Mathematics Middle School

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Answers

Answer 1

Answer:

No, because 2^28 is equal to 2x2 28 times, not 28x2. This means that the answer will be 268435456.  

Step-by-step explanation:

Answer above

If this has helped you please mark as brainliest

Answer 2

Answer:

no, exponents are how many times the base is used, it would be 2×2×2... so on until there are 28 2s

Related Questions

Plz help me thank you

Answers

Answer:

answer is 1/100, 1/100, and 100

Answer:

0.5 is 1/100 times 50. 0.005 is 1/100 times 0.5. 50 is 100 times 0.5

Step-by-step explanation:

                         HOPE THIS HELPS YOU!!!!!! :) :) :) :) :)

                           SORRY IF IT IS WRONG. :) :) :) :) :)

What is the length of a car if the length on the scale model car is 17cm and the scale is 2cm : 50cm?

Answers

425 cm. The ratio is 17 : x is equal to 2cm : 50cm. You use cross multiplication to solve. 17 times 50 = 2 times x.
850 = 2x
425 = x

a=1/2pa, solve for p
NO LINKS PLEASEE!! IM BEGGING YOU NO LINKSS!!!

Answers

Answer:

A = (1/2)Pa = Pa/2

 

You can multiply both sides by 2 to eliminate the fraction on the right side:

 

2A = 2(Pa/2) = Pa

 

Then divide both sides by a (or multiply both sides by 1/a) to leave P alone on the right side:

 

(2A)(1/a) = 2A/a = (Pa)(1/a) = P

 

Rewriting:

 

P = 2A/a

 

You could also have divided by a first then multiplied by 2; which you should do first does not matter in this example.

Step-by-step explanation:

A music store bought a CD set at a cost of ​$20. When the store sold the CD​ set, the percent markup was ​%20. Find the selling price.

Answers

Answer:

$24

Step-by-step explanation:

20 * (1 + 0.2) = 24

Answer:

22

Step-by-step explanation:

20+ 20% =22

20% is 0.2 so your answer is 22 dollars

If 30% of a number equals 8, find 90% of that number.

Answers

Answer:

8.88

Step-by-step explanation:

I believe it is 8.88 becuase this question is asking to find 90% pf that number.  

What do you need to do?

you have to make a proportion.

8/x 90/ 100

You would now cross multiply. 90* x = 90x 8*100= 800

the equation you would need is 90x = 800. divide them and you get 8.88.

ROUNDED: you get 9.

I believe this is correct sorry if it was incorrect.

anwser: 8.88



step by step explanation;

Name this Solid

pentagonal prism
pentagonal pyramid
hexagonal prism
hexagonal pyramid

Answers

Answer:

hexagonal pyramid

Step-by-step explanation:

i think its this but otherwise pay attention in class

the answer is hexagonal pyramaid !

Jasraj left his house and walked 1500 m east to the supermarket. He then walked another 500 m east to the comic store before walking back home the same way he came. How many kilometers did Jasraj walk altogether?

Answers

Answer:

Jasraj walked 4 kilometers all together

Step-by-step explanation:

First, add.

1,500 + 500 = 2,000

Then, multiply by 2.

2,000 × 2 = 4,000

Now, we have to convert to kilometers.

1 kilometer = 1000 meters

4,000 ÷ 1,000 = 4

So, Jasraj walked 4 kilometers!

Have a wondeful day! :)

Help Asap Pls Hurry I Will Give Brainliest!

Answers

the answer is B
step by step explanation:
Triangle with 5,7, and 9 inches.

Find the median of the following numbers:

first set: 33, 36, 38, 29, 40, 44

and

second set: 13, 26, 19, 22, 25


Thank you!!

Answers

the first one is 37 and the second one os 22
Mark me brainliest
First set/ 36.6
Second set is 21

Find the mean absolute deviation for the data in the table. Round to the nearest tenth if necessary.

Answers

The answer is 2 so click A

order the quadratic equations from the widest to narrowest graph.

f(x)= -2x^2 + 4 , f(x)=x^2 - 2x +4 , f(x) = - 2/3x^2

Answers

Answer:

f(x)=2x53it[4p[

Step-by-step explanation:

Answer:

f(x)=2x53it[4p[

Step-by-step explanation:

Please answer this. Thank you!

Answers

Answer:

8: 73.2 cm

10: 738 mm

Step-by-step explanation:

8: A= 12.2 (4.5 + 7.5) / 2 --> 146.2 / 2 = 73.2 cm

10: A= 36 (22 + 19) / 2 --> 1,476 / 2 = 738 mm

Answer:

8: 73.2

10: 738

Step-by-step explanation:

Area of a trapezoid = [tex]A=\frac{a+b}{2} h[/tex]

where a and b = base lengths and h = height

For #8

These are the given dimensions

Base 1 = 4.5

Base 2 = 7.5

Height = 12.2

All we have to do is plug in the values into the formula

So....

[tex]A=\frac{4.5+7.5}{2} 12.2\\4.5+7.5=12\\\frac{12}{2} =6\\6*12.2=73.2[/tex]

Hence the answer is 73.2cm²

For #10

Once again all we have to do is plug in the values into the formula

[tex]A=\frac{22+19}{2} 36\\22+19=41\\\frac{41}{2} =20.5\\20.5*36=738[/tex]

Hence the answer is 738

pls help asap !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Just use Brainly

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Ooodidjdjd
The ends of the box are the most used numbers (24 & 28) so the first option is correct.

pls help. quickly please

Answers

Answer:

10 months.

Step-by-step explanation:

1200 + 25x = 1450; x = 10

Maggie is buying a jacket. The expression shown represents the sales tax on the jacket price, j.

0.08j
Write an expression in terms of j to represent the total amount that Maggie spends on the jacket, including tax.

Answers

Answer: 1.08j

Step-by-step explanation: if we add 8% of something to itself, we now have 108%, right

1.08j

I’m not 100% sure tho

The expression represents the total amount that Maggie spends on the jacket, including tax is 1.08j.

What is Percentage?

A percentage is a way to describe a part of a whole. such as the fraction 1/4 can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

As it is given that the cost of the jacket is j, while the tax on the jacket is 0.08j. therefore, the total cost of the jacket can be written as the sum of the cost of the jacket and the tax on the jacket.

Thus, the total cost of the jacket = Cost of jacket + Tax on the jacket

                                                       = j + 0.08j

                                                       = 1.08j

Hence, the expression represents the total amount that Maggie spends on the jacket, including tax is 1.08j.

Learn more about Percentage:

https://brainly.com/question/6972121

NEED HELP ASAP!!!!!!!

Answers

Answer:

1. Four thousand five hundred ten

2. 51.65 rounded to the nearest whole number is 52.

3. 2622 divided by 3 = 874

4. [tex]6940 / 10^{2}[/tex] = 69.4

5. 3/4 x 5 = 3.75 or [tex]3\frac{3}{4}[/tex]

6. (2 x 7) - (2 x 5) = 4

7. The area is [tex]\frac{6}{7}[/tex]

8. 70 - (20-13) would probably work

Please give my brainliest if I helped!

Which two parallelograms have the same area?

Answers

Answer:

Idc

Step-by-step explanation:

I don’t really wanna help, so thanks for the points! Don’t scroll down! I’m warning you!!!

Figure 1 and Figure 4 have the same areas because the area of a parallelogram is just length times width.

Figure 1: 15×4=60 cm

Figure 2: 18×3=54 cm

Figure 3: 11×6=66 cm

Figure 4: 12×5=60 cm

As you can see, figure 1 and figure 4 have the same areas. So, C is the correct answer.

The answer is figure 1 and 4

5.2 times 9.3 times what equals 120.9 ?

Answers

Answer:

5.2x9.3x2.5=120.9

hope this helps have a great day :3 also can i get brainliest ty

Answer:

2.5

Explanation:

5.2×9.3×2.5=120.9

I got the answer by multiplyinh 5.2×9.3=48.36 then i divided 120.9 by 48.36 to get the answer which is 2.5

I really need this no links or report but mark brainliest i do answer correctly

Answers

Answer:

A. n= 11/2, its a fraction of 11 over 2

B. n=11

Step-by-step explanation:

it's really hard to explain, but it is a series of steps needed to make the denominator equal to eachother, canceling them out and solving for n.

A student is using a spinner with four equal sections numbered 1 through 4. He also tosses a fair coin. What is the correct sample space for this compound event?

A. {H, T}

B. {(HT, 1), (HT, 2), (HT, 3), (HT, 4)}

C. {(1,H), (2,H), (3,H), (4,H), (1,T), (2,T), (3,T), (4,T)}

D. {1, 2, 3, 4}

Answers

Answer:

C. {(1,H), (2,H), (3,H), (4,H), (1,T), (2,T), (3,T), (4,T)}

anwser: C


stwo by step explanation:

what is the value of 3^3 + 7(2x -6), when x=4?

Answers

Answer:

The answer is 41.

Step-by-step explanation:

We plug in 4 for X:

3^3 + 7(2(4) -6)

The answer is 41.

The answer is 41 you should have just went to

Pease no links i would just like the answer ASAP


The volume of a right rectangular prism is 70 7/8 cubic feet and its base is a square with a side length of 4 1/2 feet. what is the height?

Answers

Answer:

7/2 feet

Step-by-step explanation:

Volume of Right Rectangular Prism: V = w * h * l

You are given the volume, and the base (which would include l and w)- and are told to find h.

70 7/8 cubic feet = 4 1/2 feet * h * 4 1/2 feet (simplify the right side)

70 7/8 cubic feet = 81/4 feet squared * h (divide both sides by 81/4)

7/2 feet = h

The height will be 7/2

What is the probability of pulling a heart
52 cards and 13 hearts

and rolling an even number on a dice

Answers

Answer: The probability of drawing a heart out of the deck is 13/52, or 1/4. The probability of drawing an even number as card #2 (c∈{2,4,6,8,10}) for any suit is 20/51, except when the first card drawn is an even heart, then the probability of the second draw is 19/51.

Step-by-step explanation:

The probability is 1/4 which is simplified for 13/52

SHOW YOUR WORK PLEASE!!

Answers

Answer: 31.42

Step-by-step explanation:

***WILL MARK BRAINLIEST*** Write in Scientific Notation! #2

Answers

1) 50,400,000 or 5.04 x 10^7

2) 820,000 or 8.2 x 10^5

3) 0.0000334 or 3.34 x 10^-5

Good luck! :)))
1. 3400470
2.820000
3. About 3.34 times 10 to the -5th power

-2/9x+(-7/9y)+(-7/10x+(-2/3)

Answers

Step-by-step explanation:

=-32-9 08 3X-97y

9- 2⋅ x+9- 7⋅ y+(1 0- 7⋅ x+3- 2)

The sum of a number r and 10 is −2.

Answers

R= -12
How?
10-12=-2
I’m so happy to help
You got this
r is -12!! hope i’m not too late

I need help ASAP need done before 3:30 pm

Answers

The probability is 3/8 bc there are 8 animals, 2 are cats, 3 are dogs, and 3 are hamsters

Answer:

5/8

Step-by-step explanation:

1/4 is equal to 2/8.2/8 +3/8 is 5/8 add them together you get 8/8.

Find the value of x:

Answers

Answer:

x = 3

Step-by-step explanation:

These angles are vertical angles. Vertical angles equals to on another but on the opposite side. Since they equal to another you do:

(10x + 1) = (12x - 5)

Add 5 on both sides:

10x + 6 = 12x

Subtract 10x on both sides:

6 = 2x

Divide 2 on both sides:

3 = x

Answer:

(10x+1)°=(12x-5)°. [vertically opposite angle]

1+5=12x-10x

6= 2x

3=x

therefore,x=3

Flip a coin 10 times,How many heads?How many tails?

Answers

Answer:

5 heads 5 tails (I think)

Step-by-step explanation:

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