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Art [367]
3 years ago
9

What are the factors of the polynomial 25x^2-16

Mathematics
1 answer:
Dovator [93]3 years ago
3 0

Answer:

(4 + 5x)(-4 + 5x)

Explanation:

Simplifying

25x2 + -16

Reorder the terms:

-16 + 25x2

Factor a difference between two squares.

(4 + 5x)(-4 + 5x)

Final result:

(4 + 5x)(-4 + 5x)

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For the past 15 months, Frank recorded the cost of his monthly home heating bill and the corresponding average monthly temperatu
leonid [27]

The scatter plot shows that the heating bill will be about $95 for an average monthly temperature of 40°F.

<h3>What is a scatter plot?</h3>

It should be noted that a scatter plot uses dots to represent values for different numeric variables. In this case, the position of each dot on the horizontal and vertical axis shows the values for an individual data point.

From the complete question, the graph attached shows that the heating bill will be about $95 for an average monthly temperature of 40°F.

In conclusion, scatter plots are used to observe the relationships between variables.

Learn more about scatter plots on:

brainly.com/question/6592115

3 0
2 years ago
In 1980, Ric was twice as old as Nancy who was as old as Manual. In 1992, Ric, Nancy and Manual’s ages added up to 78 years. How
myrzilka [38]
He was 21 in 1980,
There are twelve years in between them all so you subtract 36 from 78 and since he was double as old as Nancy, and Manual was the same age as her, you would divide 42 into two parts, Ric and the 10.5 year olds, and Ric would be 21 in 1980.
6 0
3 years ago
Find the slope and the y-intercept for the line. y=2/5x
kondor19780726 [428]
Answer:

Slope= 2/5

y intercept = 0
3 0
3 years ago
The perimeter of a rectangular concrete patio is 100 meters. it is 30 meters long. how wide is it?
34kurt
Perimeter is 2l+2w
100 =2(30) + 2w
100 =60 + 2w
-60 -60
40 = 2w

w=20 meters.
6 0
4 years ago
Which is a closer estimate of pi? Explain your answer.
nydimaria [60]
The fraction 22/7 has a value of 3.142857, so it has the same first three digits as pi. Both 3.14 and 22/7 are approximations of pi. In fact, 22/7 is close to pi than 3.14 is. Pi is irrational. That is, the decimal expansion never ends and never repeats, so any number of decimal places we wrote out is an approximation. The approximation 3.14 is about 1/2 percent off from the true value, and the fairly well know 3.141559 is within 0.000084 percent.
6 0
3 years ago
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