MATHEMATICS HIGH SCHOOL

The circumference of a pizza is 75.36 in. What is the approximate area of the circle? Answers A.(113.04 in2)
B.(37.68 in2)
C.(1808.64 in2)
D.(452.16 in2)

Answers

Answer 1
Answer:

Circumference = diameter x pi

Find the diameter:

75.36 = diameter x pi

Divide both sides by pi:

Diameter = 75.36/3.14 = 24 inches.

Area = pi x r^2

R = 1/2 diameter = 12

Area = 3.14 x 12^2

Area = 452.16 in^2

The answer is D.

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How to write two hundred twenty five million,sixty thousand in number form

Answers

Answer:

225,060,000

Explanation:

1 million=1,000,000

2 hundred twenty five million=225*1 million=225,000,000

two hundred twenty five million,sixty thousand=225,000,000+60,000=225,060,000

Answer:

225,060,000.

Step-by-step explanation:

225 million = 225 * 1,000,000

= 225,000,000

This + 60,000

=  225,060,000.

Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, what is the value of A? Numerical Answers Expected! Answer for Blank 1:

Answers

Taking out the parentheses of expression
(5x2 + 3x + 4) − (2x2 + 5x − 1)

= 5x2 + 3x+ 4 -2x2 - 5x + 1

Grouping together the like terms and arranging the expression:
= 5x2 - 2x2 + 3x - 5x + 4 + 1

Combining the like terms:
= 3x2 - 2x + 5

Therefore,
A = 3

Answer: 3

Step-by-step explanation:

Solve the system using substitution.

y=6x-11
-2x-3y=-7

Answers

26=16x or x=1 5/8 because 6 and 11 are multiplied by 3
-2x - 3(6x - 11) = -7 Plug in the equation
-2x -18x + 33 = -7 Combine like terms
-20x + 33 = -7 Subtract
-20x = -40 Divide
x = 2

Hope this helps!!!

How do I evaluate -7 5/6 + (-7 1/4)

Answers