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3 years ago

The solution set x ≤ 2 or x ≥ 4 is consistent with an equation of the form

Mathematics

1 answer:

yawa3891 [41]3 years ago

6 0

Answer:

the answer is choice a your welcome

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sammy [17]

Answer:

Step-by-step explanation:

use pemdas

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3 years ago

Read 2 more answers

1. What is the distributive law for real numbers a,b,c? A(b+c)=ab+ac (a+b)c=ac+bc (a+c)b=ab+cb All of the answer choices are cor

Andre45 [30]

Answer:

Step-by-step explanation:

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3 years ago

This is math please help !!!!!!!

aev [14]

Answer:

Hello I'lll solve this problem.

Step-by-step explanation:

So the answer is actually C. I did the work.

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3 years ago

Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test t

Ganezh [65]

Answer: z =2.39

Step-by-step explanation:

Given :

$H_0: p \leq0.23\\\\ H_a: p > 0.23$

A random sample of 136 households found that 43 consisted of one person.

i.e. Sample size : n= 136

Sample proportion : $\hat{p}=\dfrac{43}{136}=0.316176470588\approx0.3162$

Test statistic for proportion :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

$\Rightarrow z=\dfrac{0.3162-0.23}{\sqrt{\dfrac{0.23(1-0.23)}{136}}}\\\\\Rightarrow\ z=\dfrac{0.0862}{\sqrt{0.00130220588235}}\\\\\Rightarrow\ z=\dfrac{0.0862}{0.0360860898734}\\\\=2.38873206552\approx2.39$

Hence, the value of the test statistic: z =2.39

5 0

3 years ago

For the remaining portion of the living room not covered by the new flooring, Michelle wants to paint the concrete. After carefu

solong [7]

Answer:

$x^2 + 6 = 31$

Step-by-step explanation:

Given

$Painted = 6ft^2$

$Total = 31ft^2$

Dimension of unpainted area:

$Length = Width = x$ --- Square

Required

Determine an expression to solve for x

First, calculate the area of the unpainted space;

$Area = Length *Width$

$Area = x*x$

$Area = x^2$

The unpainted area, added to the painted area, equals the total area.

So, we have:

$Area + Painted = Total$

$x^2 + 6 = 31$

Hence, the expression is: $x^2 + 6 = 31$

5 0

3 years ago