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alisha [4.7K]
3 years ago
11

Simplify this expression. 3x2(7x2 − 9)

Mathematics
1 answer:
kirill115 [55]3 years ago
4 0
<span>3x2(7x2 − 9)
Multiply 3x^2 by 7x^2 and -9(Use distributive property)
Final Answer: D.) 21x^4 - 27x^2</span>
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A gallon of gasoline cost 2.96. Your car has a 25 gallon gas tank and can travel 28.8 miles on each gallon of gasoline. How much
geniusboy [140]
<h2>Greetings!</h2>

Answer:

It would cost 47.36

Step-by-step explanation:

First, you need to find out how many gallons are needed to fill the tank. To do this, simply multiply 25 by the fraction that is how much is already in there:

25 x \frac{3}{8} = 9.375

So that means that there is 9.375 gallons already in the tank. To find the amount needed to fill the tank:

25 - 9.375 = 15.625

So 15.625 gallons are needed, rounded up to 16 gallons because you cannot get a decimal value of gallons.

That means that 16 x the price = the amount to fill the tank:

16 x 2.96 = 47.36

So it would cost 47.36 to fill the tank!


<h2>Hope this helps!</h2>
4 0
4 years ago
What is another way to write 0.7?
SVEN [57.7K]
7/10. Because 0.7 equals 70% . As a fraction it would be 70/100. Simplify, and you get 7/10. 
8 0
4 years ago
What is Derricka's goal, in miles, for the total distance she will swim on Monday, Tuesday, and Wednesday? Show your work.
denpristay [2]

Answer:

there is no backgroung information?

Step-by-step explanation:

3 0
3 years ago
I need help with both please no links!
nlexa [21]

Answer:

The first one- 24, The second one-B

Step-by-step explanation:

The first one-Top corner=110, 110+46=156, 180-156=24

The other one-I have no clue how to explain it

4 0
3 years ago
What is 9 3/4 as a percent?
masya89 [10]

Answer:

9 3/4 = 975%

Step-by-step explanation:

5 0
3 years ago
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