Mathematics Middle School

heeeeellpppppppppppppppp pls

Answers

Answer 1

9514 1404 393

Answer:

8x·x·x·x·x·x

Step-by-step explanation:

Using the rules of exponents, this simplifies to ...

[tex](2x^2)^3 = 2^3x^{2\cdot3}=8x^6=\boxed{8\cdot x\cdot x\cdot x\cdot x\cdot x\cdot x}[/tex]

The applicable rules of exponents are ...

(a^b)^c = a^(bc)

(ab)^c = (a^c)(b^c)

Of course, an exponent signifies repeated multiplication.

Related Questions

The vertex of the parabola described by the equation 3y=2x^2-16x+18 is (m,n). What is m+n?

Answers

Answer:

the aswer is 32

Step-by-step explanation:

The vertex of the parabola described by the equation 3y=2x^2-16x+18 is (m,n). the sum of m + n is 178/27.

To find the vertex of the parabola described by the equation 3y = 2x^2 - 16x + 18, we first need to put the equation in the standard form of a parabola, which is y = a(x - h)^2 + k, where (h, k) represents the vertex.

Let's begin by dividing the entire equation by 3 to simplify it:

y = (2/3)x^2 - (16/3)x + 6

Now, we need to complete the square to rewrite the equation in the form y = a(x - h)^2 + k:

y = (2/3)(x^2 - (8/3)x) + 6

Next, we need to find the value that completes the square for the expression inside the parentheses. To do that, we take half of the coefficient of x and square it:

(8/3) / 2 = 4/3

(4/3)^2 = 16/9

Now, we add and subtract 16/9 inside the parentheses:

y = (2/3)(x^2 - (8/3)x + 16/9 - 16/9) + 6

Now, we group the first three terms and factor the perfect square trinomial:

y = (2/3)((x - 4/3)^2 - 16/9) + 6

Next, distribute the (2/3):

y = (2/3)(x - 4/3)^2 - (2/3)(16/9) + 6

Now, simplify:

y = (2/3)(x - 4/3)^2 - (32/27) + 6

Finally, bring everything together:

y = (2/3)(x - 4/3)^2 + (142/27)

Now we can see that the vertex of the parabola is at the point (h, k) = (4/3, 142/27).

To find m + n, we simply add the x-coordinate (h) and the y-coordinate (k):

m + n = 4/3 + 142/27

To add these fractions, we need to find a common denominator, which is 27. Convert 4/3 to have a denominator of 27:

4/3 = (4/3) * (9/9) = 36/27

Now we can add the fractions:

m + n = 36/27 + 142/27

m + n = (36 + 142)/27

m + n = 178/27

To know more about vertex of the parabola:

https://brainly.com/question/29267743

#SPJ2

Solve.
ASAP
90 = 5x + x

Answers

Answer:

Step-by-step explanation:

LEtS Do It PrOpeRly

90=5x+1x

90=6x

[tex] \frac{90}{6} [/tex]

if we divide 90÷6=15

Karen earns $5 by delivering newspapers each week. She saves $3 and she spends the rest. How many weeks will it take her to save enough money to buy a $35 gift card? (Use the table to help you solve the problem; you will need to copy it onto a piece of paper

Answers

Answer:

12 Weeks.

( Is this what you were asking for? <3 )

Which trend line has been drawn correctly using the divide-center method?

Answers

A but I'm not sure so can you tell me what it is

what is 5(x + 2)+10 simlified?

Answers

Answer:

Step-by-step explanation:

5(X+2) = 5x +10 +10 5x=10-10=-20

-20/5= -4

to be honest these might not be right but maybe 2

Which equation is true? *

831 x 10^2 = 8,310
406 x 10^3=406,000
915 x 10^4 = 915,000
257 x 10^2 = 257,000

Answers

The answer would be a.

the answer it’s A i used a calculator

HELP I AM TIMED W WILL MARK BRAINLEST
How many groups of Two-thirds are in Three-fifths?

A fraction bar labeled 1. Under the 1 are 5 boxes labeled one-fifth. Under the 5 boxes are 3 boxes containing one-third. Under the 3 boxes are 15 boxes labeled StartFraction 1 Over 15 EndFraction.

Answers

Answer:

Step-by-step explanation:

Answer:

1 and 4/15 or 2

Step-by-step explanation:

Question below answer asap please

Answers

Answer:

I think flip and rotate

D=A which means D gets to the spot where A is.

The answer would be D=A

Please help ASAP I will also give brainiest :)

Determine the intercepts of the line.

Answers

x intercept is (5/2,0)
y intercept is (0,5)

Answer:

x: (5/2,0)

y: (0,5)

Step-by-step explanation:

To solve for x-intercept, substitute 0 for y.

-4x+7=2(0)-3

-4x+7=-3

-4x=-10

x=10/4 or 5/2

To solve for y-intercept, substitute 0 for x.

-4(0)+7=2y-3

7=2y-3

10=2y

y=5

Fill in the missing fractions

Answers

Answer:

The second choice.

Step-by-step explanation:

1/5 = 20%

2/5 = 40%

3/4 = 75%

Answer:

The answer is the second option, X= 1/5, Y= 2/5, Z= 3/4

what is -3/4, -3, 0.75, -1.8, -3.5 ordered greatest to least i need the full order thx

Answers

Answer:

0.75, -3/4, -1.8, -3, -3.5

Step-by-step explanation:

Answer:

0.75, -3/4, -1.8, -3.5

Hope this helps :)

Step-by-step explanation:

-3/4 is also -0.75

Distances in space are measured in light-years. The distance from Earth to a star is 4.1 × 1013 kilometers. What is the distance, in light-years, from Earth to the star (1 light-year = 9.46 × 1012 kilometers)? (5 points)

0.23 light-year

2.36 light-years

4.33 light-years

5.36 light-years

Answers

Answer:

5.36 light years

Step-by-step explanation:

if a light-year = 9.46 x 1012

9.46 x 1012 = 9512.8

4.1 x 1013 = 4153.3

After that you would subtract

9512.8 - 4152.3 = 5.360.5

the real answer is 5.36 light years

So the distance in light years from earth is 5.36 light years

Hope this helps

Please answer this question and answer correctly.

Answers

Answer:

C. 11

Work:

y=number of misses

x=number of scores

Points: 2x-0.5y=2(7)-0.5(6)=14-3=11

Hope this helps; please vote brainliest.

Which model is NOT a function? (i accidentally clicked on b ignore that lol)

Answers

Answer:

Step-by-step explanation:

It's the only one where an x-axis has more than one y-axis.

I hope this explanation helps.

A sporting goods company has three stores, all about the same size, within the city. The graph shows last month’s sales figures for one of the stores. Which statement is best supported by the information in the graph?

Answers

the answer should be “25% of.....was in the athletic department” the total sales is 60,000 and athletic department made 15,000 with is 1/4 (25%) of the total sales

Answer:

Step-by-step explanation:

PLEASE, I NEED HELP! I’M DOING AN ASSIGNMENT AND ITS DUE NEXT TUESDAY!

Answers

Answer: Study at least 2 hours a day

Step-By-Step-Solution: 1. Find notes on what you’re doing 2. Wright them down 3. Study them 4. Wallah you’re done you can thank me later :D

I have two questions and one will be on topic so please don't report.

1. Can someone give me a summary of Linear relationships? I still can't get a grip on it which is making me fail math.
&
2. Why do people report the memes on here? Like they are supposed to be left here and uplifting. Not deleted and forgotten just because.

Answers

Linear is basically a straight line on a graph and in a table when why changes it choice change the same amount through out for example 3,6,9,12,15 it’s by three if it’s like 2.1.3.3 it wouldn’t be linear bcuz it goes -1,+2,0

HELP!! I WILL GIVE YOU BRAINLIEST!!!

Answers

Answer:

I believe thats the answer:)

Step-by-step explanation:

The answer is c because I did this a while bavk

What is the surface area, in centimeters, of a cube with a side length, s, of cm?

Use the formula of surface area = 6s²

Answer: ⬜

Use / for a fraction. Example 1/2

Answers

Answer:

216cm

Step-by-step explanation:

i think that's right

Area is 6s^2 and that’s one side: a cube has 6 sides so the surface area is 6(6s^2) = 36s^2 cm

Anika had 810 songs on her phone and then she discovered Broadway. This led to 130% increase in the number of songs she had on her phone. How many songs does she have on her phone now

Answers

810+130=940 sorry if I am wrong

Answer:

243

Step-by-step explanation:

that's I did was find what 130% of 810 was and I found it was 1053 so then I subtracted it by 810 to find 243

sorry if I'm wrong

The population of Jacobtown is 14,312 and the population of Waltterville is 8,944. What is the combined population of Jacobtown and Waltterville?

Answers

Answer:

23,356

Step-by-step explanation:

You have to add 14,312 and 8,944 to get the total population.

I need hlp
Explain your reasoning

Answers

1. the boy would weight about 10 pounds because u divide the weight by 6

2. 22.7 lbs

1. the boy would weigh about 10 pounds because you would divide the weight by 6!!
2. (22.7 pounds)

Isaac applied the steps below to find the product of (4.2)(–5.4). Step 1: (4.2)(–5.4) = (–5.4)(4.2) Step 2: = (–5.4)(4) + (–5.4)(0.2) Step 3: = (–21.6) + (–1.08) Step 4: = –22.68 Which step shows where Isaac applied the distributive property? Step 1 Step 2 Step 3 Step 4 will mark BRAINLIEST FOR QUICKEST CORRECT ANSWER

Answers

Answer:Isaac applied the distributive property in Step 2.

Answer:

Step-by-step explanation:

step shows where Isaac applied the distributive property

The length of the Titanic was 882 feet. Porter's history class is building a model of the Titanic. The model is 1/100 of the actual length of the ship. How long is the model?

Answers

Answer:

8.82 feet

Step-by-step explanation:

Explanation:

Let's set up the ratio. We know that the actual length of the ship was 882 feet and we want to know how long the model will be. We also have a ratio of 1 model length to every 100 actual length. So we can write this as:

Model length

Ship length

1 Model length

100 actual length

And we can drop in some numbers (I'll also put in the variable

to represent the length of the ship model):

882

100

Let's cross multiply to solve for x:

100

882

8.82

feet

8.82 is teh correct answer mark me as branlilest

Henry made himself a sandwich that was StartFraction 11 Over 12 EndFraction of a foot long. He put pepperoni on Three-fourths of his sandwich. What length of the sandwich did not have pepperoni on it? StartFraction 11 Over 48 EndFraction of a foot StartFraction 5 Over 16 EndFraction of a foot StartFraction 11 Over 16 EndFraction of a foot StartFraction 9 Over 11 EndFraction of a foot

Answers

Answer:

Step-by-step explanation:

Answer:

The answer is A on the edge.

Step-by-step explanation:

i need help with this

Answers

Answer:

im not good at math

Step-by-step explanation:

Find the sum of the absolute deviations of the following data set.

8, 5, 15, 12, 10

Answers

Answer:

Step-by-step explanation:

8/1=8

5/1=5

15/1=5

12/1=12

10/1=10

So I think that answer is 1.

Answer:

I think the answer is 2.8.

Step-by-step explanation:

Absolute Deviation is where N is the number of observed values, X-bar is the mean of the observed values and XI are the individual values.

The table below shows the amounts of cherry juice and soda used in each container of cherry soda. The ratio of cherry juice to soda is 1:r, where r is the unit rate. Use the table to determine r. (4 points) Cherry Juice (cup) Soda (cup) one-fourth 1 2 8 3 12
Group of answer choices
A. one-fourth
B. 4
C. 2
D. two-thirds

Answers

Answer:

is d i did the test c is wrong

Step-by-step explanation:

The table shows the amount of red paint that can be added to different amounts of white paint while making a custom paint color: Paint Color Quarts of Red Paint Quarts of White Paint 4 20 5 25 7 35 8 40 Which statement is true about the ratio of red paint to white paint in the paint color? (4 points)
Group of answer choices
A. It is 1:16.
B. It is 16:1.
C. It is 5:1.
D. It is 1:5.

Answers

Sorry to say this but the answer isn't C it is D. It is 1:5 I did the test and past sorry i came so late

but i hope this helps ^.^

Which expression is equivalent to 2(m − 4) + 1? 2m − 7 2m − 3 2m + 9 2m + 10

Answers

Answer:

2m - 7

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

2(m - 4) + 1

Step 2: Simplify

Distribute 2: 2m - 8 + 1Combine like terms: 2m - 7

2m - 7

take it from the experts ^

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