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Tanzania [10]
3 years ago
13

The awnser I’m really have trouble finding a awnser

Mathematics
1 answer:
svlad2 [7]3 years ago
8 0
A = \pi r^2
C=2 \pi r
\pi r^2 = 50.24
\pi r^2/ \pi =50.24/ \pi
r^2 = 16
r=4
C = 2 \pi r
C = 25.13
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Fu Haifeng of China set a badminton world record with a smash of 332 kilometers per hour. A kilometer is about 58 mile.What is t
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Answer:

206 miles/hour

Step-by-step explanation:

1 kilometre per hour = 0.621 mile per hour

332 km/hr to miles per hour

= 332 km/hr × 0.621 miles per hour

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Approximately to the nearest whole number

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7 0
2 years ago
Find the surface area of the prism.
Vanyuwa [196]

Answer:

400cm²

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Total surface area of a prism includes the area of the top and bottom triangle sides of the prism, plus the area of all 3 rectangular sides.

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8 0
3 years ago
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Alina [70]

Answer:

<em>Sali's speed was 18.75 km/h.</em>

Step-by-step explanation:

Jane took 3.5 hours to cycle the 63 km.

As,  Speed= \frac{Distance}{Time} , so the speed of Jane will be:  \frac{63}{3.5} km/h = 18 km/h

Suppose, the speed of Sali is  x km/h

Sali caught up with Jane when they had both cycled 30 km.

So, <u>the time required for Jane to cycle 30 km</u> = \frac{30}{18}=\frac{5}{3} hours and <u>the time required for Sali to cycle 30 km</u>  =\frac{30}{x} hours

Given that, Sali started to cycle 4 minutes or (\frac{4}{60}) or (\frac{1}{15}) hours after Jane started to cycle. So, the equation will be.......

\frac{5}{3}-\frac{30}{x}= \frac{1}{15}\\ \\ \frac{30}{x}= \frac{5}{3}-\frac{1}{15}\\ \\ \frac{30}{x}= \frac{24}{15}\\ \\ 24x=450\\ \\ x= \frac{450}{24}= 18.75

Thus, the speed of Sali was 18.75 km/h.

8 0
3 years ago
When trying to find the best deal for items, you should ____
kodGreya [7K]
Question 1:

All provided options would give the best deal on an item

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Question 2:

When an item's price is knocked off by 15%, it means the item has only 85% of its original value left to pay. Hence, a discount of 15% means multiplying the original price by 85%

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6 0
3 years ago
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