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3 years ago

9

Data about cell phone usage was collected from 14 different people. The list shoes the number of incoming calls each person rece

ived during the month of August. 87, 102, 131, 132, 155, 173, 178, 204, 211, 244, 253, 278, 301, 371, What is the interquartile range of data?

1 answer:

Rudik [331]3 years ago

7 0

Answer: 121

Step-by-step explanation:

I calculated, trust. Also took the test.

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What is the simplified form of the expressions? a. −6a2b−1 b. 5/y−3

joja [24]

Given:

The expressions are

$-6a^2b^{-1}$

$\dfrac{5}{y^{-3}}$

To find:

The simplified form of each expression.

Solution:

We have,

$-6a^2b^{-1}$

$=-6a^2(\dfrac{1}{b})$ $[\because x^{-n}=\dfrac{1}{x^n}]$

$=-\dfrac{6a^2}{b}$

Therefore, the simplified form of $-6a^2b^{-1}$ is $-\dfrac{6a^2}{b}$ .

We have,

$\dfrac{5}{y^{-3}}$

$=\dfrac{5}{\dfrac{1}{y^3}}$ $[\because x^{-n}=\dfrac{1}{x^n}]$

$=5\times \dfrac{y^3}{1}$

$=5y^3$

Therefore, the simplified form of $\dfrac{5}{y^{-3}}$ is $5y^3$ .

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3 years ago

What is the domain of f(x)=√(x)?

finlep [7]

Answer: x is x≥0 x ≥ 0

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4 years ago

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

Which American Indian group formed an alliance with the British as the French and Indian War began?

goblinko [34]

I think the correct answer is A

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3 years ago

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Evaluate x(y+3)/(3+y)z for x=12, y=1, and z=6.<br><br> A) 2<br><br> B) 5<br><br> C) 8<br><br> D) 6

fgiga [73]

Answer:

2

Step-by-step explanation:

We take the equation

$x(y+3)/(3+y)z$

and substitute the values for each individual variable in the problem. It looks like this:

$12(1+3)/(3+1)6$

Now we can solve the equation.

When solved, it equals 2.

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3 years ago

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