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3 years ago

Please Help! 5.1 Algebra

Mathematics

2 answers:

sasho [114]3 years ago

4 0

Answer:

Step-by-step explanation:

Since x is in an absolute value, we know that no matter what value we put in for x, the result will always be positive. B fits this description.

seropon [69]3 years ago

4 0

I think it’s D

Domain: (-∞,∞),{x|x∈ℝ}
Range: [0,∞),{y|y≥0}

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The growing interest in and use of the Internet have forced many companies into considering ways to sell their products on the W

Romashka [77]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

Education : 11 11 8 13 17 11 11 11 19 13 15 9 15 15 11

Internet use 10 5 0 14 24 0 15 12 20 10 5 8 12 15 0

Labeled scatter plot of Education and Internet Use is attached in the picture below.

Yes there appears to be a linear relationship between the two variables (Education and Internet Use) as the data points appears to have an upward trend depicted by the linear trend line in the graph.

The correlation Coefficient value which is measures the degree of linear relationship between education and internet use is 0.7048

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3 years ago

What is the sum of the polynomials (-x^2+9)+(-3x^2-11x+4)

Marta_Voda [28]

You can just add the terms:

<span>(-x^2+9)+(-3x^2-11x+4) = -4x</span>² - 11x + 13

6 0

3 years ago

Read 2 more answers

Rectangle is 5 feet wide and 11 feet long. What is the perimeter

Ahat [919]

Answer:

Just add all side

5+11+5+11=32 feet

4 0

3 years ago

Read 2 more answers

Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm. What is Rich's percent error in this c

Hitman42 [59]

Answer:

0.9%

Step-by-step explanation:

We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm.

We will use percentage error formula to solve our given problem.

$\text{Percentage error}=\frac{\text{Experimental value-Actual value }}{\text{Actual actual}}\times 100$

$\text{Percentage error}=\frac{80.7-80}{80}\times 100$

$\text{Percentage error}=\frac{0.7}{80}\times 100$

$\text{Percentage error}=0.00875\times 100$

$\text{Percentage error}=0.875\approx 0.9$

Therefore, Rich's percent error in calculation is 0.9%.

5 0

4 years ago

BRAINLIST IF CORRECT! 10 POINTS!<br> What is the constant of proportionality if x is 3 and y is 9?

velikii [3]

Answer:

constant of proportionality, k is 3

Step-by-step explanation:

constant, k= y/x

k=9/3

= 3

7 0

3 years ago