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Rudik [331]
3 years ago
6

Express 4x^2-25 as a product of two binomials.

Mathematics
2 answers:
Ede4ka [16]3 years ago
8 0
4x^2-25=(2x)^2-5^2=(2x-5)(2x+5)
Andrei [34K]3 years ago
5 0

4x^2-25= (2x)^2-5^2=(2x-5)(2x+5)

Used: a^2-b^2=(a+b)(a-b)

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29. The table below represents the relationship of the price of carrots to their weight in ounces in a market: Price Weight, in
Alinara [238K]

The proportional relationship that represents the market that sells their carrots at a lower rate per pound is: y = 1.6x.

<h3>What is a proportional relationship?</h3>

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality.

From the table, the rate is:

k = $8.8/4.4 = 2.

From the market, the rate is:

k = $4.8/3 = $1.6.

Hence the equation is y = 1.6x.

More can be learned about proportional relationships at brainly.com/question/10424180

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3 0
1 year ago
This is timed and Will mark BRAINLIEST!!!
sertanlavr [38]

answer is either A or D

I hope this help. but I'm not really sure.

5 0
2 years ago
"if the standard deviation of a group of 20 scores is 15, what is the variance?"
DerKrebs [107]

We have been given that the standard deviation of a group of 20 scores is 15 and we are asked to find variance.

Since we know variance is square of standard deviation. In order to find out the variance of the given data we have to take the square of 15.

\text{ Variance}=\sigma^{2}\\&#10;=15^{2}=225

Therefore, our variance is 225.


7 0
2 years ago
Which group of number are all perfect squares
Gala2k [10]
C: 9 ( = 3^2), 49 ( = 7^2), 81 ( = 9^2) 

8 0
2 years ago
Simplify. 4 + 3 • (7 – 2) A. 19 B. 35 C. 47 D. 12
makvit [3.9K]
4 + 3 * (7 - 2)
4 + 3 * 5
4 + 15
19 <==
8 0
2 years ago
Read 2 more answers
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