Mathematics Middle School

A circle has a radius of 50 cm. What is the circle's area? *
A 15, 708 square cm
B 7,850 square cm
C 157 square cm
D 314 square cm

Answers

Answer 1
Answer is b I think don’t bash if wrong
Answer 2
Circle area = π r²

r = 50 cm

area = (3.14) (50)²

area = 7850 cm²

Related Questions

Simplify) 2.34x +15 − 1.23x − 12

Answers

Answer:

1.11x +3

Explanation:

Simplification is the process of replacing a mathematical expression by an equivalent one, that is simpler (usually shorter), for example. Simplification of a fraction to an irreducible fraction. Simplification of expressions, in computer algebra.

five more than the product of two and a number, decreased by seven;

evaluate when a = 8

A 2-column table with 7 rows. Column 1 is labeled Key Words with entries five, more than, product, two, a number, decreased by, seven. Column 2 is labeled Replace with entries 5, +, times, 2, a, minus, 7.

Write and evaluate the expression. Then, complete the statements.

First, write the expression
.

Second,
8 in for the variable, a.

Third,
by using
✔ order of operations
.

The answer is
.

Answers

Answer:

First, write the expression

✔ 5 + 2a – 7

.

Second,

✔ substitute

8 in for the variable, a.

Third,

✔ simplify

by using

✔ order of operations

The answer is

✔ 14

5+ (2a-7)
= 5 + (2•8-7)
= 5 + (16-7)
= 5+9
= 14

Hi! Please help :) (will give brainliest <3)

Answers

PART A

A= 51 (vertically opposite)
B= 129 (angles on a straight line and supplementary angles)
D= 129 (vertically opposite)
W= 129 (corresponding angles)
X = 51 (co-interior angles, angles on a straight line, supplementary angles and corresponding angles)
Y = 129 (vertically opposite)
Z = 51 (supplementary angles, angles on a straight line)


PART B
Z and y are supplementary angles because they are on a straight line meaning they add up to 180 degrees.

Please help this is worth 15 points! Solve in y=mx+b from!

Answers

Answer:

The coordinates of every point on the line will solve the equation if you substitute them in the equation for x and y. The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept

Step-by-step explanation:

Y= 7/4x + 20 would be the answer

Help me Please!!!!!!!!!!

Answers

The answer is likely b

will mark brainliest. only answer if you know it. random answers will be reported.

Answers

Answer:

b = 17.55

Step-by-step explanation:

a^2 + b^2 = c^2

4^2 + b^2 = 18^2

16 + b^2 = 324

-16              -16

b^2 = 308

square root them

b = 17.55

let me know if it is correct!

Step-by-step explanation:

4^2 + h^2 = 18^2

16 +h^2 = 324

h^2 = 308

h = √308

h = 17.5499 ft

12 feet to 18 feet, what is the percent of change?

Answers

1.5% I think not 100 percent on that

Answer:

50%

Step-by-step explanation:

Think about it like this:

12 is considered the old value

18 is considered the new value.

There is a positive changed, or an increase because the new value is greater than the old value.

What is the value of x in the equation?

2/3(x + 6) = -18

1) -36
2) -33
3) -24
4) -18
Please helppppp, im on a test :)

Answers

Answer:

2) -33

Step-by-step explanation:

2/3(x+6)= -18

/(2/3)       /(2/3)

x+6= -27

-6     -6

x= -33

So 2) -33

x = -33 i'm pretty sure

The nature park has a pride of 7 lions and 9 cubs. The adults eat 9 pounds of meat each day and the cubs eat 4 pounds. Simplify 7 × 9 + 9 × 4 to find the amount of meat consumed each day by the lions.

Answers

Answer:

the answer to that question is 99

what value does the 8 represent in the number 865,202?

Answers

Eight hundred thousand

Step-by-step explanation:

hundred thousands

########$$$$$

Given the functions f(x) = 6x + 11 and g(x) = x2 + 6, which of the following functions represents f[g(x)] correctly?

f[g(x)] = 36x2 + 132x + 127
f[g(x)] = 36x2 + 132x + 121
f[g(x)] = 6x2 + 47
f[g(x)] = 6x2 + 36

Answers

Answer:

 LOL I  AM IN  6th  grade

Step-by-step explanation:

Given the functions f(x) = 6x + 11 and g(x) = x2 + 6, which of the following functions represents f[g(x)] correctly? f[g(x)] = 36x2 + 132x + 127 f[g(x)] = 36x2 + 132x + 121 f[g(x)] = 6x2 + 47 f[g(x)] = 6x2 + 36.

I’m thinking f[g(x)]=6x2 + 47

One of the triangles pictured is a rotation of triangle ABC and one of them is a reflection.

1. Identify the center of rotation, and label the rotated image PQR.
2. Identify the line of reflection, and label the reflected image XYZ.

Answers

1) the green triangle would be labeled PQR starting at the bottom angle and going counter clockwise
2) the red triangle should be labeled XYZ starting at the top angle and going clockwise

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!

Answers

Answer:

I think its A

Step-by-step explanation:

I believe the answer is 1260 correct if wrong

Write and simplify an expression to represent the perimeter of a rectangle whose length is twice the width.

Answers

Answer: 2x+4x

Step-by-step explanation:

Let's say x is the width, or the short side and 2x is the long side or length (since the long side is twice as long as the short side).

let's add those together.

x+2x

But with a perimeter, you have two short sides and two long sides. so let's multiply this expression by two.

2(x+2x)

multiply the two by each number.

2x+4x

Please help me on this! Thank you for those who help!

Answers

Answer:

Democrats are 44

Independent there is 1

Step-by-step explanation:

55 Republicans
44 Democrats
1 Independent

Since you know there are 5 republicans for every 4 democrats you can divide 55/5 and get 11. Then you would multiply 11 by 4 for the number of Democrats. Then you would add 55+44=99. So there would be 1 independent.

help with this question the question it
find the area of the figure sides meet at right angles

Answers

It would be 54675 squared yards because you would go around and do 3x3x5x3x5x3x3x9 you do the nine for the top 3+3+3

three times the cost of a pack and boots

a
2p + b
b
3(p + b)
c
3p x 3b

Answers

Answer:

C

Step-by-step explanation:

it would be probably be C

what is the equation of the additive relationship represented by this table.
Enter your answer by filing in the box using an integer.

X | Y
y = x + [_] 2 | 4
4 | 6

Answers

Answer:

sorry I did not mean to answer this i accidentaly clicked this. 0.0 i hope you don't get mad :(

Step-by-step explanation:

Your answer is y=x+2 because 2+2 is 4 and 4+2 is 6 so 2 is your rate of change

-7 - (-3) is equivalent to?
0-10
O-4
O 10
04

Answers

Answer:

The answer would be 0-4

Step-by-step explanation:

It is equivalent to -4

help me please its simple loool

which one is it

Answers

B- 1.23 You can do that whit an app name photomath :D

Answer:

1.23 is the answer

Step-by-step explanation:

Jackie is installing a circular hot tub into her patio. The hot tub will have a diameter of 78 inches.
How many square feet of the patio area will remain after the hot tub is completed? Express your answer to the nearest tenth.

Answers

Answer:

what was the size before the hot tub and I will be able to find out

Step-by-step explanation:

How big is the patio

Item 11
Write and solve an equation to answer the question.

91 is 130% of what number w?

Answers

Answer:

The answer is 70.

Hope this helps :)

-ilovejiminssi ♡

70, im pretty sure if my calculations are correct

The sides of a rectangle were reduced by 70% of their original dimensions. The area of the new rectangle represents what percent of the area of the original rectangle?

Answers

Answer:

49%

Step-by-step explanation:

0.7 ^ 2 = 0.49.

0.49 = 49%.

Will give Brainly lollllllll XD......................

Answers

Answer:

it looks like it would just be -1

Step-by-step explanation:

there two -x and two positive x which would cancel out. three positive 1 and four negative 1. -4+3= -1

that's the best I could come up with

Answer:

-1

Step-by-step explanation:

What is the surface area?

10 m
10 m
10 m

Answers

Answer:

10x10=100

100x6=600

600m2

Step-by-step explana30tion:

Answer:

600    your welcome

Becky uses 10 strawberries and 4 oranges to make 8 servings of fruit salad.
Drag oranges and strawberries into the box to show how many Becky needs to make 12 servings.

plzzzz help thx

Answers

Answer:

what do you need to know... bc i can't drag and drop anything on brainly

Step-by-step explanation:

Answer:

6 oranges needed per 12 servings

15 strawberries per 12 servings

Step-by-step explanation:

Hope it helps!

PLEASE HELP FAST!!! ITS EASY BUT NOT FOR ME!!
Which of these equations, when solved, gives a different value of x than the other three?
9.1 = -0.2x + 10
10 = 9.1 + 0.2x
10 – 0.2x = 9.1
9.1 – 10 = 0.2x

Answers

The answer is number 4
The equation that is different than the others or the first one

9.1=-0.2x+10

what value is equivalent to

​

Answers

Answer:

D

Step-by-step explanation:

2^3 equals 8, and 3^4 equals 81. 81 times 8 equals 648.

Answer:

648

Step-by-step explanation:

3^4 is 81 and 2^3 is 8 and 81x8=648

The spinner below shows 10 equally sized slices. Charmaine spun the dial 500 times and got the following results.

Answers

Answer:

1. 0.369

2. 0.4

3. dont know

Step-by-step explanation:

The answer for the 2nd one is 0.4

HELP ME IF YOU DO WILL GIVE YOU 5 STARS< A THANKS< BRAINLIEST :)

Answers

Answer:

look below

Step-by-step explanation:

Monday: answers are C and D  

Tuesday: answers are B, D, and E

Wednesday: answer is -150 times 3 = - 450

Thursday: I cant rlly show my work on the pc but the answer is 0.8125 and no it is not a terminating decimal.

Friday: answers are D and F

hope this helps

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