Which expressions are quadratic expressions? Check all that apply.

z2
2x + 7x – 10
2x2 + 9x – 7
500(0.25)t – 1
13x3 + 21x2 – 5

Answers

Answer 1

Answer:

2x + 7x – 10

2x2 + 9x – 7

Step-by-step explanation:


Related Questions

The area behind the free throw line on a basketball court is a semicircle with a 6 foot radius. What is the area of the semicircle?

Answers

Answer:56.52

let me know if this is wrong

Step-by-step explanation:

A=πr^2 divided by 2

(3.14)(6)^2

(3.14)(36)=113.04

113.04÷2=56.52

Find the value of x. Then find the m∠B and m∠C.

Answers

Answer:

X = 10

Step-by-step explanation:

HOPE it helped

giving brainliest for this

Answers

Answer:

1. loans

2. credit

3. interest

4. total value

5.

6.

7. compound

8. principal

9.

10.

Step-by-step explanation:

I don't know what 5, 6, 9, or 10 is

Find the missing angle.

Answers

Answer:

total angle of a triangle = 180°

other two angles = 85° , 65°

∴ the missing angle = 180 - ( 85 + 65 )

                                 = 180 - 150

                                 = 30

hope this answer helps you..

please mark as brainliest... thank you!

the missing angle is 30°. you add the other two and subtract it from 180° since a triangle is always 180°. hope this helps? can i please get brainliest?

Please help for brainliest:
Write the expression p^-2 in positive exponential form

Answers

Answer:

1/p^2

Step-by-step explanation:

To get rid of a negative exponent, make it under a 1/

Answer:

1/p³

Step-by-step explanation:

PHOTOGRAPHY Joseph subscribes to a website for processing his digital pictures. The subscription is $8 and 5-by-7-inch prints are $0.15 each. How many prints does Joseph purchase if the charge for January is $11?
help now i beg i will give brainlist plz

Answers

The answer is 20 prints.

Explanation:
The total cost is $11. Joseph paid $8 for the SUBSCRIPTION (NOT PRINTS) already, so we take away the 8 from 11, equaling in $3 left.
The question is asking for the amount of prints. Now that we only have 3 dollars left, we just divide that by the cost of each print (0.15) to see how many prints can go into that cost.
3 divided by 0.15 is 20. So, Joseph purchased 20 prints.

The table below shows the results of asking 200 people their favorite flavor of pie.






Question:
Which statement is not supported by the data in the table?

Answers

Answer:

Apple pie is the favorite pie of 24% of the people serveyed

Step-by-step explanation:

24% of 200 would be 48 people, making this statement incorrect.

Apple pie is the favorite pie 24% of the people serveyed

Jada has d dimes. She has more than 30 cents but less than a dollar.



Write two inequalities that represent how many dimes Jada has.

Answers

Answer: d3< d10>

Step-by-step explanation:

Can someone please help me find the area of the figure.

Answers

Answer:

17

Step-by-step explanation:

I did mental math

Answer:

rectangle=3*8 which is 24, and triangle is 4*5/2 do 24+10=34

Step-by-step explanation:

Is a plain the result of constructive forces, destructive forces, or both?

help pls ill give brainliest!

Answers

Answer:

best guess is both

Step-by-step explanation:

8th grade

Volcanoes can be destructive forces within the earth because they can ruin buildings, knock down trees, erupt the land, break apart rocks, and kill animals and plants, Volcanoes can be constructive forces too.

PLEASE HELP WILL GIVE BRAINLIEST

1. How’s your day going?
2. What’s 1+1
3. Please don’t report
4. What’s your favorite show/movie
5. What’s your favorite game

You only get Brainliest if you answer all 5 :D

Answers

Answer:

1. Good

2. The Answer is 2.

3. Yes.

4. The Hole.

5. Call Of Duty Warzone

Step-by-step explanation:

1. It was great!
2. 1+1=2
3. I won’t thanks :)
4. All the avengers movies & greys anatomy
5. Don’t really play games probably among us
Thank you so much!!

QUICK HELP ME! HELP HELP HELP HELP

Answers

........................?????

PLZ HURRY! Jenny mixed 4 kg of mixed nuts containing 16% peanuts with 12 kg of mixed nuts containing 40% peanuts. What percent of the new mixture if peanuts?

Answers

Answer:

34%

n = new % = Answer

(4kg x 16%) + (12kg x 40%) = (New Percentage(Total kg))
(.16 x 4) + (.4 x 12) = n(4 + 12)

Simplify above to get:

.64 + 4.8 = 16n
.64 + 4.8 = 5.44
5.44 = 16n
Divide both sides by 16
.34 = n
34%
Convert .34 to Percentage by moving decimal to the right 2 times.

MaybeKuro

Which statement describes the graph??

Answers

Answer:

the third ansswer choice

Step-by-step explanation:

C would be the answer.

Can you please help thxs.

Answers

It’s 47. I got it by adding which i’m pretty sure u do for volume.

someone please help PLEASEE ZOOM IN TO READ THE QUESTION PLEASEE HELP
a) 3/7
b)3/10
c)2/5
d)1/2

Answers

1/2 i think so if i wrong sorry

Charity sold 110 cookies for $0.75 each. Her cost to make each cookie was $0.20 plus $20 for boxes. How much profit will charity make on this sale?
A $64.50
B $62.50
C$60.50
D$40.50. Please I really need HELP !!!

Answers

The anwser is $40.50

Im still not sure, can someone help me?

(I will give brainliest)
(NO LINKS OR FILES)

Answers

Answer:

# 3) 3 miles

# 4) 6 miles

I would say it’s C and C

Write and Solve Equations-Word Problems

For each context, draw a model, write an equation, and then write a complete sentence to answer the question in the context.

Answers

Answer:

Step-by-step explanation: it would be josh has 2 jars of jelly

The number of coins in the red jar is 83 and the number of coins in the red jar is 110.

How to find the equation of the words problem?

The blue jar has 27 more coins than the red jar. There are total of 193 coins.

The number of coins in each jar can be calculated as follows:

Using equation,

let

x = coins in the red jar

Therefore,

coins in the blue jar = 27 + x

Therefore,

total coins in the jars = x + 27 + x

193 = x + x + 27

193 - 27 = 2x

166 = 2x

divide both sides by 2

x = 166 / 2

x = 83

Therefore,

number of coins in the red jar = 83

number of coins in the blue jar = 83 + 27 = 110

learn more on equation here: https://brainly.com/question/28992296

#SPJ1

Mr. Halili has challenged the students to a mile run. He is able to run a mile in 7 minutes. What is his speed in miles/minute? Convert this into miles per hour (hint: there are 60 minutes in an hour).

Answers

Answer: 1/7 miles per minute ≈ 0.14 miles per minute

For mph you multiply the result by 60

60/7 miles per hour ≈ 8.57 miles per hour

Angle 1 and Angle 2 are supplementary. If m∠1=27° , what is m∠2 ?

Answers

Answer:

m∠2 = 153°

Step-by-step explanation:

If Angle 1 and Angle 2 are supplementary, then that means they both add up to 180°.

180 - 27 = 153

m∠2 = 153°

The answer will be 153 degrees !!

PLS HELP!!!! I DON'T GET ANY OF THIS,I WILL GIVE BRAINLEST TO THE FIRST ANSWER

Answers

Answer:

theoretical- what is expected to happen, 1/2

experimental- what actually happened, 1/10

Step-by-step explanation:

theoretical does not always mean that it will happen, such as flipping a coin.

it will say there is a 1/2 chance to get heads or tail.

experimental is what actually happens when you test it out. say you flip a coin 10 times and only get heads 3 times. if it was the theoretical possibility then it would say 5 heads and 5 tails.

The graph shows Elizabeth’s speed during a 55-minute run. During which time interval did Elizabeth’s speed increase?

Answers

Answer:

0 - 5

Step-by-step explanation:

HELP ME RIGHT AWAY PLEASE

Answers

You just have to multiply the independent value (# of months) by the amount per month (dependent value). Your chart should look something like this:

1. Consider the surface area of the following pyramid.

Calculate the total surface area of the pyramid. PLZZZZ SHOW YOURE WORK!

Answers

Answer:

94.8

Step-by-step explanation:

you add all the fours an 3 an then what ever it adds up to make that number mutlipe 2.24 yw

Gotcha just give me a sec
T.S.A of pyramid = 12pl+B
P stands for perimeter of base l stands for slant height and B stands for area of base now u can put in values by finding each of the above

I need help lol... find the value of x

Answers

Answer:

B. x=37

Step-by-step explanation:

These are vertical opposite angles and they are equal to each other.

so, 2x+6=80

2x=74

x=37

37 bestie so true...

If you could explain to me how you get the answer, that will be great!

Answers

Answer: 48 cm^2

Step-by-step explanation:

find the surface area of the rectangles and squares

3(4)=12

3(3)=9

5(3)=15

find the surface area of the triangle

SA=bh÷2

3(4)=12

12÷2=6

both of the triangles have the same base and height so multiply it by 2

6(2)=12

add all of the surface areas

12+9+15+6+6=48

Can you help me with this question show your work of how you got your answer this due in 16 minutes NO LINKS OR DOING IT JUST FOR THE POINTS AND NO STEALING MY POINTS WITH RANDOM ANSWERS i need the full answer with work shown plss and thank you Will Give brainliest

Answers

Answer:

Nevermind im sorry because there's a vertex that isn't a whole number and i dont know how to do that, but the first ones are 6,8 and -6, 3 for the vertexes of the pre image, I dont  know how to do the other one. For the other image, one is 9, 7 and the other one is -3, 2. Again, I don't know how to do the other ones but I hope these at least help

plz answer this correctly with 10 points and brainiest ( I keep my words!)

Answers

Answer:

I do not agree with tem. 2^28 does not equal 2*28

Step-by-step explanation:

By the way, can you follow me on Brainly?

Thanks!

The perimeter of an airplane ticket is 30 centimeters. The area is 50 square centimeters. What are the dimensions of the ticket?

Answers

Answer:

The length can be 5 and the width 10.

Step-by-step explanation:

perimeter is equal to 2L + 2W

area is equal to L * W

you get 2 equations:

30 = 2L + 2W

50 = L*W

we'll solve by substitution.

you can use either equation to solve for either variable.

we'll use the second equation to solve for L.

second equation is:

50 = L*W

divide both sides of this equation by W to get:

L = 50/W

we now have a value of L that we can substitute in the first equation which we can then use to solve for W.

the first equation is:

30 = 2L + 2W

replace L with 50/W to get:

30 = 2*(50/W) + 2W

simplify to get:

30 = 100/W + 2W

multiply both sides of this equation by W to get:

30W = 100 + 2W^2

subtract 30W from both sides of this equation to get:

2W^2 - 30W + 100 = 0

factor this equation to get:

(2W - 20) * (W - 5) = 0

solve for W to get:

W = 10 or W = 5

if W = 10, then use the equation of 50 = L*W to get L = 5

if W = 5, then use the equation of 50 = L*W to get L = 10

you have 2 possible solutions.

L = 5 and W = 10 or:

L = 10 and W = 5

both are plausible so we'll test them both out.

when L = 5 and W = 10:

the first equation becomes 2*5 + 2*10 = 10 + 20 = 30

the second equation becomes 5*10 = 50

both equations confirm that the solution of L = 5 and W = 10 is good.

when L = 10 andW = 5:

the first equation becomes 2*10 + 2*5 = 20 + 10 = 30

the second equation becomes 10*5 = 5

both equations confirm that the solution of L = 10 and W = 5 is good.

the ticket can have either:

a length of 5 and a width of 10 or:

a length of 10 and a width of 5.

since the length is usually longer than the width, you are free to choose that the ticket most likely has a length of 10 and a width of 5.

alternatively, you can simply say that the dimensions are 5 by 10 and let the recipient of that information determine which is the length and which is the width.

mathematically, the length can be 10 and the width 5 or the length can be 5 and the width 10.

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