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Stolb23 [73]
4 years ago
9

Estimate the area of a circle with a radius of 21 meters. Use 22/7 for pi. (1 point)

Mathematics
1 answer:
V125BC [204]4 years ago
5 0
A=\pir^{2}

A=(\frac{22}{7})(21^{2})

A=(\frac{22}{7})(441)

A=\frac{22}{7})(\frac{441}{1})

A=\frac{9702}{7}

A=1386 square meters

The answer is B.
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Help please !! thank youu
VLD [36.1K]

Answer:

d = √91 ft = about 9.53 ft

Step-by-step explanation:

use pythagorean theorem which is a²+b²=c²

(the hypotnuse which is opposite side of the right angle is always going to be C in the pythagorean theorem)

a = 3    b = ?     c = 10

(3)² + b² = (10)²

9 + b² = 100

subtract 9 from both sides

b² = 91

take the square root of both sides

b = ±√91

so the side d = √91 ft = about 9.53 ft

3 0
3 years ago
0.5, 0.55, 0.505, 0.005 from least to greatest
velikii [3]
0.5,0.55,0.005,0.505 is my answer



please can i have a brainliest
8 0
3 years ago
Read 2 more answers
Pls help asap for 13 pls and thank u
AysviL [449]
Answer:
The answer is 35.5 square units


Step-by-step explanation:

The shape represents a rectangle, a small triangle removed from it at the upper right corner and a bigger triangle is attached to it at the upper left corner.

We get this formula:
A(shape) = A(rectangle) - A(small triangle) + A(big triangle)
SO LET'S FIND EACH!

A(rectangle)= length x width
length= 8 units
width= 4 units
We get:
A(rectangle) =8x4= 32 square unit

A(small triangle)= (base x height)/2
base= 1 unit
height= 1 unit
We get:
A(small triangle) = (1x1)/2 = 1/2 = 0.5 square units

A(big triangle)= (base x height)/2
base= 2 units
height= 4units
We get:
A(big triangle)= (2x4)/2 = 8/2 = 4 square units

For the final result:
A(shape) = 32 - 0.5 + 4 = 35.5 square units


8 0
2 years ago
What is the next term in the sequence?<br> 2, -4, 8, -16, ...
worty [1.4K]

Answer:

32

Step-by-step explanation:

it multiplies by -2 every time

5 0
3 years ago
Write a compound inequality: a quantity of x is greater than 10 and less than 20
Rudiy27

The compound inequality is: x<20 and x>10

Given,  a quantity of x is greater than 10 and less than 20.

A compound inequality (also known as a compounded inequality) is created when two or more inequalities are coupled with and. One part of an inequality must be true for a value to be a solution to an or inequality. It must make both parts true in order to be the solution to an inequality. X<3 or X>2, for instance.

Divide a compound inequality into two independent ones before attempting to solve it. Choose either a union of sets ("or") and an intersection of sets as the appropriate response ("and"). Then, resolve the graph and all inequalities.

Simply put, a compound inequality is more than one inequality that we want to address simultaneously. When referring to the resolution of both inequalities, we can either use the term "and" or "or."

Learn more about Compound Inequality here:

brainly.com/question/234674

#SPJ9

5 0
1 year ago
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