Mathematics Middle School

On a test, Marcus is asked to simplify [tex]\sqrt{128}[/tex] . Here is his work:

[tex]\sqrt{128}[/tex] = [tex]\sqrt{16}[/tex] · [tex]\sqrt{8}[/tex] = [tex]\sqrt[4]{8}[/tex]

Which statement best describes Marcus' answer?

1. He is incorrect because 16 times 8 is not 128.
2. He is incorrect because the 4 and the 8 should be switched around in his answer.
3. He is correct.
4. He is incorrect because he did not use the largest perfect square.


Hope you understand it before you answer I already know the answer but want to see how smart you guys really are :)

Answers

Answer 1

Answer:

4. He is incorrect because he did not use the largest perfect square.

The answer is self-explanatory

Related Questions

If a bag contains 16 red 4 yellow 20 blues 8 white ballons what is the part to whole ratio of yellow ballons to all ballons
(PLS EXPLAIN THE ANSWER PLS)

A. 1:3

B. 1:4

C. 1:5

D. 1:6

Answers

Answer: A. 1:3

Step-by-step explanation:

16 + 4 = 20

20 + 8 = 28

28 + 20 = 48

48 divided by 4 = 12

12 devided by 4 = 3

so the ratio is 1:3

pls can i have brainliest i need it for my goal? thanks! <3

A 1:3 is the correct answer

1/4 + 2/3 what does it equal?

Answers

your answer is 0.916

Answer:

.91

Step-by-step explanation:

Represent the following in rule method C = {0,1,2,3, ......,19}

Answers

Answer:

[tex]C={x\:l\:x \: are \: whole \: numbers \: less \: than \: 20}[/tex]

Answer:

it would probably be C but you should check it

Bob ate 12 cookies over the past two days. Assume he ate the same amount of cookies each day. How many cookies did Jonathan eat per day?

Answers

Answer:

Its 6 cookies per day

Step-by-step explanation:

12/2=6 6 cookies per day

12 cookies within 2 days..
12/6=2

However, Bob-Jonathan?
This is a confusing question because jonathan is not mentioned..

I hope this helps! Let me know if you have any questions! Good luck on the rest of your assessment!

Mark this as Brainliest if you get a chance:)

Express the scale of 1 inch to 20 feet as a scale without units. PLEASE EXPLAIN

Answers

Answer:

1 to 240

Step-by-step explanation:

It's a ratio that can also be answered as 1:240. 20ft=240in,so express it like that. Hope this helps!

BTW: If your still confused go to

Isaac is on the 4th floor of a building. If he rides an elevator up 7 floors, what floor will he be on?

A. What integer represents the floor Isaac is starting on?
________

B. What integer represents how many floors the elevator will rise?
________

C. What floor will the elevator stop at?
________

Answers

If he’s on the 4th floor and he’s going up to the 7th floor you would add 7+4= 11. He would land on the 11th floor. So (C.)
A =4 B = 7 C=11
4+7=11

find the area of the figure above, help me plissss

Answers

Answer:

96

Step-by-step explanation:

hope it helps:)

PLEASE SOLVE THIS ON PAPER AND SEND PICTURE OF QUESTION!!! WILL GIVE BRAINLEST

Answers

Answer:

98 remainder 7

Step-by-step explanation:

Answer:

its been attached

last one (need to write something long enough)

Answers

Answer:

The 1st problem the answer is the 1st graph

The 2nd problem the answer is the 1st graph

hesiehejejehdhdhdhdh hdhdheh

HELP ASAP 10 POINTS

A. Write an expression to represent the difference between the two points shown on the number line.

B. Find the distance between the two points. [Hint: Remember that distance is always positive.]

Answers

Answer:

1 9/10 or 1.9

Step-by-step explanation:

that's the distance I believe

1.9 or 19/10 Would be your answer I hope this helps

An architect has blueprints of her house that use a scale of 1 cm = 2.5 m

The actual distance between two rooms in the house is 28 m. How far apart are these rooms on the blueprint?

Answers

Answer:

11.2 cm

Step-by-step explanation:

28 / 2.5 = 11.2

Answer:

11.2 cm

11.2 cm is correct I agree

please finish the work part for NO.10, I have the answer just need the work part. Please and thank you!! PS. PLEASE SHOW. WORK ON PAPER!!

Answers

Where is it? The problem I don’t see it.

Solve each system of equations algebraically.? y=x+12
y=-18


Show work?

Answers

Answer:

x= -30

Step-by-step explanation:

y=x+12    y=-18

Substitute:   -18=x+12

Solve:           x= -30

Answer:

x=-30 (correct me if I am wrong)

Step-by-step explanation:

y=x+12

-18=x+12

-18-12=x

-18+-12=x

-18+-12=-30

x=-30

6 divied by 44.58 find the quotient

Answers

Answer:

Since 7 is less than 32 your long division is done. You have your answer: The quotient is 15 and the remainder is 7.

So, 487 ÷ 32 = 15 with a remainder of 7

For longer dividends, you would continue repeating the division and multiplication steps until you bring down every digit from the dividend and solve the problem.

Step-by-step explanation:

hope this helps you if it does plz mark brainliest

why is no one answering peoples questions

Answers

I really don’t know?

pick two sports. Explain how knowing about momentum could help you predict what will happen in the game when you watch these sports on TV.

Answers

Answer:

whats your favourite sports?

Step-by-step explanation:

In football, you have to build momentum in order to throw the football far enough.

In baseball, using a heavier bat or racket and increasing running speed or hand speed.

Can someone please answer this i have been struggling this for about 20 minutes all you have to do is copy and paste the link and you will see

Answers

I don’t see any link? try copy and pasting on what you need help on, if you have a computer press Ctrl + C then to paste press Ctrl + V and if your on a mobile double tap the writing and press copy then when you want to paste double tap again and press paste I hope this help

Tank A has a capacity of 20 L. It is half
filled with maple syrup. The ratio of
the volume of maple syrup in Tank A
compared to the volume of maple syrup
in Tank B is 2 : 5. How much maple syrup
is in Tank B?

Answers

Answer:

25 liters in Tank B

Step-by-step explanation:

There is 100 L of maple syrup in Tank B.

Find the value of b if the graph of the equation y = -5x + b goes through the G(4,3) point.

Answers

Answer:

The Value of b is 23

Step-by-step explanation:

substitute 4 for x, and 3 for y. Then move combine like terms.

3 = -5(4) + b

3 = -20 + b

23 = b

We know that x = 4 and y = 3, so plug those in into the equation
3 = -5(4) + b
3 = -20 + b
add 20 on both sides
23 = b

draw the graph of the given equation. y = 1.7x

Theres a graph

Answers

Answer:

I inserted your equation into desmos calculator

,  Hope this helps :)

Have a great day!!

Nakasagot na koalaijakqjqjqjdhdjqoaoshdjsj

0.3 divied by 39.06 where in the quotient should the decimal go?

Answers

We then have the equations:
390.6 ÷ 3 = 130.2
and therefore:
39.06 ÷ 0.3 = 130.2
Both calculated to 1 decimal places.

1 3 0. 2
3 3 9 0. 6
− 3
0 9
− 9
0 0
− 0
0 6
− 6
0
130.2 will be your final answer

Referring to the Fig. in Question #47, find the cosine of
∠A. Give answer in simplest form.

Answers

Answer:

it equals to 84

Step-by-step explanation:

21+28=49+35=84

the correct answer is 84

Which image of the following scatterplots would have a trend line with a negative slope?

13 points. Hurry!

Answers

The second image where the first row is x-1 y-4.5. The points go further towards the bottom from left to right, unlike the others that point up.
This is essay it is 13 by 2 and 15- is your anwer

Triangle PQR has coon instes (2.4), 0(-2,4), R(0,-6). Write the coordinates of the vertices of the image of a triangle afte aanslation 3 units left and 1 unit up.

Answers

P’= (-1,5)
Q’=(-5,5)
R’=(-3,-5)
(0,3) and (1,-3) cuz since it moves 4 units to the left it makes it negative 3 and 1 unit up

does anyone know slope?

Answers

Answer:

C. y = 10x + 10

Step-by-step explanation:

[tex]\frac{rise}{run\\}[/tex] = [tex]\frac{10}{1}[/tex] = 10

y = 10x + 10

O.234 + 2.07 =



Pls help

Answers

2.304 , 4+0= 0 3+7=10 drop 0 carry one that makes a 3 0+2=2 keep the decimal in the same place and you get 2.304

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⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠛⠻⠿⠿⠿⠿⠛⠉

Answers

Answer:

OOP SHREK <3

Step-by-step explanation:

This is a beautiful portrait of Shrek. How fascinating…

What is the volume of BOTH of the rectangular prisms?

Answers

Volume of both the rectangular prisms:

3) 33
4) 91.125

Answer:

The first one is 33 units.

The second is 91.125 units.

Step-by-step explanation:

HELP ME PLSSSSSSSSSSSSSSS THIS STUFF IS HARD

Answers

Answer:

v=58

Step-by-step explanation:

All we have to do here is plug in the numbers for the corresponding letters. That means we are left with v=13+9*5. So then all we have to do is put it in the calculator and we get 58.

Answer:

v=58

Step-by-step explanation:

What is 81/50 as a mixed number?

Answers

Answer:

1 31/50

Step-by-step explanation:

there is one set of 50 and the remaining it 31 :)

1 31/50 1 set of 50 81-50= 31
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