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Margarita [4]
3 years ago
14

PLEASE HELP ME

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0

Answer:

480

Step-by-step explanation:

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How do you find the original price after a discount. The sales price is 55.50 and the percent of discount is 75%.
Arte-miy333 [17]
Well first we know that 55.50 is 25% so I guess multiply it by 3 to get the full price equalling nearly 166 which is closest to 165, so that’d be my answer. Sorry if wrong.
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3 years ago
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What is the equation, in standard form, of a parabola that models the values in the table?
Vitek1552 [10]

Answer:

  b.  4x^2 + 3x - 6

Step-by-step explanation:

The values of f(x) for the extremes of x are more positive than the value of f(x) for the middle x, so we know the parabola opens upward. That eliminates choice D.

It is probably easiest to evaluate the other expressions to see which one matches the given f(x) values. For the purpose, it is usually easier to use the Horner form of the equation.

a. f(-2) = (3(-2) +4)(-2) -6 = -2(-2) -6 = -2 ≠ 4

b. f(-2) = (4(-2) +3)(-2) -6 = -5(-2) -6 = 4 . . . . matches the given data point

c. Because (b) matches, we know this one will not.

The appropriate choice is B.

8 0
3 years ago
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When p = 12, t = 2, and s= 6, r= 18. If r varies directly with p and inversely with the product of s and t, what is the
Luda [366]

Answer:

r=kp/s×t

18=12k/6×2

18=12k/12

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r=18p/s×t

7 0
1 year ago
15 POINTS!! HELP ME PLZ!!!
Mrrafil [7]

The answer is C: systematic sampling

8 0
3 years ago
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Three married couples go to a movie theater. if they sit together in a row of 6 empty seats, find the probability that each woma
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Given are three married couples.

So, let us assume there are 3 men and 3 women

They are sitting in a row of 6 empty seats

There is a definite order constraint that each woman will sit left to her husband. The first woman gets 3 options to choose from 3 available seats. The second woman has two options left as already one seat is filled by the first woman. The last woman has one option left. So, it is 3*2*1

So, number of ways is 3! = 3*2*1 = 6 ways.

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3 years ago
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