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Helga [31]
2 years ago
15

Pls help i will give brainliest

Mathematics
2 answers:
Flura [38]2 years ago
5 0
The answer is c. 28.26 cm^2
ryzh [129]2 years ago
3 0

Answer:

28.26

Step-by-step explanation:

A

=

π

r

2

=

π

·

3

2

≈

28.27433

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A snail sets out on a 3 3/5 -mile journey, traveling at a speed of 2/65 miles per hour. a. How many hours will the journey take?
fiasKO [112]

Answer:a)117 hours b)4.875days.

Step-by-step explanation:

Using the formula

Speed =Distance / Time

Given Distance = 3 3/5 -mile

and Speed=2/65  miles per hour.

Time =Distance / Speed

Time = (3 3/5)/(2/65)

Time =18/5÷2/65

Time =18/5 x 65/2 =117 hours

Now 24 hours =1 day

therefore 117hours =(117hours x 1 day )/ 24 =4.875days.

3 0
3 years ago
A G.P has its 3rd term and 7th term as 45 and 3645 respectively. what is the product of its 2nd and 4th
Ede4ka [16]

Answer:

2,025

Step-by-step explanation:

Given:

Third term ar² = 45

Seventh term ar⁶ = 3,645

Find:

ar x ar³

Computation:

From 7th term / 3rd term

ar⁶ / ar² = 3,645 / 45

r⁴ = 81

r = 3

So,

ar² = 45

a(3)² = 45

a = 5

So,

ar x ar³

(5)(3) x (5)(3)³

2,025

3 0
3 years ago
Find the slope of the line that passes through (4,-5) and (-2,9)
stiks02 [169]

Answer:

C) -7/3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(9-(-5))/(-2-4)=(9+5)/-6=14/-6

simplify -14/6 to -7/3

4 0
2 years ago
The width of a rectangular room is 80% of its length. If the length of the room is 20 meters, what is the area of the room? A= l
KIM [24]

Answer:320ft^2

Step-by-step explanation:

80% of 20 is 16, because 80% is 4/5 and 20 divided by 5 is 4, multiplied by 4 is 16. Area is L x W, so 16 times 20 is 320, and don't forget unit of measurement, ft^2 for area

7 0
3 years ago
Read 2 more answers
Kaley reads 6 graphic nwels fewer than Safara.
Misha Larkins [42]

Answer:      16

Step-by-step explanation:

We first find out the number of graphic novels that Kaley reads, we set the number as k.

3k = 30

k = 10

Then Kaley reads 6 graphic novels fewer than Safara, which means that we plus 6 to the number of graphic novels that Kaley read,

k + 6 = 10 + 6 =16

7 0
2 years ago
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