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3 years ago

Help fast asap! Please

Mathematics

2 answers:

const2013 [10]3 years ago

7 0

A circle is 360°. So 360/12= 30°. Hope that helps.

Yanka [14]3 years ago

3 0

It is 360 so 360/12=30 I hope that help u

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A campground says campers can rend a square space taking up 225 square feet. How long would one side of the space be?

Helga [31]

Answer:

56.25 ft

Step-by-step explanation:

It is simple, since it is a square the sides are all the same length so you take A=area and divide it by four= h or w or l (height, width, length) so

225/4=56.25

3 0

3 years ago

Which expression is equivalent to cos(3x) sin x?

Drupady [299]

The answer is A)1/2[sin(4x)+sin(2x)]

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3 years ago

Question 6 (1.25 points)

Lisa [10]

Answer:

Test statistic Z= 1.713

The calculated Z- value = 1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

Step-by-step explanation:

Step(i):-

A researcher wants to test if the mean annual salary of all lawyers in a city is

different from $110,000

Mean of the Population μ = $110,000

Sample size 'n' = 53

Mean of the sample x⁻ = $114,000.

standard deviation of the Population = $17,000,

Level of significance = 0.01

Null hypothesis :

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

H₀: x⁻ = μ

Alternative Hypothesis : x⁻ ≠ μ

Step(ii):-

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{114000-110000}{\frac{17000}{\sqrt{53} } }$

Z = 1.7130

Tabulated value Z = 2.576 at 0.01 level of significance

The calculated Z- value = 1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the mean annual salary of all lawyers in a city is different from $110,000

4 0

3 years ago

Michele is purchasing new clothes for soccer practice for the upcoming season. She buys s pairs of shorts at $14.98 each. She al

Arte-miy333 [17]

Answer:

s14.98 + 92

Step-by-step explanation:

In order to make an expression for this word problem, all you have to do is follow along the steps in the problem:

s14.98 represents how many shorts Michele bought and how much they cost

8 * 11.50 represents how many shirts she bought and what they cost, but we need to simplify, so

8 * 11.50 = 92

Therefore, by adding the shorts and shirt together, we get the expression:

s14.98 + 92

Hope this helps :)

7 0

3 years ago

Quiz Normal Distribution

nadya68 [22]

Answer:

Step-by-step explanation:

cause its 7

i know also cause it what i do im a math teacher at k12 online school

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2 years ago

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