) = 0

x = 4

Answer:

x = -2/3, 4

Step-by-step explanation:

move all terms to one side

3x^2 - 10x - 8 = 0

split the terms in 3x^2-10x-8 into two terms

3x^2+2x-12x-8=0

factor out common terms in first to and last to

x(3+2)-4(3x+2) =0

factor out common term 3x+2

(3x+2) (x-4)=0

solve for x

x=-2/3,4

Answer:

-1/2

Step-by-step explanation:

-3--2=-1 -3--5=2

-1/2

Answer:

28

Step-by-step explanation: pls mark brainliest

Answer:

$18.75 the difference is $56.25

Step-by-step explanation:

Answer:

that is not a function

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given the expression [tex]\left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right] \cdot \left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right]^{-1}[/tex]

According to indices:

[tex]a^{-1} = \frac{1}{a}[/tex]

Applying this to the question:

[tex]\left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right]^{-1} = \frac{1}\left\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right}[/tex]

Hence:

[tex]\left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right] \cdot \left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right]^{-1} = \frac{\left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right]}{\left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right]} \\\\\left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right] \cdot \left[\left(\frac{2}{5}\right)^{12} \left(\frac{3}{16}\right)^{-8}\right]^{-1} = 1[/tex]

Hence the right answer is 1

Answer:

= 1

Step-by-step explanation:

Answer:

The answer is D) 3ft, 4ft, 4ft.

Step-by-step explanation:

You can find the answer by adding two of the three measures, and if the answer is greater than the third measure then you will be able to make a triangle. Be sure to check each of the measures just in case.

Answer:

D

Step-by-step explanation:

trust the process

Answer:

24 :)

Step-by-step explanation:

12 + 12 = 24

Answer:

24

Step-by-step explanation:

Answer: -3

Step-by-step explanation:

6 times 3 is 18, so y is -3

Answer:

its the  firs one

Step-by-step explanation:

Answer:

x = 600 and 1.94!=0

Step-by-step explanation:

Answer:

X = 600

Step-by-step explanation:

This is the answer because:

1) All you have to do is just isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helps! :D

21

"For whatever reasons, Ray, call it . . . Fate, Call it Luck, Call it Karma. I believe everything happens for a reason. I believe that we were destined to get thrown out of this dump."-Dr. Peter Venkman GhostBusters

Answer:

1st part x= -1+y

the 2nd..the value of 27-3=8 is 16=8 so the value is false. really hope this helps.

Answer:

The answer is A.

Step-by-step explanation:

Just answered the question

Answer: g

Step-by-step explanation:

4348x.065=282.62

282.62x5=1413.1

282.62x3=847.86

1413.1-847.86=565.24

Compared to a 3-year loan he has to pay G. $565.24 more for a 5-year loan.

We know simple interest (SI) is given by SI = (p×r×t)/100, where

p = principle, r = rate in percentage, and t = time in years.

Given, Mr. Fitch needs to get a loan to replace the air-conditioning system.

He can apply for a 5- year loan or a 3-year loan. Both loans involve simple interest with an annual interest rate of 6.5%.

Here, p = $4,348.00, r = 6.5%, t₃ = 3 and t₅ = 5.

For, t₃.

SI₃ = (4348×6.5×3)/100.

SI₃ = $847.86.

For, t₅.

SI₅ = (4348×6.5×5)/100.

SI₅ = $1,413.1.

So, the amount of interest he will have to pay more is (SI₅ - SI₃).

=  $(1,413.1 - 847.86).

= $565.24.

learn more about simple interests here :

https://brainly.com/question/11564235

$SPJ2

Answer:

No, it's incorrect.

Step-by-step explanation:

The answer should be y = -10x + 7