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ella [17]
2 years ago
11

A certain windshield wiper is 10 inches long. The rubber blade is 6 inches long and attached at the outside end. If the wiper sw

eeps through a 150 degree angle how much area is covered by the blade? State the answer in terms of
Mathematics
1 answer:
Sloan [31]2 years ago
4 0
Area of sector=fraction of sector times area of circle
fraction of sector=degrees/360
and area of circle=pir^2

so
hold  a sec, we have the wiper on the outside, so we want to find the outside ring thing
do
area big sector-area small sector
or even better
(degrees/360) times (area big-areasmall)
big is 10
small is  4 (10-6=4)
areabig=10^2 times pi or 100pi
areasmall=4^2 times pi or 16pi
areabig-areasmall=100pi-16pi=84pi

then find the fraction

84pi times (150/360)=35pi square inches
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Triangle ABC has vertices at A(2, 2), B(4,7), and C(6,2). Classify the triangle according to the side lengths.
zmey [24]

Answer:

Isosceles triangle

Step-by-step explanation:

Length AB

√(4 - 2)² + (7 - 2)²

√2² + 5²

√4 + 25

√29

Length AC

6 - 2 = 4

Length BC

√(6 - 4)² + (2 - 7)²

√2² + (-5)²

√4 + 25

√29

Length AB and BC is the same.

Length AC is the longest side.

Therefore, it is an isosceles triangle.

4 0
3 years ago
Boxes are stacked in a warehouse in 15 rows of 25, then stacked 4 boxes high boxes are there in total?
vichka [17]

Answer:

1500

Step-by-step explanation:

We have 15 rows of 25, so 15 x 25 is 375, and we multiply that by 4 since its stacked 4 high. We get 1500.

6 0
2 years ago
Read 2 more answers
Jack buys a bag of 5 apples each equal in size he eat 1/2 of one Apple what fraction did he eat
Karo-lina-s [1.5K]
You have 4\frac{1}{2} apples left. 
You have 5 whole apples, you took one whole apple out, which equals 4 whole apples left. Then with the whole apple you took out, you ate \frac{1}{2} of it.
 Jack ate \frac{1}{2} of an apple in 5 apples. 
If you say that Jack ate \frac{1}{2} of 3 apples, then he ate 1\frac{1}{2} apples. So there isn't any difference when he ate \frac{1}{2} of an apple.
5 0
3 years ago
Determine the equivalent system for the given system of equations.<br> 4x - 5y = 2<br> 3x - y = 8
kondor19780726 [428]
4x − 5y = 2
7x + 6y = 10
4 0
3 years ago
Helppppppppppppppppppppp
ivolga24 [154]

Answer: x=2

Step-by-step explanation: Solve for x in the first equation.

Hope this helps you out! ☺

8 0
3 years ago
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