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Rudik [331]
3 years ago
11

In 1945​, an organization asked 1490 randomly sampled American​ citizens, "Do you think we can develop a way to protect ourselve

s from atomic bombs in case others tried to use them against​ us?" with 770 responding yes. Did a majority of the citizens feel the country could develop a way to protect itself from atomic bombs in 1945​? Use the alpha equals 0.05 level of significance.
Mathematics
1 answer:
Schach [20]3 years ago
6 0

Answer:

1490/2= 745=50%  770>745 so  your answer is yes

Step-by-step explanation:

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Answer:

the answer is A he can complete both projects.

Step-by-step explanation:

3 0
3 years ago
4x²-y²=171 and 2x-y=9, value of 2x+y
11111nata11111 [884]
So you will need to solve for x and y before evaluating 2x+y....

2x-y=9, y=2x-9  now this will make 4x^2-y^2=171 become:

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4x^2-(4x^2-36x+81)=171

36x-81=171

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x=7, now we can use 2x-y=9 to solve for y...

2(7)-y=9

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y=5

now we know that x=7 and y=5, 2x+y becomes:

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14+5

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8 0
3 years ago
Describe 2 ways that an exterior angle of a triangle is related to one or more or the interior angles
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The 2 angles at a vertex are supplementary (one interior and one exterior) the exterior angle is = the the sum of the 2 remote interior angles..
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3 years ago
What is the solution to the following equation?<br><br> 5 + 3 (y - 4) = 4y +10
Umnica [9.8K]

Answer:

5 +3(y-4) = 4y +10

5 + 3y -12= 4y +10

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3y - 4y = 10 + 7

-y = 17

y= -17

8 0
2 years ago
Read 2 more answers
Use the table to answer the question.
Aleks04 [339]

Answer:

y = x ÷ x

Step-by-step explanation:

x = 13

y = 13 ÷ 13

y = 1

so y = x ÷ x

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