3 years ago

What is 1 + 1? Need an explanation.

Mathematics

1 answer:

Alexus [3.1K]3 years ago

3 0

The answer is 1 + 1 = <em>2</em>

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Acellus

steposvetlana [31]

Format: y = mx + b
m = slope, b = y intercept
The answer is y = x + 2

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3 years ago

Which methods could you use to calculate the y-coordinate of the midpoint of vertical line segment with endpoints at (0,0) and (

Hatshy [7]

Answer:

Midpoint formula.

The midpoint formula is (x_1+x_2)/2 , (y_1+y_2)/2

Step-by-step explanation:

This is one method. A list wasn't provided.

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3 years ago

What are the coordinates of the midpoint of the line segment with end points J (-6, 3) and K (4, -2)

iVinArrow [24]

Answer:

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Step-by-step explanation:

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3 years ago

A research company desires to know the mean consumption of meat per week among people over age 40. A sample of 610 people over a

Papessa [141]

Answer: $(3.0,\ 3.2)$

Step-by-step explanation:

Confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$ (1)

, where $\overline{x}$ = Sample mean

$z_{\alpha/2}$ = Critical z-value

$\sigma$ = Population standard deviation.

n= Sample size.

As per given , we have

n= 610

$\sigma=1.1$

$\overline{x}=3.1$

Significance level for 85% confidence : $\alpha=1-0.85=0.15$

By z-table critical two tailed z-value : $z_{\alpha/2}=z_{0.075}=1.44$

Put all values in (1) , we get

$3.1\pm 1.44\dfrac{1.1}{\sqrt{610}}$

$3.1\pm 1.44\dfrac{1.1}{24.698}$

$3.1\pm 0.064$

$=(3.1-0.064,\ 3.1+0.064)=(3.036,\ 3.164)\approx(3.0,\ 3.2)$

Hence, the 85% confidence interval for the mean consumption of meat among people over age 40. = $(3.0,\ 3.2)$

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4 years ago

Marie has renters insurance that she must pay twice a year. If each payment is $96, how much money should she set aside each mon

enyata [817]

$96(2 payments) = $192

$192/(12 months) = $16 per month (she should set aside)

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4 years ago

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