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dolphi86 [110]
3 years ago
15

The can below has a height of 5.5 inches and a diameter of 4.5 inches. Find the lateral and total surface area of the can. Round

your answers to the nearest tenth.
im to sleep deprived to think and this is my last question on a review from middle school (sad right?) lol

Mathematics
1 answer:
tatuchka [14]3 years ago
4 0
I’m pretty sure that the answer is 24.75
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Rick bought 3 shirts for $18.75 each, 2 pair of socks for $3.99 a pair, and a pair of slacks for $45.00. The
SIZIF [17.4K]

Answer:

3 shirt=3×$18.75

=56.25

2 pair shocks =3.99×2

=8

1 pair slacks=45.00

total=109.25

tax=6.75% then;

109.25+6.25%×109.25

109.25+6.25/100×109.25

109.25+0.0625×109.25

109.25+6.28

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5 0
3 years ago
Suppose the national mean SAT score in mathematics was 510. In a random sample of 60 graduates from Stevens High, the mean SAT s
zalisa [80]

Answer:

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 510

Sample mean, \bar{x} = 502

Sample size, n = 60

Sample standard deviation, s = 30

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

H_{0}: \mu = 510\\H_A: \mu \neq 510

We use Two-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n-1}} } Putting all the values, we have

t_{stat} = \displaystyle\frac{502- 510}{\frac{30}{\sqrt{60}} } = -2.0655

Now,

t_{critical} \text{ at 0.05 level of significance, 59 degree of freedom } = \pm 1.671

Since,              

|t_{stat}| < |t_{critical}|

We reject the null hypothesis and fail to accept it.

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

7 0
3 years ago
Factor completely 81m^2-169
wel
<span> 81m^2-169 = (8m + 13)(8m - 13)
</span>
7 0
4 years ago
What is the rate of the discount on a automobile marked $20,000 but sold for $16,000?
Irina18 [472]

Answer:

Step-by-step explanation:

Use equation

20000-16000=4000

20000:100=4000 :x

x20000=400000

x=400000/20000

x=20 %

6 0
4 years ago
11 X +11 Y equals -5
lina2011 [118]

Answer:

Step-by-step explanation:

11x+11y=-5

8 0
3 years ago
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