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sergey [27]
3 years ago
12

Haven't had luck with this question in the past and I need help.

Mathematics
1 answer:
ElenaW [278]3 years ago
3 0

Answer:

pi

Step-by-step explanation:

First find the area of a full circle with radius 2

A = pi r^2

A = pi 2^2

A = 4 pi

We know that this is 1/4 of a circle so take 1/4 of the area

1/4 A = 1/4 (4 pi) = pi

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sergij07 [2.7K]

Answer:

1

Step-by-step explanation:

6 0
3 years ago
An airplane is flying in still air with an airspeed of 475 miles per hour. The plane is climbing at an angle of 16°. Find the ra
Serhud [2]

Answer:

130.9 miles per hour.

Step-by-step explanation:

sine 16 = x / 475 where x = rate of gaining altitude.

x = 475 sin 16

= 130.9 miles per hour.

6 0
3 years ago
Help this is confusing
Novay_Z [31]
What is confusing???
7 0
3 years ago
To decrease an amount by 4% what single multiplier would u use ??
serg [7]

If you decrease something by 4 percent,

you are  keeping (100% - 4%) or 96% of the original

so multiply by the original amount by 96 percent or .96


If you have 100 pennies, and you  give 4 away ( 4 percent decrease), you still have 96 pennies.  You are keeping 96 percent of what you started with.  This works no matter how much you start with.


Example:


you have 40 dollars

4% decrease

40 * .04 =  1.6 take this away

40 - 1.6 = 38.4 left

you keep 96 percent

40 * .96 = 38.4 left

3 0
3 years ago
Read 2 more answers
Steve leaves the corner of First and Maple on his bicycle and travels an average speed of 9 mi/hr. Two hours later,his brother l
just olya [345]

Answer:

Two hours later his brother leaves from first and maple and comes after him on a moped travelling 27 mph, His uphill speed was 8 miles per hour slower than his downhill speed.

Step-by-step explanation:

3 0
3 years ago
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