3 years ago

How to solve question 5 and 6?

Mathematics

1 answer:

MaRussiya [10]3 years ago

6 0

Answer:

Step-by-step explanation:

X-2=-1. and X-2=1

X=1. X=3

X+1=5. and X+1=-5

X=4. X=-6

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A container holds 100 teaspoons of water. what might the container look like? include dimensions

Svetlanka [38]

You'll haft to do this one on your own it sounds like a project sorry!!!

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3 years ago

2x+2y=17<br> 4x-y=25<br> What is the x value of the system of equations

Mrac [35]

X=4.2
For the second equation, y=4x-25. Then you plug that into the first equation, which would form: 2x+2(4x-25)=17. Simplify. 2x+8x-25=17. 10x=42. x=4.2

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3 years ago

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A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to their new home. Find the margin

Mrac [35]

Answer:

The margin of error M.O.E = 2.5%

Step-by-step explanation:

Given that;

The sample size = 1500

The sample proportion $\hat p$ = 0.60

Confidencce interval = 0.95

The level of significance ∝ = 1 - C.I

= 1 - 0.95

= 0.05

The critical value:

$Z_{\alpha/2} = Z_{0.05/2} \\ \\ Z_{0.025} = 1.96$ (From the z tables)

The margin of error is calculated by using the formula:

$M.O.E = Z_{\alpha/2} \times \sqrt{\dfrac{\hat p(1 -\hat p)}{n}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{\hat 0.60(1 -0.60)}{1500}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{0.24}{1500}}$

$M.O.E = 1.96 \times \sqrt{1.6 \times 10^{-4}}$

M.O.E = 0.02479

M.O.E ≅ 0.025

The margin of error M.O.E = 2.5%

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3 years ago

a bag contains four blue, three green, and five red balls. if four balls are drawn at random, what is the probability that two a

inn [45]

The Fully simplified answer is 1/36

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2 years ago

56: =24:3

dmitriy555 [2]

56:7=24:3
3x3=27:3
8x2=64:4
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4x5=10x2
42:6=63:9
28:4=7x1
2x2=36:9

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3 years ago