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Kisachek [45]
2 years ago
11

Pls help me !!

Mathematics
1 answer:
kkurt [141]2 years ago
3 0

Step-by-step explanation:

area of circle - pie x r x r

22/7 x 7/2 x 7/2 ( 7 as diameter because it's straight line passing through centre)

77/2 is the sq inches

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If f(x)= 3x + 4, then what is f(-2)
iren [92.7K]

Answer:

f ( - 2 ) = - 2

Step-by-step explanation:

Step 1:

f ( x ) = 3x + 4        Equation

Step 2:

f ( - 2 ) = 3 ( - 2 ) + 4     Input x value

Step 3:

f ( - 2 ) = - 6 + 4       Combine Like Terms

Answer:

f ( - 2 ) = - 2          Combine Like Terms

Hope This Helps :)

6 0
3 years ago
A man buys a book for Rs 400 and sells it for Rs 420 his profit is​
motikmotik

Answer:

20

Step-by-step explanation:

420-400=20

6 0
3 years ago
Read 2 more answers
Chapter one course 2
Marysya12 [62]
What you need help with
8 0
3 years ago
I need this for my notes so i can know what to do. What is the length of AC? And Length of AB?
andre [41]

Answer:

AC 5

AB = 3

Step-by-step explanation:

AC = distance between the points

C-A = 3 - -2 = 3+2 = 5

The distance is 5

AB = distance between the points

B-A = 1 - -2 = 1+2 = 3

The distance is 3

8 0
3 years ago
Read 2 more answers
Find length of each side
IgorLugansk [536]

Option b: 10 in, 18.5 in, 31.5 in.

Explanation:

The three sides of a triangle are 2y+1, 3y+5 and 7y

The perimeter of the triangle is 60 in.

Since, Perimeter = all sides of the triangle

Let us add all the three sides to determine the length of each side.

Perimeter=2y+1+3y+5+7y

Substituting the value of Perimeter and simplifying, we get,

60=12y+6\\54=12y\\4.5=y

Substituting y=4.5 in the three sides of the triangle 2y+1, 3y+5 and 7y, we get,

2y+1=2(4.5)+1=10 in

3y+5=3(4.5)+5=18.5 in

7y=7(4.5)=31.5 in

Thus, the lengths of each side are 10 in, 18.5 in, 31.5 in.

8 0
3 years ago
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