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Ray Of Light [21]
3 years ago
9

Please help me or i will fail

Mathematics
1 answer:
dusya [7]3 years ago
4 0
Find area of square: 7^2 = 49

Find radius of circle: 7/2=3.5

find area of circle: 3.5^2*3.14=38.465

Remove area of circle from area of square:
49-38.465=10.535 cm^2

Answer A is the correct one :)
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Just 5&4 please, will give brainliest and many pts
Finger [1]

Answer:

for 4 the slope is -3/2

x intercept is  1


for 5 the line described, the y intercept would be -4 and from there the slope would just go up at a slope of 5/2

5/2 as a slope means it will go up 5 units for every 2 units forward.

Step-by-step explanation:


8 0
3 years ago
The area of a regular hexagon is 15 cm2. What is the area of a similar hexagon with sides four times as large?
denis-greek [22]

Answer:

60 cm2

Step-by-step explanation:

15x4=60

8 0
3 years ago
Evaluate [(40 + 5) − 3^2] ÷ 9 ⋅ 2. (1 point)
Ostrovityanka [42]

Answer:

[(40 + 5) − 32] ÷ 9 ⋅ 2

[(45) − 32] ÷ 9 ⋅ 2

[(13)] ÷ 9 ⋅ 2

[(13)] ÷ 9 ⋅ 2

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1.4... ⋅ 2

_

2.8... ←Answer

Step-by-step explanation:

3 0
3 years ago
WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS
Tpy6a [65]
A² - 225 = (a-15)(a+15)
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7 0
3 years ago
Carolyn has $2.55 in her purse in nickels and dimes. The number of nickels is nine less than three times the number of dimes. Fi
Flauer [41]

Hi, the answer is ;

Answer:

12 dimes and 27 nickels

Step-by-step explanation:

.05N + .1d = 2.55

N= 3d - 9

0.05 (3d-9) + 0.1d = 2.55

0.15d - 0.45 + 0.1d = 2.55

0.25d = 2.55 + 0.45

0.25d = 3

D = 12

N = 3 (12) - 9

N = 36 - 9

N = 27

5 0
4 years ago
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