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iren2701 [21]
3 years ago
14

Please help me, I need help

Mathematics
2 answers:
marta [7]3 years ago
8 0

Answer:

The answer is f(g(7)) is 114

Dovator [93]3 years ago
7 0

Answer:

Step-by-step explanation:

g(7)= 7^2 - 3(7)= 49 - 21 = 28

f(28)= 4(28) + 2 = 112 + 2= 114

C is the answer

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Somebody help !!!!!!!!!!!!!!!!
alexgriva [62]

Hey there! I'm happy to help!

The equation y=0.5x simply means that Joseph is hiking 0.5 miles every hour. This is because the x value is the independent variable or the thing you change, which in this case is the time you take hiking. The distance, the y-value, is dependent on that time.

Now, let's look at Kelly's graph. This graph isn't a grid, so we will have to eyeball some of the numbers on the graph. It appears that after 10 hours, Kelly has traveled eight miles. This is because if you go up from the 10 and meet the line and then go to the left. you will be about at the line right below the 10 on the y-axis, and if you count the lines, you will see that we are counting by 2, so it has to be eight.

So, we see that Kelly takes 10 hours to go eight miles. We know that Joseph's distance is half of his time (4 hours would be 2 miles, 6 hours would be 3 hours, etc.)

So, if we say that Joseph hikes for ten hours, he will have hiked five miles as that is half of ten. We see, though, that Kelly made it eight hours in that time, so Kelly is going faster here.

Have a wonderful day and keep on learning! :D

8 0
3 years ago
Read 2 more answers
Car A gets 640 miles on 20 gallons. Car B gets 390 miles on 13 gallons. Which car gets better mileage? Write the better mileage
ElenaW [278]

Answer:

car A gets 32 miles per gallon car B gets 30 miles per gallon I hope this helps

6 0
3 years ago
Read 2 more answers
I bought a 5-kilogram can of peanuts for $4.50. What is the unit price?
aev [14]
4.50 ÷ 5 = 0.9

The unit price is $0.9 or ¢9.
8 0
4 years ago
Pls answer this question
nika2105 [10]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

Apply the Keep Flip Change rule here

1/4 has been kept the same

The sign has been changed

The other fraction needs to be flipped

Thus, z = -2/7

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

5 0
3 years ago
A bag of candy contains 300 pieces of which 28% are red. How many pieces are not red? *​
kap26 [50]

Answer:

The answer is: 84

Step-by-step explanation:

Trust me

good luck

4 0
2 years ago
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