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2 years ago

3 What is 27x + 8 ——————- 3x-2

Mathematics

2 answers:

lilavasa [31]2 years ago

7 0

Answer:

2.4

Step-by-step explanation:

marissa [1.9K]2 years ago

6 0

Answer:

34 Step-by-step explanation:

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The sample mean is x = 12.8%. let x be a random variable that represents the percentage of wheat crop in that county lost to hai

katen-ka-za [31]

Given that $\bar{x}=12.8\%$ and $\sigma=5.0\%$ , given that the population mean is $\mu=11\%$ and the sample size is n = 16, the test statistic is given by

$z= \frac{\bar{x}-\mu}{\sigma/\sqrt{n}} \\ \\ = \frac{12.8-11}{5/\sqrt{16}} \\ \\ = \frac{1.8}{5/4} = \frac{1.8}{1.25} \\ \\ =1.44 \\ \\ \Rightarrow p-value=p(z\ \textgreater \ 1.44) \\ \\ =1-P(z\ \textless \ 1.44)=1-0.92507 \\ \\ =0.07493$

Since the test is a two tailed test, the p-value is 2(0.07493) = 0.14986

Since the p-value is greater the significant level of α = 0.01, thus, we fail to reject the null hypothesis and conclude that there is no sufficient evidence that <span>the percentage of wheat crop lost to hail in that county is different from the national mean of 11%</span>.

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2 years ago

5x - 15 = 20 The first step in solving this equation is to... subtract 15 from both sides of the equation. add 15 to both sides

OLga [1]

Honestly the answer might be divide by 5. It may not be right tho. Sorry if It is wrong.

3 0

3 years ago

What is <br><img src="https://tex.z-dn.net/?f=6.73%20-%202%20%5Ctimes%205to%20%5C%3A%20the%20%5C%3Azero%20%5C%3A%20power%20%5Cdi

attashe74 [19]

$\bf 6.73-2\cdot 5^0\div 2\impliedby \mathbb{PEMDAS}
\\\\\\
6.73-\underline{2\cdot 1}\div 2\implies 6.73-\underline{2\div 2}\implies 6.73-1\implies 5.73$

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2 years ago

How do you write 9.58 as a mixed number

kodGreya [7K]

9 58/100 in mixed number form

8 0

3 years ago

Read 2 more answers

Two friends are collecting stuffed animals. Veronica has 5 more than double the number of stutted

STatiana [176]

v + m = 32 and v = 5 + 2m are the equations that are used to determine m, the number of stuffed animals Mariposa has

Number of stuffed animals Mariposa has is 9 and number of stuffed animals with Veronica is 23

<h3><u>Solution:</u></h3>

Let "v" be the number of stuffed animals with Veronica

Let "m" be the number of stuffed animals with Mariposa

Given that,

Together, they have 32 stuffed animals

Therefore,

v + m = 32 --------- eqn 1

Veronica has 5 more than double the number of stutted animals as her friend Mariposa

Therefore,

Number of stuffed animals with Veronica = 5 + 2(number of stuffed animals with Mariposa)

v = 5 + 2m ---------- eqn 2

Thus eqn 1 and eqn 2 can be used to determine m, the number of stuffed animals Mariposa has

Let us solve eqn 1 and eqn 2

Substitute eqn 2 in eqn 1

5 + 2m + m = 32

5 + 3m = 32

3m = 32 - 5

3m = 27

Substitute m = 9 in eqn 2

v = 5 + 2(9)

v = 5 + 18

Thus number of stuffed animals Mariposa has is 9 and number of stuffed animals with Veronica is 23

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3 years ago