Mathematics Middle School

Qu
1) Which of the equivalent expressions for P(x) reveals the price which gives a profit of
zero without changing the form of the expression?
a)
b)
P(x) = -3x2 + 432x - 1680
P(x) = -3(x - 4)(x - 140)
P(x) = -3(x - 72)2 + 13872

Answers

Answer 1

Answer:

bhbhhbhjb

Step-by-step explanation:

Related Questions

Sam has $24 in his wallet. He pays $8 to have his car washed. Which expression represents this situation?
a. -24 +(-8)
b. -24 +8
c. 24 + (-28)
d. 24 + 8

Answers

Answer:

B

Step-by-step explanation:

Your answer is - 24 + 8.

What are the solutions of 3x2 - x + 7 = 0?

Answers

Answer:

x =(1-√-83)/6=(1-i√ 83 )/6= 0.1667-1.5184

x =(1+√-83)/6=(1+i√ 83 )/6= 0.1667+1.5184

Step-by-step explanation:

3x2-x+7=0  

Two solutions were found :

x =(1-√-83)/6=(1-i√ 83 )/6= 0.1667-1.5184i

x =(1+√-83)/6=(1+i√ 83 )/6= 0.1667+1.5184i

PLEASEEEEEEEEEE HELP FAST... 50 POINTS
SOLVE FOR VOLUME

Answers

Answer:

Step-by-step explanation:

volume = height * are of the trapezoidal =  9 * (7+11)*4.5 / 2 = 364.5 m3

Answer:

364.5 m³

Step-by-step explanation:

Volume = base area × height

Base area: ½(7+11)×4.5

9×4.5

40.5 m²

Volume: 40.5 × 9

364.5 m³

PLEASE HELP!!! will give brainliest

Answers

-0.25 is ur answer :)

What I want you to do is think of yourself as a tourist who just landed in Nebraska. You've decided to take a road trip across the northwestern US (as presented in the states shown on the map) and you want to cross each state border exactly once. So for example, you want to make sure that you cross the border between SD-ND, SD-NE, SD-WY, SD-MT. You don't just want to visit South Dakota, but you want to cross all of the borders as well... but only once! You can visit each state as many times as you wish, but you can only cross each border once. Can you think of a way to cross ALL of the state borders in the map exactly once, while ending back where you started in Nebraska?

Answers

Answer: up, left, down, right

Step-by-step explanation:

because

please help meeeeeeeeeeeee

Answers

Answer:

x=$16.50/hour

Step-by-step explanation:

(40)(4)x=2640

x=$16.50/hour

c2-3c-10c2+5c-14c2-c-2c2-15​

Answers

Answer:

-13c4 - c3 - 15c2 - 12

 ——————————————————————

           c2        

Can someone pls help me on the last two questions

Answers

D for 9, solve the other the same way

Step-by-step explanation:

I am assuming that I am supposed to find the equivalent.

9

[tex]\sqrt{16x^3yz^4}[/tex]

First, separate the square roots.

[tex]\sqrt{16}\sqrt{x^3} \sqrt{y} \sqrt{z^4}[/tex]

Then simplify each.

[tex]4*x\sqrt{x} * \sqrt{y} * z^2[/tex]

Then combine like terms.

[tex]4z^2*x\sqrt{xy}[/tex]

That's D

Now do the same for Number 10.    

Pythagorean Theorem: Find the diagonal length of the soccer field.

Answers

Answer:

6600 yrds

Step-by-step explanation:

sorry if its wrong

What is the area of a rectangle with length 6 units and width 3 units?
9 units 2
18 units
24 units
32 units2

Answers

Answer:

18 units. Just multiply them.

Answer:

18

Step-by-step explanation:

6 x 3 = 18

Another angle math problem. I just don’t get it ‍♀️ Help please.

Answers

I think 22 degrees not sure sorry

Answer:

68°

Step-by-step explanation:

Complementary = 90 - 22

Vito is a pitcher on his baseball team. This season he has allowed an average of 0.8 hits per inning pitched. If Vito pitcher 160 innings this season how many hits did he allow?

Answers

Answer:

200

Step-by-step explanation:

.8x = 160


A garden table and a bench cost $910 combined. The garden table costs $60 more than the bench. What is the cost of the
bench?

Answers

Answer:

You could subtract 910 from 60 which would give you 850 and that would be your answer.

Step-by-step explanation:

Answer: $850

Step-by-step explanation: take 910 - 60

If the linear model applies the function f(x) = 1.3x + 9.2, what is the predicted value and residual
when the tree is 3 years old with a height of 14?

A) Predicted value: 13.1
Residual: 0.9
B) Predicted value: 11.8 Residual: 0.2
C) Predicted value: 15.7 Residual: 1.3
D) Predicted value: 18.3 Residual: 0.7

Answers

Answer:

A) Predicted value: 13.1   Residual: 0.9

Step-by-step explanation:

By definition:

residual = observed - predicted

The linear model is:

f(x) = 1.3x + 9.2

where f(x) is the height and x is the age of the tree.

Replacing with x = 3:

f(x) = 1.3(3) + 9.2 = 13.1 ft

which is the predicted value. The observed value is 14 ft, then:

residual = 14 - 13.1 = 0.9 ft

"Julie has six photos that she has taken, framed and are hanging in a row on the wall. If she wants to rearrange them so that the middle two photos stay in place, how many different ways can she arrange the photos?"

Answers

Answer:

Julie has 6 photos that she wants to rearrange.

Two of them are fixed at the middle position.

=> There are 4 photos left for rearranging.

=> This is the permutation with n = 4, k = 4.

=> The number of ways Julie can arrange the photos:

    N = 4 x 3 x 2 x 1 = 24 ways

Hope this helps!

:)

Two consecutive even Integers whose product is 80

Answers

8 and 10 hope this helps

SOLVED
its 160

The table shows the number of mobile cellular subscriptions per 100 people in Australia for different years.

Year | Cellular subscriptions / 100 people

1993 | 4 12 25 33 57 72 90 101 101 108

1995 | 12

1997 | 25

1999 | 33

2001 | 57

2003 | 72

2005 | 90

2007 | 101

2009 | 101

2011 | 108

The quadratic regression equation using the years since 1990 for the input variable and the number of cellular subscriptions for the output variable is y=−0.107x^2+9.008x−28.851

What is the predicted number of cellular subscriptions per 100 people in Australia in 2030?

Round your answer to the nearest whole number. Enter your answer in the box.
Nvm its 160

Answers

Answer:

160

Step-by-step explanation:

x represents the years since 1990, so at 2030, x =  2030 - 1990 = 40. Replacing this value into the quadratic regression equation, we get:

y = -0.107(40)^2 + 9.008(40) - 28.851 = 160

which is the predicted number of cellular subscriptions per 100 people in Australia in 2030

Which 2 numbers have a least common multiple of 36?


Answers

Answer:

9 and 12,

Step-by-step explanation:

Answer:

nine and twelve (A)

Step-by-step explanation:

The Least Common Multiple of six and fifteen is thirty and the LCM of eight and eighteen is 72, this leaves only A which is correct.

subtract. 4x2-5x+1 - (2x2+9x-6)​

Answers

Answer:

4x^2 -5x + 1 - 2x^2 - 9x + 6

2x^2 - 14x + 7

Step-by-step explanation:

Find the measure of x.
15(x+2)
X=-1
x = 7
X = 9
x=13

Answers

Answer:

x=7

Step-by-step explanation:

7+2 = 9. 9*15 = 135 degrees

The answer is x=7. 135=15(x+2). Then you’ll get 135=15x+30. You subtract 30 from each side leaving 105=15x. To get x by itself, you then divide 15 on both sides, making the answer x=7.

4. Find the surface area of the space figure represented by the net.
A 75 cm
B 96 cm2
C 90 cm2
D 69 cm

Answers

The correct answer is C. 20 characters

The data below shows the scores of some students on a test:

32, 29, 21, 20, 26, 23, 28

Which box plot represents the data?

Answers

Answer:

Its the second one

Step-by-step explanation:

The 2nd box from the top is the correct answer.

What’s the answer to this???

Answers

Answer:

c

Step-by-step explanation:

you need to pay 8% tax on a car that costs $12,00. what will you end up paying in total?

Answers

Answer:

12960

Step-by-step explanation:

12,000 × .08 = 960

12,000 + 960 = 12,960

You multiply 12,000 by 0.8 and you get 960
Then you do 12000 plus 960 and then you get your answer

A spinner with the numbers 1 through 4 is spun as well as a coin is tossed. Display all possible outcomes as an organized list.

Answers

Answer:

I DONT KNOW

Step-by-step explanation:

Figure it out

How many combinations of 6 students can a teacher choose from 30 students?
657,720
593,775
180
427,518,000

Answers

Answer: 593775

Step-by-step explanation: 30C6 =30x29x28x27x26x25 / 6x5x4x3x2x1 =593775

Ami and Bert are drawing plans for rectangular vegetable gardens. In Ami's plan, the garden is 16 feet by 13 feet. In Bert's plan, the garden is 18 feet by 18 feet.

Select all true statement(s).

A The area of Bert’s garden is 116 square feet greater than Ami’s.
B The area of Ami’s garden is 208 square feet.
C The area of Bert’s garden is 72 square feet.
D Ami’s garden has a greater area than Bert’s garden.

Answers

Answer:

A and B

16 times 13=208

18 times 18=324

Subtract those and you get 116

Answer:

A and B

Step-by-step explanation:

A.) Area of Bert's garden : 324 - Area of Ami's garden 208= 116

B.) Ami's garden is 208 feet if you do 16 x 13

Mark mine as branliest please!

The roof of a house is the shape of an isosceles right triangle as shown in the diagram below.

A right triangle is shown. An altitude is drawn from the right angle to the opposite side to form another right angle. The length of the altitude is h. The length of one of the sides is 10.

What is the height of the roof, h?

5 ft
5 StartRoot 2 EndRoot ft
6 StartRoot 3 EndRoot ft
StartFraction 5 StartRoot 2 EndRoot Over 2 EndFraction ft

Answers

Answer:

5 StartRoot 2 EndRoot ft its B

Step-by-step explanation:

The height of the roof is 5 StartRoot 2 EndRoot ft

Isosceles right triangle

Since the triangle is isosceles, hence the base angles will be 45 degrees

Using the SOH CAH TOA identity;

Cos 45 = adj/hyp

Given

Adj = hHyp = 10

Substitute

Cos 45 = h/10

h = 10cos45

h = 10 * 1/√2

h = 5√2

Hence the height of the roof is 5 StartRoot 2 EndRoot ft

Learn more on SOH CAH TOA here: https://brainly.com/question/20734777

What is the length of AR if the radius of the circle is 6 cm?

Answers

Step-by-step explanation:

[tex]arc \: length \: = \frac{theta}{360} \times 2\pi \: r \\ here \: theta \: = 105 \: degrees \: \: \: \: and \\ radius \: = 6 \: cm \\ on \: substituting \: the \: values \: in \: formula \\ = \frac{105}{360} \times 2\pi \: \times 6 \\ = \frac{105}{360} \times 12\pi \\ = \frac{105}{30} \times \pi \\ = 3.5 \times \pi \\ = 3.5 \times 3.14 \\ = 10.99 \\ arc \: length \: = 11.0 \: \: (approximately)[/tex]

which of the following graph represents the equation y=2x+2?

Answers

Hope that helps out. Have a wonderful day
Other Questions
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