Mathematics Middle School

A circle has a diameter of 8. What is the area in terms of π?

Answer Choices:
4π
8π
16π
32π

Answers

Answer 1
16..
skdiskdkdixixoxjdjdj
Answer 2

Answer:

16π

Step-by-step explanation:

ooohhhh, that makes so much more sense, I wasn't actually supposed to substitute 3.14 for π, whoops, sorry

Related Questions

PLZ HELP!!! THIS IS TIMED!!!!!! PLZ HELP!!!!!!!!!!!!

Answers

Answer:

i think it is C

Step-by-step explanation:

Answer:

I'm pretty sure its B, I'm sorry if its wrong!

What is the probability of rolling an odd number on a number cube and tossing tails on a coin?

Answers

Answer:

4/8 or 1/2

Step-by-step explanation:

have a great day

Answer:

For Number 1 the odds of rolling an odd number on a number cube(assuming it has 6 sides) is 50%

For Number 2 the probability is also 50%

Step-by-step explanation:

For number 1 since there are three odd numbers 1,3 and 5 and three even number 2,4 and 6 so its a 50-50 chance

For Number 2 since a coin has 2 sides the chance is also 50-50

The sum of the lengths of is 25.82 cm. The length of is 5 cm and the length of is 14.7 cm. What is the length of and what kind of triangle is this?
A. 6.12 cm; scalene
B. 6.12 cm; isosceles
C. 6.22 cm; scalene
D. 6.22 cm; isosceles

Answers

Answer: A. 6.12 cm; scalene

I think

Step-by-step explanation:

that's the answer i got.

can someone tell me if this is right or not?

Answers

Answer:

i think ur good

Step-by-step explanation:

Answer:

You right

Step-by-step explanation:

the graph shows the solution to which system of inequalities?

Answers

Answer:

The orange one is the answer

Step-by-step explanation:

The easiest way to find the solution is to plug in one of the coordinates that is located in the shaded area into each equation. If the equations make sense, as they do in the orange option, you have your answer.

Hope this helps you!

Answer:

Step-by-step explanation:

I believe the first one

Ms. Cathy bought a package of pencils. Out of every 10 pencils, 5 are black. If there are 20 pencils in the pack, what fraction of the pencils in the pack are black? What percent of the pencils
in the pack are black?


Plzz help me

Answers

Answer:

there are 10 black pensoles

Step-by-step explanation:

Answer:

Fraction: 24/30 Percentage: 80%

Step-by-step explanation:

It might want a simplified version of the fraction, so the answer for that one could be 4/5. I hope this helps :)

A little help? I'll be handing out Brainliest to the correct answer ^-^

The question is in the photo below. I've typed the answers here.

Which statements are true about each person’s work? Select the four correct answer choices.
A. Tanisha correctly simplified the power of a product in her first step by adding exponents.
B. Tanisha’s next step is to apply the power of a product.
C. Tanisha’s work is correct.
D. Neal’s next step is to apply the quotient of powers.
E. The correct simplified answer is x^8/3y^8.
F. Neal's work is correct.

Answers

the correct answer would be a,c,d and f

Find the perimeter of the semicircular region. Round your answer to the nearest hundredth. 9 m The perimeter is about meters​

Answers

Answer:

about 23.14 m.

Step-by-step explanation:

1/2(pi)(d). d=9.  

so,

1/2(pi)(9)=4.5pim

then

4.5(pi)+9 is about 23.14m

A newly opened middle school’s enrollment is currently at 400 students. However, the school is implementing new programs and incentive systems to attract more students. They are projecting a 125% increase in enrollment for the upcoming school year.

How many students does the school project to have for the upcoming school year?


I DON'T need the answer, I need to know how you solved it, don't just look up the answer and say that.

Answers

500

Step-by-step explanation:

400 x 1.25 = 500 or just 400x0.25 +400

Answer:

900

Step-by-step explanation:

400x1.25=500

500+400=900

Write an equation to model the statement the product of – 8 and (y + 3) is 32.
How you can use the equation to reason about the value of y?

PLS HELP! I WILL GIVE BRANLY

Answers

Answer:

-8*(y+3)=32

Step-by-step explanation:

y+3=32/-8

y=32/-8 -3

y = -7

The equation to model the statement is -8(y + 3) = 32 and the value of y is -7.

What is an Equation?

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.

Given statement is  the product of – 8 and (y + 3) is 32.

Product means the operation is multiplication.

So the equation can be written as,

-8 (y + 3) = 32

Dividing both sides by 8,

-(y + 3) = 4

y + 3 = -4

y = -4 - 3 = -7

Hence the value of y is -7.

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What is 4x + 10 = -26

Answers

Answer:

x = -9

Step-by-step explanation:

I'm assuming you're looking for X.

So first, you'll want to subtract 10 from both sides of the equation.

4x + 10 = -26

    - 10  |  -10

4x = -36

Then from there, you'll want to divide by 4. This allows us to get x by itself.

4x = -36

/4  |   /4

x = -9

The value of 'x' is -9 in the given equation.

To solve the equation 4x + 10 = -26, follow these steps:

Step 1: Isolate the variable term by subtracting 10 from both sides of the equation.

4x + 10 - 10 = -26 - 10

4x = -36

Step 2: Solve for 'x' by dividing both sides of the equation by 4.

4x / 4 = -36 / 4

x = -9

So, the value of 'x' is -9.

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hiya answer this plz

Answers

Yep, the answer is definitely 13

Add 1.5×107 to 2.7×109.

Group of answer choices

1.527⋅109.

2.715⋅109.

2.715⋅107.

1.527⋅107.

Answers

The answer is 2.715•107 I’m sorry if I would but that’s what I got

Answer:

Step-by-step explanation:

454.8 is my answer and i used a calculator sorry

pls help asappppppppppppppppppppppppppppppppppp

Answers

They sold 168 pizzas.
Multiple 4 by 12 (a dozen). That’s how many they sold that afternoon. In the afternoon they sold 2.5 times 48 pizzas. that gives you 120. They sold 48 in the afternoon and 120 that night. You would add those in order to get how many they sold that day: 168. Let me know if you have any questions :)
168 pizzas because I did this before and got it right:)

1. A relationship between x and y is shown on the coordinate grid below. What is an equation that could be used to find any y value if given an x value?

Answers

that link is a virus be careful my man

What is the absolute value of the given number?

l -12.9 l

The lines on the outside box it for show what the number is.

Answers

12.9 is the absolute value

Answer:

12.9

Step-by-step explanation:

Try using Desmo.

plz help me

10 points

Answers

Answer:

I think b

Step-by-step explanation:

because 2x + 2x = 4x and 5 + 3 = 8

Answer:

C

Step-by-step explanation:

Area = LxW

Area = (2x+5)(2x -3)

2x · 2x = 4x²

5 · (-3)  = -15

= 4x² - 15

I hoped that helped!!

Will Give Brainliest! And 5 stars









Solve for X

Answers

Answer:

x = 44

Step-by-step explanation:

These angles are supplementary so that means they add up to 180:

47 + 3x + 1 = 180

3x + 48 = 180

3x = 180 - 48

3x = 132

x = 44

47 + 3x + 1 = 180
48 + 3x = 180
3x = 132
x= 44

ANSWER:
X=4

Write the unit rate for 1400 words for every 4 pages.

Answers

Answer:

350 words per page

Step-by-step explanation:

1400 divided by 4= 350

Hope this helps!

Pls help!
What measure of center best represents the data set?
Drag and drop the correct answer into the box.

Data Set
{37, 39, 38, 78, 36}
A) mean only
B) median only
C) mode only
D) mean or median

Answers

Answer:

the median only

Step-by-step explanation:

Median only
Because if you use the mode the outlier will mess everything up

I NEED TO TURN THIS IN ASAP PLEASE HELP!!

The data set shows the individual scoring totals for the players on the losing team in the 2012 NBA Finals.

Answers

The median is 7.5
The lower quartile is 1.5
The upper quartile is 14.5

Answer:

Median: 7.5

Lower Quartile: 1

Upper Quartile: 12.5

Step-by-step explanation:

First, arrange the numbers in numerical order.

0,0,1,2,3,7,8,11,13,16,27,32

Now find the middle of the data set, which is 7.5, because you add the 2 middle numbers (7 and 8) and then divide by 2. So your median is 7.5

Now you need to find the medians of the upper and lower quartiles. Spilt the data set into thirds.

(0,0,1,2),(3,7,8,11),(13,16,27,32)

Now find the medians.

For the lower quartile, the median is 1. For the upper quartile, the median is 12.5 .

Please let me know if this correct!! Have a great day!! :)

will make brainlyest
Which expression is equivalent to 3−1/2+2 2/3−5/6?
A. 2 1/6−2 1/6
B. 5/6+2 1/6
C. 2 1/6+2 1/6
D. 2 1/6−5/6

Answers

Answer:

the answer is c

Step-by-step explanation: c

The correct answer is C!
Hope it helps!

Craig won a first prize in Mrs. Taft’s class so he gets to pick a prize from the treasure box. He doesn’t know what he wants, so he is going to choose randomly. There are 7 different gift card prizes: Mcdonald’s, Cold Stone, Walmart, Target, Dollar Tree, Starbucks, and Dave and Busters. If there is an equal number of each card in the box, what is the probability he will pull out the gift card for Dave & Busters?

A) 1/7
B) 6/7
C) 1/2
D) 0/7

Answers

A because he has a 1/7 chance
I think it’s a but I’m not sure so keep trying

PLEASEEEEEEEEEEEEEEE HELPPPP ME :))

Answers

im pretty sure the answer is C
The answer is B. Jennifer read 225. And if you add Jennifer’s and Nelson’s together you get 465. But you need to multiply 465 x 4. Which is 1,860

Draw the polygon with the given vertices in a coordinate plane.(2,2),(3,712),(8,712),(10,4),(7,0)

Answers

Answer:

can u give us an online platform to draw it

Step-by-step explanation:

Answer:

Step-by-step explanation:

Samantha leaves her house and drives 18 kilometers east to her friend's house. She then drives north to school. Finally, she drives 30 kilometers directly home, in a straight line, from school. A map of Samantha's route is provided below.

How far does Samantha drive traveling from her friend's house to the school?

A.
42 kilometers

B.
12 kilometers

C.
35 kilometers

D.
24 kilometers

Answers

Answer:

the answer is D) 35

Step-by-step explanation:

use the formula b²×h²

The distance travelled by Samantha from her friend's home to school will be 24 KM

What is pythagoraean theorem?

The Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the square of the other two sides.

Here Samantha is travelling in a right-angled triangular path so the distance between Samantha's school and her friend's home will be calculated as:-

H² = P²+B²

(30)² = x²+(18)²

x²= 900-324=576

x=√576

x=24 KM

Hence the distance travelled by Samantha from her friend's home to school will be 24 KM

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After an awards show, Miller has these leftover flowers: 163 carnations, 240 daisies, and 189 lilies. If he uses all of these in a Flower Flash, what percent are daisies?​

Answers

To find the percent, you must use the formula part/whole x100
So we must find the whole...
163+240+189= 592
Now we put the number of daisies over the whole
240/592= 0.405405405405405
Then multiply is by 100 to make it a percent

40.5%

hiya boys answer this for a chance to get a cookie

Answers

Answer:

∠4 = 102°

Step-by-step explanation:

∠4 = 180 - 78 = 102°

Answer:

The answer is 3 (112 Degrees).

Step-by-step explanation:

Search it up-

Wheres my cookie- :D

will mark brainliest expression 9(2j + 7 + 5j).

use mathematical properties to create two expressions that are equivalent to the expression you created in Question 1. Make sure you show all steps in your work.

Answers

First expression is 63j + 7 that’s all I know


Explaination

9x 2 = 18j
9x5= 45j

45j+ 18j=63j+7 ( the seven isnt added to 63 because it has no variable)

If a number becomes 2.5 times smaller, by what percent was it decreased?

Answers

Answer: 40%

Step-by-step explanation: 1 Divided by 2.5 is 0.4, or 40%.

The number decreased by 150%

What are percentages?

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”

Given here a number becomes 2.5 times smaller than let the number be x then the value of the number the decrease is = x - 2.5x

                                                                            = -1.5x

Thus the percentage decrease is = -1.5x/x × 100

                                                        = - 150%

Hence, The number decreased by 150%

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