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2 years ago

Help omg if so thank you.

Mathematics

2 answers:

Goshia [24]2 years ago

7 0

Answer:

Step-by-step explanation:

49*5/7

=35

ladessa [460]2 years ago

7 0

35 is the corresct answer trust me!

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Chloe was x inches tall on her birthday last year. This year she is 2.5 inches taller. Select all of the following expressions t

Lubov Fominskaja [6]

X+2.5 because you dont know her height of last year which would give you the variable X and this year she grew 2.5 inches which would make the equation X+2.5
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3 years ago

Noah measured the length of three pieces of cloth. The measurements were 4.29 feet, 3.6 feet, and 2.34 feet. what was the total

iragen [17]

10.23 feet is the answer because when you line up the decimals and add, its 10.23

4 0

3 years ago

A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d

Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $3.26 a gallon

Sample mean, $\bar{x}$ = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}$

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

Formula:

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

Putting all the values, we have

$t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247$

Thus, the value of test statistic is -4.1247

3 0

2 years ago

How do you find 10% of 9900

Serhud [2]

Step-by-step explanation:

$10\% \: of \: 9900 \\ \\ = \frac{10}{100} \times 9900 \\ \\ = 10 \times 99 \\ \\ = 990$

7 0

3 years ago

Read 2 more answers

Find m∠U.<br> Write your answer as an integer or as a decimal rounded to the nearest tenth.

Ilia_Sergeevich [38]

Answer:

∠U = 56.4

Step-by-step explanation:

We can use trigonometric functions to solve this

Here we are given the opposite side of ∠U as well as the adjacent side.

When dealing with the adjacent and opposite side we use sin

Sin = Opposite side / Adjacent side

Opp = 5 and adj = 6

Sin(U) = 5/6

* take the inverse sine of both sides *

arc(sin)(u) = u

arcsin(5/6) = 56.4 *( rounded to the nearest tenth )

∠U = 56.4

5 0

2 years ago

Read 2 more answers