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WINSTONCH [101]
3 years ago
6

Decrease £189 by 38%

Mathematics
1 answer:
Trava [24]3 years ago
7 0
I believe it would be around 117.18
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The probability that a single radar station will detect an enemy plane is 0.65. (a) How many such stations are required to be 98
Inga [223]

Answer:

4 stations

Step-by-step explanation:

If we need to be at least 98% certain that an enemy plane flying over will be detected by at least one station, we must ensure that there is at most a 2% chance that no radar stations detect the plane.

The probability that a single radar station does not detect the plane is 0.35.

For n radar stations:

P=0.02=0.35^n\\n=\frac{log(0.02)}{log(0.35)}\\n=3.73

Rounding up to the next whole station, at least 4 stations are needed.

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3 years ago
Use a 10-square model to solve. 12 is 10% of what number?
mestny [16]
I think the answer is 240 tho im not completely sure

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3 years ago
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Directions: Find the Surface Area
kenny6666 [7]

Answer:

Surface area = 92 ft²

Step-by-step explanation:

Formula to find the surface area of a rectangular prism is,

Surface area = 2(lb + bh + hl)

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h = height of the prism

By substituting the measures of the sides given in the picture,

Surface area = 2(2×3 + 3×8 + 8×2)

                      = 2(6 + 24 + 16)

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Therefore, surface area of the given rectangular prism is 92 ft².

4 0
3 years ago
The right rectangular prisms are similar.
Phoenix [80]

Answer:

A, B, E

Step-by-step explanation:

5 0
3 years ago
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9.<br> Kyle ran 150 feet in 15 seconds, how many hours would it take him to<br> run 30 miles?
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She runs 30 miles in 3 seconds
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