4 years ago

Solve -1/2 x + 2 = -x + 7

Mathematics

2 answers:

lidiya [134]4 years ago

7 0

Answer:

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−1

x+2=−x+7

Step 2: Add x to both sides.

−1

x+2+x=−x+7+x

x+2=7

Step 3: Subtract 2 from both sides.

x+2−2=7−2

x=5

Step 4: Multiply both sides by 2.

2*(

x)=(2)*(5)

GalinKa [24]4 years ago

6 0

Answer:

x=10

Step-by-step explanation:

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Which point lies on the line with the point slope equation y-2=5 x-6

egoroff_w [7]

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3 years ago

Construct a confidence interval of the population proportion at the given level of confidence. x = 125, n = 250, 90 % confidence

madam [21]

Answer: 90% confidence interval would be (0.448, 0.552).

Step-by-step explanation:

Since we have given that

x = 125

n = 250

So, $\hat{p}=\dfrac{x}{n}=\dfrac{125}{250}=0.5$

We need to find the 90% confidence interval.

so, z = 1.64

So, interval would be

$\hat{p}\pm z\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.5\pm 1.64\sqrt{\dfrac{0.5\times 0.5}{250}}\\\\=0.5\pm 0.0519\\\\=(0.5-0.0519,0.5+0.0519)\\\\=(0.448,0.552)$

Hence, 90% confidence interval would be (0.448, 0.552)

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4 years ago

PLEASE HELP !!!!!!! what values from the set 1,2,3,4,5 make the inequality true n+2<6 ?????

Maru [420]

1 and 2, because 1+2 is 3, which is less than 6, 2+3 is 5 which is also less than 6.

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3 years ago

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sleet_krkn [62]

Answer:

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3 years ago

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Artemon [7]

Answer:

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Step-by-step explanation:

Are you sure there isnt a graph that goes along with this?

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3 years ago