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castortr0y [4]
3 years ago
7

Which expression represents eight times a number, v?

Mathematics
1 answer:
Trava [24]3 years ago
8 0

Answer:C. Easy

Step-by-step explanation:

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Solve for x. 8x2−3=2
gavmur [86]

8x^2 -3 = 2

add 3 to each side

8x^2 = 5

divide by 8

x^2 =5/8

take the square root of each side

x = +- sqrt (5/8)

7 0
3 years ago
Pine Bluff Middle School is having its annual Spring Fling dance, which will cost \$400$400dollar sign, 400. The student treasur
nikklg [1K]

The <em><u>correct answers</u></em> are:

The inequality is 75+4t ≥ 400, and they must sell at least 82 tickets.

Explanation:

t is the number of tickets sold. They start out with $75, so that is where our inequality begins. Each ticket is $4; this gives us the expression 4t. Together with the $75 carry over, we have 75+4t.

They must make at least $400 to pay for the dance. This means it must be more than or equal to 400; this gives us 75+4t ≥ 400.

To solve this, first subtract 75 from each side:

75+4t-75 ≥ 400-75

4t ≥ 325

Divide both sides by 4:

4t/4 ≥ 325/4

t ≥ 81.25

We cannot sell a portion of a ticket, so we round. While mathematically this number would "round down," if they only sell 81 tickets, they will not have enough money. Therefore we round up to 82.

7 0
3 years ago
Read 2 more answers
What is<br><br>(\frac{-7c}{p3})^-4[/tex] <br><br>without negative exponents
ycow [4]
Can you take a pic of it because it shows as copy and paste
5 0
2 years ago
A farmer want to fence in a rectangular field that encloses 3600 sq feet. The cost 3.50 per foot. Express the total cost c(x) of
Alexeev081 [22]

Answer:

Answers is C (x)=3.50 {x+3600/x}      -_-

Step-by-step explanation:

8 0
3 years ago
Can you please show me how to calculate the volume for each prism?
larisa [96]

Answer:

1st: volume = long x wide x high = 7 x [sqrt(25^2-7^2)] x 4 = 7 x 24 x 4 = 672

2nd: volume = area of base(circle) x high = pi x 9^2 x 8 = ~ 2035.8

3rd = volume = area of base(triangle) x high = [sqrt(3)/4] x 14^2 x 20 = ~1697.4

8 0
3 years ago
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