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kkurt [141]
3 years ago
14

1. Point (−5,8) is reflected across the line = . What are the coordinates of ′? Show your work and explain.

Mathematics
1 answer:
netineya [11]3 years ago
4 0

Answer:

(5,8) over y axis and (-5,-8) over x axis

Step-by-step explanation:

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Two cities have nearly the same​ north-south line of 117 degrees Upper W. The latitude of the first city is 29 degrees Upper N c
Mariulka [41]

Answer:

1117 km

Step-by-step explanation:

Because the two cities are approximately on the same North-South line, they are on the same longitude. The difference in their latitudes is 39° - 29° = 10°. We are subtracting because they are both in the northern hemisphere. The distance between them is

\dfrac{10}{360}\times2\pi\times6400 \text{ km} = 1117 \text{ km}

4 0
3 years ago
What is 5,820,000,000 written in scientific notation?
Ksenya-84 [330]

Answer:

C

Step-by-step explanation:

the decimal would have to move 9 times from the zero position to get to between 5 and 8.

so 5.82 x 10^9

5 0
3 years ago
Read 2 more answers
A publisher reports that 30% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is
Ierofanga [76]

Answer:

Test statistic = - 2.29

Pvalue = 0.0110

Step-by-step explanation:

The hypothesis :

H0 : p = 0.3

H1 : p < 0.3

Test statistic :

z=pˆ−p/√p(1−p)/n

pˆ = 0.2

Z = (0.20 - 0.30) / √(0.30(1 - 0.30) / 110

Z = - 0.1 / √0.0019090

Z = - 0.1 / 0.0436931

Z = - 2.29

Test statistic = -2.29

The Pvalue :

P(Z < -2.29) = 0.0110

4 0
3 years ago
What is 12/30 as a percentage?
Fittoniya [83]
12/30 * 100 would give you the answer.

Therefore 40% is the answer.

The reason to this is because you need 12/30 of percent (100)   
5 0
3 years ago
Read 2 more answers
Show BOTH distribution and FOIL to find the product of LaTeX: (3x - 2) and (2x + 6). also explain
Goryan [66]

Answer:

(3x-2)=1x (2x+6)=8x

Step-by-step explanation:

6 0
2 years ago
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