In a sale game boys are reduced by two-fifths what is the sale price if the original price was 50

Answers

Answer 1

Answer: the answer should be 30. a fifth of 50 is 10 so two fifths is 20. 20 minus 50 is 30

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1) A circle has a circumference of 121 yd. What is the diameter of the circle? a) 12 yd b) 6 yd c) 18 yd

Answers

Answer:

i think its 6

Step-by-step explanation:

Which of the following represents the zeros of f(x) = 3x^3 − 10x^2 − 81x + 28?A) 7, -4, 1/3
B) 7, -4, -1/3
C) 7, 4, 1/3
D) 7, 4, -1/3

Answers

Option A). 7, -4 and 1/3

To find the zeros you can factor the polynolial into (3x-1)((x+4)(x-7)

Then:
3x -1 =0 => x = 1/3
x+4=0 => x = -4
x-7 =0 => x =7

Those are the three zeros.

Factorize (4y-5)²+80y

Answers

Answer:

16y^2+40y+25

Step-by-step explanation:

${16y}^(2) + 40y + 25$

Step-by-step explanation:

(4y−5)^2+80y

Use binomial theorem (a−b)^2=a^2−2ab+b^2 to expand (4y−5)^2.

16y^2−40y+25+80y

Combine −40y and 80y to get 40y.

16y^2+40y+25

Which of the following types of statement cannot be used to explain the steps of a proof? Check all that apply. A.Postulate B.Guess C.Conjecture D.Theorem

Answers

Answer:

Guess and Conjecture

Step-by-step explanation:

Conjecture is simply an opinion gotten from an incomplete information .Fro example. 10 boys selected from Nigeria were served pizza. None of them ate pizza.

it is a conjecture to conclude that all the males in Nigeria do not eat pizza, because the information is incomplete

Guess is almost similar to conjecture. It is conclusion from incomplete information. It is based on one's personal opinion. Guess can be true or false. it is underprobaility and hence cant be banked upon to explain a proof.

Answer:

guess, conjecture

Step-by-step explanation:

If the common difference in an arithmetic sequence is 4, and the 20th term is 36, what is the first term?

Answers

The sum of an arithmetic sequence can be found using the formula S = n/2(a + l) where S equals sum, n equals # terms, a equals the first term and l equals last term we know enough of these to find the missing pieces S = -15n = 20a = 4 -15 = 20/2 (4 + l) now we only have one unknown -15 = 10 (4 + l)-15 = 40 + 10l-55 = 10l l = -5.5 so the last term is -5.5 now we can use anothe formula to find the common difference l = a + (n-1) d so the last term equals the first term (a) plus # terms -1 times (d) the common difference -5.5 = 4 + (20-1) d -9.5 = 19 d d = -.5 so your common difference is -.5

A company has a policy making the compensation of its CEO proportional to the dividends that are paid to shareholders. If the dividends increase from $72 to $80 and the CEO’s compensation is increased from $360,000 to $420,000, was the company’s policy followed? yes or no

Answers

Percentage increase of dividends:
[(80-72)/72] x 100 = 11.1% increase

Percentage increase of CEO compensation:
[(420000-3600000/3600000] x 100 = 16.67% increase

Therefore the company policy was not followed as the CEO's compensation had a greater percentage increase than the dividends to the shareholders

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Leo is purchasing a bike that is on sale for 30% off. He knows the function that represents the sale price of his bike is c(p) = 0.7p, where p is the original price of the bike. He also knows he has to pay 12% sale's tax on the bike. The price of the bike with tax is f(c) = 1.12c, where c is the sale price of the bike.Determine the function that can be used to calculate the final price of Leo's bike by solving for f[c(p)]. f[c(p)] = 1.82cp f[c(p)] = 1.82p f[c(p)] = 0.784cp f[c(p)] = 0.784p