Mathematics Middle School

don’t know how to solve these :l

Answers

Answer 1

Answer:

452.16 cm²

Step-by-step explanation:

3.14 × 12² = 452.16 cm²

Answer 2

Answer:

452.16

Step-by-step explanation:

Comes down to knowing the Area of a Circle formula- A = πr².

A = area

r = radius, in your case, 12

A = π(12)² = 452.16cm²

Related Questions

This is worth 15 points please help. What is the equation in y=mx+b. Read the directions correctly, please.

Answers

Answer:

y= 0.75x+2.50

Step-by-step explanation:

the answer to this is y=0.75x+2.50

The two triangles below are similar. To the nearest tenth, what is the measurement of the missing side?

A. 4.1 units
B. 2.7 units
C. 1.5 units
D. 0.9 units

Answers

The answer is B, 2.7 !!!!

During bowling practice, Marley rolled 14 strikes out of 70 attempts. What percent of Marley’s attempts were strikes?
(if you answer this may you please show your work)

Answers

Answer:

no.

Step-by-step explanation:

the correct answer should be 20. what you do is divide 70/14 i think

divide 14 by 70 which is 0.2 and then multiply it by 100 to find the percentage, which is 20%

Please help me with question number 3!

Answers

Answer:3.0> 2.08

Step-by-step explanation:

Answer 3.0>2.08 it’s right

What is 4 superscript 5 written in expanded form?

Answers

If this is an exponent, it would be 4 x 4 x 4 x 4 x 4 in expanded form.

Answer:

4×4×4×4×4

Step-by-step explanation:

It is in expanded form.

PLEASE ANSWER ASAP FOR BRAINLIEST
Simplify each exponential expression using the properties of exponents and match it to the correct answer.

Answers

Answer:

Step-by-step explanation:

The one all the way on the left is 1. The one next to that is 1/3. The middle one is 3. The one to the right of the middle is 1. The one to the right is 1/3.

Choose ALL that are less than 4%.

Answers

Answer:

-√23×10^-2⅓0

Step-by-step explanation:

3×10^-2=0.03

⅓0=0.03

-√2=-√2 and (4%=0.04)

Please distribute 3 ( 2x + 3y)

Answers

Answer:

6x+9y

Step-by-step explanation:

Juanita has 3 rectangular cards that are 3 inches by 9 inches. How can she arrange the cards, without overlapping, to make one larger polygon with the smallest possible perimeter? How will the area of the polygon compare to the combined area of the 3 cards?

Answers

Pu 2 together straight up then one above it sideways

Will mark brainliest

Answers

Answer:

Step-by-step explanation:

Kathryn is cooking pancakes. The recipe calls for 3 2/9 cups of flour. She accidentally put in 5 4/5 cups. how many extra cups did she put in?

Answers

subtract
29/5 - 29/9
261/45 - 145/45
116/45

Answer

So basically you need to subtract 5 4/5 - 3 2/9

then you do all this:

= (5-3) + (4/5 - 2/9)

= 2+ 4x9/5x9 - 2x5/9x5

= 2 + 36/45 - 10/45

= 2 + 26/45

= 2 26/45

So then the answer is 2 26/45

2 over 3 to the power of 2 + 5 × 2 − 4

Answers

Answer:

6.22 or 6 1/5

Step-by-step explanation:

Write a real world problem involving multiplication by a decimal factor.Then solve the problem. Write the real world problem and solve

Answers

Sample question:

Aimee bought 2 CDs each costing $11.95 and 3 CDs each costing $6.48. She paid with a $50 note. How much change did she receive?

Answer:

2 × 11.95 = 23.9

3 × 6.48 = 19.44

Total spent = 23.9 + 19.44 = 43.34

Change = 50 - 43.34 = $6.66

Answer:

if an article was bought by Amina for 2Kobo and John bought articles for 8Kobo how many articles did John buy?

1 a=2k

x a=8k

cross multiply

8k × 1 = 2k × x

8k=2k

The scale of a drawing is 3 cm : 15 m. What is its scale factor?

Answers

Answer:

1cm=5m or 3:1500

Step-by-step explanation:

5 cuz 15 divided by 3 is 5

Ruby says that 4/5 divided by 2/15 = 14/15. What error did Ruby make? A. Ruby added instead of divided. B. Ruby divided 2/15 by 4/5 instead of 4/5 by 2/15. C. Ruby divided by 2 instead of dividing by 2/15. D. Ruby multiplied by 2/15 instead of 15/2 multiplying by .

Answers

Answer:

A. Ruby added instead of divided

Step-by-step explanation:

You must find a common denominator (15), and then multiply by the reciprocal and simplify your final answer

12/15 times 15/2 equals 180/30 which, when simplified equals 6

Ruby added 4/5 and 2/15 instead of dividing. Option A is correct.

What is simplification?

Using mathematical operations it is to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
Ruby says that 4/5 divided by 2/15 = 14/15, which is incorrect.
4 / 5 divided by 2/15 is 6,
When we add both numbers,
= 2 / 15 + 4 / 5
= [2 + 12] / 15
= 14 / 15

Thus, Ruby added 4/5 and 2/15 instead of dividing. Option A is correct.

Learn more about simplification here:

https://brainly.com/question/12501526

#SPJ2

1.) Mr Rick can eat 12 dove chocolates every time Mr. Jones eats 7.

2.) Mr. Jones and Mr. Brown had a hot dog eating contest. For every 3 hotdogs Mr. Jones ate, Mr. Brown could eat 5. What is the ratio to Mr. Brown and the total hot dogs in all?

Answers

Answer:

12:7 and 5:8

Step-by-step explanation:

first one just put the 2 together and the second one you have mr. brown and then the second number add the 2

12:7 and 5:8 that’s the anwser

!!!!!!!HELP PLS!!!!!!

Answers

Answer:[tex]\boxed{\boxed{\sf{The~first~step~is~divide~both~sides~by~3.}}}[/tex]Solution Steps:

______________________________

1.) Divide both sides by 3:[tex]3[/tex] ÷ [tex]3=[/tex] Cancels Out[tex]12[/tex] ÷ [tex]3=4[/tex]2.) Subtract 2 from both sides:[tex]2-2=[/tex] Cancels Out[tex]4-2=2[/tex]

So your answer is [tex]\bold{x=2}[/tex].

______________________________

It’s the first one or 2

brainliest if correct eep -.-
A.
B.
C.
D.

Answers

it’s c cuz u multiply everything by 2 and get bh=2A then divide by h for b=2A/h

It’s c because everything is suppose to be multiplied by 2

PLS HELP ASAP 30 POINTS

Answers

Answer: The probability that Sandra will choose a blue marble from the bag is 2 out of nine, or 2/9.

It is unlikely

Step-by-step explanation: :p

Answer:

its unlikely

Step-by-step explanation:

its a 2/9 chance

What is the elevation of a city 2,456 feet above sea level?

Answers

Answer:

+2,456

Step-by-step explanation:

Good Luck

2,456 is your answer

Write in exponential form

8= ?

Answers

Answer: 2.08

Step-by-step explanation:

It’s 8 and 1 on top the 8

What is the radius and diameter of the following circle?

Answers

Answer:

Radius is 11 and diameter is 22

Step-by-step explanation:

The diameter is the radius times 2 and the radius is always the line going from the outside of the circle to the middle. Also the diameter goes from one end of the circle to the other.

The radius is in the picture, the diameter is 22 because it’s double the radius

PLSS Help me find the area of that shape, ONLY ANSWER IF YOU KNOW THE ANSWER, BRAINLIEST!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

the whole thing is 48 and the part with the dotted line is 74 hope this helps you out

Answer:

area 122

Step-by-step explanation:

A 25 inch line segment is translated up 5 inches and to the left 10 inches. How long is the resulting line segment?

Answers

Answer:

20 inches

Step-by-step explanation:

+5 and -10

Answer:

5 -10

Step-by-step explanation:

this was on my unit test

All right this is for some help on my homework! They are a bit hard and any fake answers will be reported just because I really need this help and not fake help! WILL MARK BRAINLIEST TO THE FIRST PERSON
1. Your family eats dinner at a restaurant for a total bill of $45. You decide to leave the tip of 18%. How much money will you leave for the server? Do not label your answer.
this question has FOUR parts yes FOUR
2a.You are shopping for a video game system. What is the cost of the video game system from Store A? Do not label your answer. The Cost to Store is 162$ and the Markup is 40%
2b. You are shopping for a video game system. What is the cost of the video game system from Store B? Do not label your answer. The Cost to Store is 155$ and the Markup is 30%
2c. You are shopping for a video game system. What is the cost of the video game system from Store C? Do not label your answer. The Cost to Store is 160$ and the Markup is 25%
2d. Which Store should you buy the video game system from to get the best deal?

3. Mr. and Mrs. Smith pay their babysitter a total of $70. They decided that she did such a good job that they are going to give her a 32% tip. How much total money will they pay the babysitter? Do not label your answer
LAST QUESTIONNNN
4. You get a job selling scooters and you are paid 8% commission for all of your sales. If you sold $5,450 in sales this month, how much commission would you earn? Do not label you answer.

Answers

Answer:

1.Tip amount-$8.10 Total amount-$53.10

2a.$226.40

2b.$205.50

2c.$200.00

2d.Store C because it has the cheapest price and you'll get a better deal.

3.$92.40

4.$436

Step by Step explanation:

Multiply the cost by the percentage then add IF NEEDED

Fred and Wilma have a booth at the county fair. Fred is selling bowling balls, and has made $129. Wilma is selling bowling shoes for $20 per pair. Write the expression that represents the total amount they would earn at the fair.

Answers

Answer:

129 + 20p

Step-by-step explanation:

Answer:

so you would add $129 to $20 then you add p to the $20 because it doesnt say how many pairs he sold so we need to add an exponent. But then you need to put all that into and equation whihc leads you to get the answer of

129+20p

Find the whole.

10% of ( space) is 14.

Answers

Answer:

140

Step-by-step explanation:

Let x be the (space). Then, 10% * x = 14.

Solving for x, we get:

10% * x = 14

0.1x = 14

x = 140

The principal amount (p) is $100 The interest rate (r) is 5% Time in years (t) is 3

Answers

Answer:

115.76

Step-by-step explanation:

I'm going to assume that the interest is compounded annually

We have the following equation

P(1+r)^n

We have

100(1+.05)^3

compute this with a calcuatlor and get 115.7625 which is 115.76

there are instructions on the sheet. pls give in order. 20 points because double the answers so no point stealing!

Answers

1) the answer is 30
2) the answer is 10
3) the answer is 17
4) the answer is 6
comment if you want a explanation:)

30
10
17
6
Hope this helps!

A clothing store pays $15 for a shirt. The percent of markup is 85%. Find the selling price.

A.
$27.00

B.
$16.28

C.
$15.85

D.
$27.75

Answers

B
is the answer, hoped that helped my friend

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