3 years ago

Select the correct answer.

Mathematics

1 answer:

ella [17]3 years ago

7 0

Answer:

I think its the answer is B im not sure

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What substitution should be used to rewrite 4x^4-21x^2+20 =0 as a quadratic equation

marysya [2.9K]

I would substitute y = x^2

4y^2 -21y+20=0

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3 years ago

7.935 x 10 to negative 5 power

Effectus [21]

Answer:

0.00007935

Step-by-step explanation:

7.935 x 10 to negative 5 power can be written as:

7.935 x 10^(-5)

$7.935*10^{-5}\\\frac{7.935}{10^5}$

A trick to finding 10 to the x power, x is the number of 0's. So 10^5 = 100000

$\frac{7.935}{100000}\\$

When dividing by tens, move the decimal to the left by the amount of 0's

So our answer is 0.00007935

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3 years ago

The price of pears at a farm is $1.41 per pound. Which equation can be used to determine c, the total price of n pounds of pears

Schach [20]

Answer:

C = 1.41n

Step-by-step explanation:

you have to multiply 1.41 by the weight(n)

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2 years ago

One less than one fourth the square of a number.

Free_Kalibri [48]

Answer:

1/4m²-1

let m be the number.

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2 years ago

WHAT NUMBER MUST BE ADDED TO BOTH THE NUMERATOR AND DENOMENATOR OF 3/7 TO OBTAIN A FRACTION EQUAL TO 7/9?

yan [13]

Answer:

Add 22/63

Step-by-step explanation:

3/7 + n = 7/9

<u>Step 1: Subtract 3/7 from both sides</u>

3/7 + n - 3/7 = 7/9 - 3/7

n = 49/63 - 27/63

n = 22/63

Answer: Add 22/63

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2 years ago