Mathematics Middle School

Please help I’m confused math is hard!

Answers

Answer 1

Answer:

Step-by-step explanation:

basically, what they are asking you is to factor and then plug in the values (x=3; x=4) that they gave you.

first, you need to factor out the equation.

start with the original equation.

V=4x^3+10x^2+4x

factored form:

V= 2x(2x^2+5x+2)

next, you're going to want to plug in the values.

the answer asks for x=4, but you should do both.

v=2(3)(2(3)^2+5(3)+2)

do not forget to do the exponents before!

v=6(18+15+2)

v=6(35)

v=210 ft^2

that's the answer for if x was equal to 3.

V= 2x(2x^2+5x+2)

don't forget to write the original equation first.

V=2(4)(2(4)^2+5(4)+2)

V=8(36+20+2)

V=464 ft^2

⬆is your answer! hope this helped!!

Related Questions

Tell whether trapezoid ABCD and trapezoid WXYZ
could be similar. Explain your choice.

Answers

Trapezoid WXYZ is a dilation of trapezoid ABCD

Answer:

Trapezoid WXYZ is a amplifide of trapezoid ABCD

Step-by-step explanation:

A bag contains pennies, nickels, dimes, and quarters. There are 50 coins in all. Of the coins, 8% are pennies and 40% are dimes. There are 3 more nickels than pennies. How much money does the bag contain?

Answers

Answer:

Step-by-step explanation:

number of

pennies=8 % of 50=8/100×50=4

dimes=40 % of 50=40/100×50=20

nickels=4+3=7

quarters=50-(4+20+7)=50-31=19

total money=4+20×10+7×5+19×25

=4+200+35+475

=714 pennies

=7.14 $

A business named Beyond Boxes is considering adding a box in the shape of a triangular prism as shown. How much cardboard will be needed to make this design?

A.96 cm2

B.102 cm2

C.108 cm2

D.76 cm2

Answers

It should be 108 I believe ... pls brainliest if I’m right :)

What is the value of the expression shown below?

3 over 6 to the power of 2 + 7 × 4 − 5

6 and 1 over 4
6 and 1 over 2
23 and 1 over 4
23 and 1 over 2

Answers

23 and 1 over 12 it’s not any of the option but that’s what I got

3n (2n+n)

I A bit confused ;-;

Answers

Answer:

9n²

Step-by-step explanation:

3n (2n+n)

3n × 3n

= 9n²

hope it helps!

Answer:

9n²

Step-by-step explanation:

distribute the 3n

=> 3n(2n) + 3n(n)

Simplify

=> 6n² + 3n²

=> 9n²

Hope this helps!

Maybe brainliest?

Darrell has 43 books. Justine has b more books than Darrell. Choose the expression that shows how many books Justine has.

Answers

Answer:

43+b

Step-by-step explanation:

im not sure if this is right so im sorry if its wrong

if its right mark me for brainliest

Answer:

43+b

Step-by-step explanation:

I think this is right so..... can you pls mark me brainliest

for each graph shown tell whether it shows a proportional relationship

Answers

Answer:

a. yes, because there is a straight line that passes through the origin (0, 0). b. no, there is a straight line but it does not pass through the origin.

Step-by-step explanation:

Describe in your own words how to tell if an equation has infinite solutions or no solution at all

Answers

Answer:

We can identify which case it is by looking at our results. If we end up with the same term on both sides of the equal sign, such as 4 = 4 or 4x = 4x, then we have infinite solutions. If we end up with different numbers on either side of the equal sign, as in 4 = 5, then we have no solutions.Step-by-step explanation:

I'LL GIVE BRAINLIEST:

Answers

Answer:

D is the one

Step-by-step explanation:

Answer:

sorry its A,

Step-by-step explanation:

im like jumping back and forth between here and actual schoolwork

The local State University has a ratio of 5 professors to every 84 students.There are 10,080 students at State University. What is the number of professors at State University?

Answers

Answer:$91,000 or 74,000

Step-by-step explanation:

please include an explanation

Answers

Answer:

b and c

Step-by-step explanation:

10 points, Solve the rational exponents, please show the work if you can :) please don't use me for points, its already happened twice today.
[tex]2^{x} = 128, 5^{x} = 15,625, 8^{x} =4096, 3^{x} =6561, 8^{x} =262,144, 5^{5x} =3125, 7^{x} =2401, 7^{3x} = 117,649, and 9^{x} =729[/tex]

Answers

Essentially just turn the big number into an exponent so u can cancel out and be left with just the x for example 128 is the same as 2^7 and when you have it like that you simply cancel the 2 and are left with x=7

A) x=7
B) x=6
C) x=4
D) x=8
E) got cut off theres no value
F) x=2
G) x=3

Id reccomend downloading photomath for these type of questions or symbolab on your phone it shows the steps but try practicing it first :)

did you already answer the question or do I have to do it because I dont wanna do it for no reason if you get me

The temperature for the day starts at 37 degrees and rises to at least 60 degrees.

Which of the following inequalities could be used to find all the possible values of t, the amount the temperature could rise?

Answers

You could do 60-37 then that would give you 23. If that's what your looking for

Alanah is picking up two friends to go to a concert. She drives from her house to pick up Mia, then she drives to pick up Teresa, and then they go to the arena to see the concert. Answer the questions to find the total distance of Alanah's trip to the arena. When necessary, round answers to the nearest tenth.

Answers

Answer:

22 miles

Step-by-step explanation:

(2,8) (8,16) (8,2) (14,4)

16-8=8

8-2=6

8+6=14

14-8=6

4-2=2

6+2=8

14+8=22

Solve the equation.
1/10 (x + 34) = −2(4 − x)
x = _____

HELPPP PLZZ DUEE TODAYY

Answers

Answer:

−0.383

Step-by-step explanation:

Let's solve your equation step-by-step.

1/10 (x+34)=(−2(4−x))(x)

Step 1: Simplify both sides of the equation.

1/10 x+ 17/5 =2x2−8x

Step 2: Subtract 2x^2-8x from both sides.

1/10 x+ 17/5 −(2x2−8x)=2x2−8x−(2x2−8x)

−2x2+ 81/10 x+17/5 =0

For this equation: a=-2, b=8.1, c=3.4

−2x2+8.1x+3.4=0

Step 3: Use quadratic formula with a=-2, b=8.1, c=3.4.

−b±√b2−4ac

−(8.1)±√(8.1)2−4(−2)(3.4)

2(−2)

−8.1±√92.81

−4

x=−0.38344867082526823,4.433448670825268

Step 4: round to the nearest hundred

X= -0.383

PLEASE HELP I CANT FIGURE IT OUTTTT

Answers

miss girl i lost 5 brain cells looking at that

Use photomath and take a picture of each omen

Solve x-10 > -2, and then graph the solutions. Use pencil and paper. Explain how you can use mental math to solve the inequality.

Answers

-8 I got this question

the answer is -8 hope this helps

at 9 am you have to run 2 miles. at 9:24 am you have run 5 miles. what is your running rate in minutes per mile

Answers

The answer is 5 minutes

You ran three miles in 24 minutes so your rates is 3/24 miles per minute
To convert to miles per hour you would multiple by 60minutes/1hr
So 3/24 x 60/1 which simplifies to
15/2 miles per hour

Trapezoid ABFE is similar to trapezoid EFCD. What is the length of DC?

Answers

Answer:

6.75

Step-by-step explanation:

Find the relationship between the trapezoids. You can see that the top of trapezoid ABFE is 3 units and the top of EFCD is 4.5 units. 3 * 1.5 = 4.5, so t the sides of trapezoid EFCD are 1.5 times more than the sides of ABFE.

Now, you know the bottom of ABFE is 4.5, so the bottom of EFCD is 1.5 times longer because they are proportional, so you can do 4.5 * 1.5 = 6.75 units.

According to the Census Bureau, in 2014 California had an estimated population of 3.88 × 107 and Wyoming had a population of 5.84 × 105. Complete the following sentences.

Answers

Answer:

100% on this question :)

Step-by-step explanation:

A train pulls into a station and lets off its passengers. please help!

Answers

Answer:

Step-by-step explanation:

Jen bought some candy. She bought 1 package containing 6 pieces of candy and "n" packages containing 3 pieces each. Write an expression to represent the number of pieces of candy Jen has.

Use "n" as your variable.

Answers

Answer:

(1 x 6) + 3n

Step-by-step explanation:

Hope this helps!

(1 x 6) + 3n that the answer

the second image is an example to help you solve this problem on the first image

Answers

Answer:I see no image

Step-by-step explanation:sorry

I’m pretty sure that it is 168

What is the slope of the line that passes through the following points: (7,10) and (10,9)
A -1
B 3
C 4
D -1/3

Answers

Answer:

Step-by-step explanation:

because on a graph x and y passes through and the slope of 7,10 due to numerial equation is 3

Answer:

the answer is d

Step-by-step explanation:

PLEASE HELP! BEEN WAITING FOR R0 MINS!!! WILL GIVE 20 POINTS!!!!
What does -(-5) equal/mean?
ITS SIMPLE JUST WANTING AWNSER
pleaseeeeeeee

Answers

Answer:

the two minus symbols cancel out making it positive 5

Step-by-step explanation:

If you subtract a negative it becomes a positive. no matter what. So if the equation is 1-(-5)=? it would be 6.

PLS PLS PLS HELP!!!!!!!!!!!!!!!!!2

Answers

Answer:

Step-by-step explanation:

because.

A ball’s height as a function of how long it spends in the air can be modeled by the equation h = -16t2 + 160t. Find the domain and range for this situation.

Answers

Answer:

Slope=0.014/2.000=0.007

the answer is 0.007 hope this is correct

which region has the safest drinking water?

Answers

Answer:

if it depends on how much access you have to clean water, I'd say a since both the median and all qaurtile seem to be higher.

Step-by-step explanation:

Answer: A

Step-by-step explanation:

pleeeeeeeeeaaaaaase help me

Answers

Here is the graph
The inequality should be: h > 9/2

tickets to the country fair cost $8 each. Seventy people bought their tickets at the gate. The revenue ticket sales was $ 2,560. How many people bought their tickets at the gate?

Answers

Answer:

70 people

Step-by-step explanation:

It literaly says it in the question.

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