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olga_2 [115]
3 years ago
8

Calculate 25% of 80

Mathematics
2 answers:
Rainbow [258]3 years ago
5 0

Answer:

20

Step-by-step explanation:

Serggg [28]3 years ago
3 0
20

25 percent * 80 =

(25:100)* 80 =

(25* 80):100 =

2000:100 = 20
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-36/8 is it greater than -4.5
zvonat [6]

now, if we check what is 36 ÷ 8 = 4.5, so -36/8 = -4.5, and -4.5 = -4.5, so they're both equal, neither is greater.

7 0
4 years ago
A trapezoid has an area of 30m^2. if all of its side lengths are tripled, what will its new area be​
Norma-Jean [14]

Answer:

270

Step-by-step explanation:

Because we do not know what the side lengths are, as long as they multiply to 30m^2, it's fine

For this question, let's just say the base is 5, and the height is 6. If we triple 5, we get 15, and if we triple 6, we get 18. 15*18=270

Now what if, the sides are not 5 and 6. Will the area still be the same? Let's find out.

10*3=30 so we can say for this answer, the base is 3, and the height is 10.

10 tripled is 30, and 3 tripled is 9. 30*9=270

So as we look at these 2 answers. we can conclude that the new area, no matter the side lengths, will be 270

Hope this helpes!

5 0
4 years ago
certain electronics manufacturer found that the marginal cost C to produce x DVD/Blu- ray players can be found using the equatio
AleksAgata [21]

Answer:

242.

Step-by-step explanation:

C = 0.03 x 2 − 8 x + 700

When the marginal cost = $522 we have:

522 = 0.03 x 2 − 8 x + 700

0.03x^2 - 8x + 700 - 522 = 0

0.03x^2 - 8x + 178 = 0

Using the quadratic formula:

x =  [ -(-8) +/- sqrt( 64 - 4 * 0.03 * 178)] / 0.06

= 8 +/- sqrt42.64 / 0.06

= 242  players.

8 0
3 years ago
Which of the binomials below is a factor of this trinomial? -3x^2-21x+24 x-4 x+1 x+4 x-1
OleMash [197]

Answer:

-3x^2-21x+24

Step-by-step explanation:

Kindly separate the answer choices:  (x - 4), (x + 1), (x + 4) , (x - 1).  The trinomial is thus -3x^2-21x+24, which can be factored as follows:  -3(x^2 + 7x - 8)

Then we have -3x^2-21x+24 = -3(x^2 + 7x - 8), which factors further into:

-3(x + 8)(x -1)  and so we conclude that the only binomial that is a factor of

-3x^2-21x+24 is (x - 1).

5 0
3 years ago
Does this graph show a function?
Vsevolod [243]

Answer:

Yes it is a function.

Step-by-step explanation:

B is my answer.

8 0
3 years ago
Read 2 more answers
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