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grin007 [14]
3 years ago
11

What is the total area of this cylinder?

Mathematics
2 answers:
algol133 years ago
7 0
I get 603.19....so the last one....
AlekseyPX3 years ago
5 0
602.88 ft²
Here's how to do it for reference.
A = 2πrh + 2πr²
A = 2π(6)(10) + 2π(6)²
A = 120π + 72π
A = 192(3.14)
A ≈ 602.88
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Serena is cycling from a dance class to her home the equation shows Serena’s distance (y) in miles from her home after x minutes
mote1985 [20]
16 is the original distance her dance class was from home
7 0
3 years ago
Calibrating a scale:
lana66690 [7]

Answer:

We conclude that the calibration point is set too high.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ =  1000 grams

Sample mean, \bar{x} =  1001.1 grams

Sample size, n = 50

Alpha, α = 0.05

Population standard deviation, σ = 2.8 grams

First, we design the null and the alternate hypothesis

H_{0}: \mu = 1000\text{ grams}\\H_A: \mu > 1000\text{ grams}

We use One-tailed(right) z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{ 1001.1 - 1000}{\frac{2.8}{\sqrt{50}} } = 2.778

Now, z_{critical} \text{ at 0.01 level of significance } = 2.326

Since,  

z_{stat} > z_{critical}

We reject the null hypothesis and accept the alternate hypothesis. We accept the alternate hypothesis. We conclude that the calibration point is set too high.

6 0
3 years ago
Please find the areas of the four rectangles and ADD<br> them together. Fill in the spaces below.
Andrei [34K]
Total area = 9 x5 =45
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4 0
3 years ago
Simplify √ a^7 , where a&gt;0 Which expression is equivalent to √a^7
Softa [21]

Answer:

a^{3} \sqrt[]{a}

Step-by-step explanation:

8 0
3 years ago
Given an arithmetic sequence in the table below, create the explicit formula and list any restrictions to the domain.
djyliett [7]
An=a1+d(n-1)
an=nth term
a1=first term, when n=1
d=common differnce=amount each term increases by
n=which one


so
when n=1, an=40
so a1=40
it seems to increas by 7 each time

an=40+7(n-1)
explicit formula is expanded
an=40+7n-7
an=33+7n is the formula

the domain is natural numbers because you can't have the -3rd term or the 0th term or the 3.24th term

domain is natural numbers
the formula is a_n=33+7n or a_n=7n+33
6 0
3 years ago
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