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ahrayia [7]
2 years ago
13

A window has the shape of a rectangle with a semicircle at the top.

Mathematics
1 answer:
Sidana [21]2 years ago
7 0

Answer:

8+pi/2

Step-by-step explanation:

The area of the rectangle on the bottom is 8, or 2*4. The area of the top is half (because it's a semi circle) of pi*r^2, or just 1/2 pi

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Someone plz help!!!!!! ​
aliina [53]

Answer: X = 7√2

Step-by-step explanation:

Let first Consider triangle BDC,

Cos C = adjacent/ hypothenus

Cos C = 7 / x ...... (1)

Also, let consider triangle ABC

Cos C = adjacent / hypothenus

Cos C = x / 14 ....... (2)

Since angle C is the same, equate equation 1 to 2

7/ x = x / 14

Cross multiply

X^2 = 98

Make x the subject of formula

X = sqrt (98)

X = sqrt ( 49 × 2 )

X = sqrt (49) × sqrt (2)

X = 7 sqrt(2)

X = 7√2

8 0
3 years ago
What is 74,233 increased by 58,490
lawyer [7]
74,233 increased by 58,490 is 74,233 * 58,490 so its 4,341,888, 170. So 4 billion, 341 million, 888 thousand, 170.

Scientific notation is 4.34188817 * 10 to the 9th power.
8 0
3 years ago
Read 2 more answers
Find the largest prime factor of 18! + 19! + 20!
OlgaM077 [116]

Answer: Prime Factors for 18: 2, 3, and 3

Prime Factors for 19: 19

Prime Factors for 20: 2, 2, and 5

Can you mark brainlest

Step-by-step explanation:

6 0
3 years ago
On Monday, 341 students went on a trip to the zoo. All 6 buses were filled and 5 students had to travel in cars. How many studen
Otrada [13]

Answer:

If 4 students travelled in cars, then 341 - 5 = 336students travelled by bus.

 There were 5 buses.  336÷ 6 = 56

 There were 56 students on each bus.

3 0
3 years ago
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A bug lands on a windshield wiper blade before it is flung off. The wiper blade and arm assembly have a length of 30 inches. If
sveticcg [70]

Answer:

35.6047 inches

Step-by-step explanation:

The wiper blade moves in a circular way, where the radius is 30 inches.

To find how far the bug travelled, we just need to use a rule of three, where the length of the circunference relates to a angle of 360 degrees:

360 degrees -> 2 * pi * radius

68 degrees -> distance

distance * 360 = 2 * pi * radius * 68

distance = 2 * pi * 30 * 68 / 360 = 35.6047 inches

6 0
3 years ago
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