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2 years ago

Can someone please help me!! please and thank you, it’s pemdas and gems

Mathematics

1 answer:

Leya [2.2K]2 years ago

5 0

First 8-3
next 4^4
then 16-6
last 10+5
you should get 15

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(Label each one)

shutvik [7]

1,3) no solution

2,4,5,6,7) solution

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3 years ago

The Law of Demand is one of the most famous laws in economics. It states that when the price of a good rises, the amount demande

skelet666 [1.2K]

Falls, rises

if it is the ONLY cable provider, then it is a monopoly

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2 years ago

Pls help! I don’t understand bc I’m not smart-

Ipatiy [6.2K]

Answer:

78.5 m²

Step-by-step explanation:

The formula to find the area of a quarter of a circle: $\frac{1}{4} * \pi * r^{2}$ , where $r$ is the radius (diameter ÷ 2) and the $\pi$ is alterable.

1) Substitute the given values into the formula.

= $\frac{1}{4} * 3.14 * 10^{2}$

2) Solve it.

= $\frac{1}{4} * 314$

= 78.5

3) Round it off to the nearest tenth. In this case, it has already been rounded off.

8 0

1 year ago

Help Please!!!<br> Find the volume of the sphere

yuradex [85]

Answer:

523.6

Step-by-step explanation:

Not sure how to explain •-•

Hope it helps c:

5 0

2 years ago

Read 2 more answers

A simple random sample of 20 third-grade children from a certain school district is selected, and each is given a test to measur

ICE Princess25 [194]

Answer:

Option C) 5.62 points

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 20

Sample mean score = 64

Sample standard deviation, s = 12

Degree of freedom =

$=n-1\\=20-1\\=19$

We have to calculate margin of error for a 95% confidence interval.

Formula for margin of error:

$t_{critical}\times \displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.05} = \pm 2.093$

$2.093\times (\displaystyle\frac{12}{\sqrt{20}} )\\\\ =5.6161\approx 5.62$

Thus, the correct answer is

Option C) 5.62 points

4 0

3 years ago