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Dennis_Churaev [7]
3 years ago
7

Solve this equation 1 = 1 - 2n + 8

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0
<h3>Answer:</h3>

n=4

<h3>Explanation:</h3>

1 = 1 - 2n + 8

2n =  - 1  + 1 + 8

2n = 8

n = 4

I hope you are satisfied

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A data set includes data from 500 random tornadoes. The display from technology available below results from using the tornado l
solniwko [45]

Question:

The question is incomplete. The display technology was not given. Find below the complete question and the answers.

Display from technology:

Hypothesis Test Results

μ : Mean of variable      

H₀ : μ=2.7 miles

HA  : μ >2.7 miles

Variable     Sample Mean      Std. Err.        DF           T-Stat            P-value

Length            3.23601        0.285185      499        2.230166        0.0131

Step-by-step explanation:

From the result obtained, we have;

Null hypothesis:   H₀ : μ=2.7 miles

Alternative hypothesis:   HA  : μ >2.7 miles

Test statistics = 2.230166

P-value =  0.0131

Significant level: α = 0.05

Since the P value is less than the significance level, we can reject the null hypothesis.

There is no sufficient evidence to support the claim that the mean tornado length is greater than 2.7 miles

3 0
4 years ago
20 POINTS PLEASE ANSWER FAST
Lina20 [59]

Question:

What is the product of 7\sqrt{3} and 9\sqrt{15}

7\sqrt{3}\cdot \:9\sqrt{3}\sqrt{5}

7\cdot \:3\cdot \:9\sqrt{5}

189\sqrt{5}-----

-Hunter

8 0
3 years ago
Stacy wants to make 100 name tags with ribbons attached to them. each name tag requries 5 centimeter of ribbon. she has 3.25 met
nydimaria [60]
So convert 3.25 meters to centimeters, and you get 325 centimeters.
Now divide 325 by 5 (for each ribbon), and you get 65 name tags.
Therefore, she needs 35 MORE name tags to get to 100.
Multiply 35 by 5 and you get 175 MORE centimeters of ribbon.

Hope this helped!
4 0
4 years ago
What is the slope of the line represented by the equation y= -1/2x+ 1/4
torisob [31]

Answer:

-1/2

Step-by-step explanation:

y=mx+b is used to find the slope. The m part of the equation is the slope

7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%206%20%3D%20-%20%20%20%5Cfrac%7Br%7D%7B3%7D%20%20%20%5C%3A%20solve%20%5C%3A%20for%20%5C%3A%20
Fed [463]

r = - 18

multiply both sides by 3 to eliminate the fraction

3 × 6 = - r ⇒ 18 = - r ⇒ r = - 18



8 0
3 years ago
Read 2 more answers
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