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

Help me out pls

thanks!

Answers

The answer is 2 I hope this is right

What's the surface area?

(EXPLAIN YOUR ANSWER)

Answers

714,110ft



Hope this helpsss

Can someone please help me with this question I need to know the area of the shaded region.

Answers

Answer:

area = 169.76 cm²

Step-by-step explanation:

area of rectangle = 20 x 11 = 220 cm²

area of circle = π4² = 50.24 cm²

deduct circle from rectangle area = 220 - 50.24 = 169.76 cm²

You earn $45.50 each year on an investment. What is the rate of simple interest if your initial investment was $750?

Answers

6.0666...%

You probably need to round it to the nearest tenth (6.1%) or hundredth(6.07%). If you need to the nearest thousandth, it is 6.067%.

Interest/Investment = the percent interest (or return)

$45.50/$750=0.060666...
0.060666...*100%=6.0666...%
6.0666.... % i hope this helpedddd

5th Grade U.S Studies Weekly- Week 24 Answer Key
(Please create one)
Topic: Hardships of War
Ft. Abigail Smith Adams
Ft. Mercy Otis Warren
Ft. Martha Dandridge Custis Washington
Ft. Molly Pitcher
Ft. Phillis Wheatley American Poet
Ft. Sybil Ludington

Q: to collect and hide food our supplies
A: __________________________

Q: Robert Shurtleff's real first name
A: __________________________

Q: general who thanked Sybil Ludington for her bravery
A: __________________________

Q: raising of prices over a period of time
A: (Is this answer, inflation?) _________

Q: wrote politically plays and poetry
A: __________________________

Q: someone who raises prices on goods that are scarce
A: __________________________

Q: plantation owner
A: __________________________

Q: Congress raised money by selling debt _____
A: __________________________

Q: took her husband's place in battle
A: __________________________

Thank you so much! You are so well appreciated. I'll offer you brainliest. Please leave a comment if you'd like brainliest. THANK YOU!!!

Answers

You should try and put it in another way it doesn’t make sense

The base of a triangle is 9 units more than h, its height. Write an algebraic expression that represents its area in terms of h

Answers

Answer:

Step-by-step explanation:

cn n .mxn

Can someone help????

Answers

Answer:

14 blocks

Step-by-step explanation:

Answer:

(-2,1), (2,5), (-6,1), (2,-3)

Step-by-step explanation:

just go four spaces in each direction

2. If x1 is 3 and x2 is 2, how would you use the numbers in the slope formula?​

Answers

Answer:

m = y2 - y1 / 2 - 3

Step-by-step explanation:

I believe it is asking you to plug in the numbers into the equation.

m=y2-y1/2-3 j agree with the other person that just answered

There are 4 classrooms for fifth grade and 4 classrooms for sixth grade at a school. Each classroom has 20 students. A teacher is planning a field trip for some fifth and sixth grade students at this school. The teacher knows the following information: 90% of fifth and sixth grade students have permission to go on the trip. 4 teachers are going on the trip. The school requires 1 parent volunteer for every 8 students going on the trip. Part A How many parent volunteers are needed to go on the trip? Show your work or explain your answer. Enter your answer and your work or explanation. Part B All of the students, teachers, and parents going on the trip must ride in a school bus. The teacher needs to reserve 1 school bus for every 44 people. How many school buses does the teacher need to reserve? Show your work or explain your answer. Enter your answer and your work or explanation

Answers

Answer:

18

Step-by-step explanation:

Fifth grade has 80 students and sixth grade has 80 students. so if you get 90% of both then you have 72 and 72. Add and divide by 8 and you have the answer of 18 parent volunteers going.

There are a total of 8 classrooms with 20 students each, for a total of 160 fifth and sixth grade students.

What is volunteer?

It is a person who does something, particularly helping others, voluntarily and without being forced or paid to do so.

Part A:

There are a total of 8 classrooms with 20 students each, for a total of 160 fifth and sixth grade students. 90% of them have permission to go on the trip, so:

0.9 x 160 = 144 students have permission to go on the trip

To calculate the number of parent volunteers needed, we divide the number of students by 8:

144 ÷ 8 = 18 parent volunteers needed

Therefore, the teacher needs to find 18 parent volunteers to go on the trip.

Part B:

The total number of people going on the trip is:

144 (students) + 4 (teachers) + 18 (parent volunteers) = 166 people

To calculate the number of school buses needed, we divide the total number of people by 44:

166 ÷ 44 = 3.77

Thus, as we can't reserve a fraction of a school bus, we round up to the nearest whole number. Therefore, the teacher needs to reserve 4 school buses.

For more details regarding volunteers, visit:

https://brainly.com/question/31005009

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(-2,3) is one vertex of a square on a coordinate plane. Name three points that could be the other vertices.

Answers

Answer:

(0,7) and (-4,7)

(-2,3) is vertex

Equation is (X+2)2+3

When x = 0, y = 7 and when x = -4, y = 7

(-2,3) is one vertex of a square on a coordinate plane. (0,7) and (-4,7) could be the other vertices.

How can we perceive the cartesian coordinate plane?

The cartesian coordinate plane is an infinite 2-dimensional plane. Any 2-dimensional figure can be drawn on an infinite 2d plane.

Each point of a cartesian plane is tracked by a location.

It is the perpendicular distance of that point from the horizontal axis and vertical axis usually named the x-axis and y-axis.

The location is then written as: (a,b), where 'a' is that point's shortest distance from the y-axis and called the x-coordinate of that point, and 'b' is that point's shortest distance from the x-axis and called the y-coordinate of that point.

(-2,3) is one vertex of a square on a coordinate plane.

The equation is [tex](X+2)^2+3[/tex]

When x = 0,

[tex](0+2)^2+3\\\\4+3[/tex]

y = 7  

when x = -4,

[tex](-4+2)^2+3\\\\4+3[/tex]

y = 7

Learn more about coordinate plane here:

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You walk 2 miles in 1/2 hour. At that rate, how long will it take you to walk 3 miles?

Answers

Answer:

3/4 hour.

Step-by-step explanation:

2:1/2 = 1:1/4 = 3:3/4

Hope this helps!!!

Answer:

The answer is 45 minutes.  I think.

Step-by-step explanation:

I'm sorry if the answer is incorrect.

Answer pleaseeeeeeeeeeeeeee pretty please

Answers

Answer:P= 10+6xmm

Step-by-step explanation:

answer is : P=10+6mm

A few questions I need answered:

1. The ratio of Victoria's weight to Kazuki's weight was 4 to 5. If Victoria's weight increased by 5 lb. and Kazuki's weight decreased by 1 lb., Victoria would have the same weight as Kazuki. What was Victoria's original weight?

2. Last year, the ratio of the number of boys to the number of girls in the computer Club 1 : 2. This year, 70 new members joined the computer Club. There are now four times as many boys and three times as many girls as last year. How many members were in the computer club last year?

3. Lily and Mackenzie collected some stamps. If Lily gave 4 stamps to Mackenzie, Mackenzie would have twice as many stamps as Lily. If Mackenzie gave 4 stamps to Lily, they would have the same number of stamps. How many stamps did each girl have?

WILL GIVE BRAINLIEST. PLS SHOW YOUR WORK. 10 POINTS.

Answers

2)

Answer:

100

Step-by-step explanation:

Last year:

boy:girl

1 : 2

This year:

+70

boy:girl

1×4 :2×3

4 :6

70=7

so,1=10

All members:10×10=100(because(4+6)=10)

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

Please help meeeeeeeeee

Answers

Step-by-step explanation:

1. 10-(2+3) = 5

2. 2x3 - 10 = -4

3. 3 x (4-2) = 6

4. (3+5) / 4 = 2

5. (5-2) x 3 = 9

6. (9-4) + 5 = 10

1) 10 - (2+3) = 5

2) 10 - (2x3) = 4

3) 3 x (4-2) = 6

4) (3+5) / 4 = 2

5) (5-2) x 3 = 9

6) 5 + (9-4) = 10

Can someone please help me with this need verified answer pls

Answers

Answer:

1130.97336

Step-by-step explanation:

V=πr^2h = π·6^2·10 = 1130.97336

can someone pls help

Answers

I think it’s A but I’m not completely sure

An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $5660 and his stock in Company B was worth $2500. The stock in Company A has increased 5% since last year and the stock in Company B has increased 9%. What was the total percentage increase in the investor's stock account? Round your answer to the nearest tenth (if necessary).

Answers

8,160.. but rounding would be 8170 sooo both increased by 5 and 9 percent would be 1270 and 1507 !

The total percentage increase in the investor's stock account will be 8.6%.

What is the percentage?

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The amount he earned from company A and company B is given as,

Earned = $5660 x 0.05 + $2500 x 0.09

Earned = $283 + $225

Earned = $508

Then the total percentage increase in the investor's stock account is given as,

P = [(508) / (5660 + 2500)] x 100

P = (508 / 5910) x 100

P = 0.086 x 100

P = 8.6%

The total percentage increase in the investor's stock account will be 8.6%.

More about the percentage link is given below.

https://brainly.com/question/8011401

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Use the triangle formed by the vertices L(—3, 4), A(O, 5) and D(2, l). AL' A'D' is a triangle formed by using the transformation rule (x, y) —5 (—x, y) .

a. What type of transformation is ALAD —AL'A'D'?

b. Are A LAD and AL'A'D'congruent or similar?

A and B are not answer but parts to the question

Answers

Huh?

Step-by-step explanation:

YOUR LEARNING THIS IN MIDDLE SCHOOL?

Determine the constant rate of change. please know what is before answering.

Answers

The constant rate of change is 82

During production, a manufacturer of clock radios pulls every 75th radio from the assembly line to check for overall quality.
a. Biased, voluntary response sample
b. Unbiased, stratified random sample
c. Unbiased, systematic random sample
d. Unbiased, simple random sample

Answers

Answer:

Unbiased, systematic random sample Or C

Step-by-step explanation:

Answer:

your answer is C

Step-by-step explanation:

Just took it

ill give BRAINLIEST to the best answer

Can somebody make this trend line a linear equation?

Answers

Answer:

y=50x+100

Step-by

I am not really sure i will show you a screenshot

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

Hello may someone help me?

Answers

Answer:

The answer is 15 You have to add all the numbers then divide by the amount of numbers there are.

Step-by-step explanation:

Charity is selling girl scout cookies. She wants to figure out how much she needs to sell so she knows what her
profits will be. Each cookie costs $0.20 to make plus 20 dollars for boxes. Which equation below will help Charity
figure out her total cost, c, for 50 cookies?
A 0.2c = 70
B.c=50 ( 20 ) + 0.2
C.c=50 (0.2) +20
D c= 70 (0.2)

Answers

Answer:

d

Step-by-step explanation:

I'm so sorry if this isn't right

Answer:

C. 50 (.20) + 20

Step-by-step explanation:

50 is the numbers of cookies so in order to find the total cost of JUST cookies we multiply 50 by .2 which is each cookies cost.

Then we add an additional 20 for the box.

So we get 50 (.2) + 20.

*BONUS* The total cost for one box is $30

If you spin the spinner 48 times, what is the best prediction possible for the number of times it will land on pink or green? times

Answers

answer: the best prediction is about once .
hope this helps you out & I’m not 100% sure if this is right so sorry if it’s wrong .

The best prediction possible for the number of times it will land on pink or green is 48 times, As the total probability is 1.

What is probability?

Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.

Given, A spinner has 4 pink parts and 2 green parts.

The probability that it would land or pink or green is P(P) + P(G).

= (4/6) + (2/6).

= (4 + 2)/6.

= 6/6.

= 1.

Now, We know The expected value, also known as the expectation, average, is a generalization of the weighted average in the field of probability theory. Informally, the anticipated value is the arithmetic mean of a significant number of outcomes of a random variable that were independently chosen.

Therefore, The best prediction possible for the number of times it will land on pink or green is,

= 48[P(P) + P(G)].

= 48(1).

= 48 times.

learn more about probability here :

https://brainly.com/question/743546

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choose the best answer for the missing number

10
1
[tex]\frac{1}{100}[/tex]
[tex]\frac{1}{10\\}[/tex]

Answers

1/100 I think
If not I’m sorry

Pls help me I’ll give you 15 points

Answers

Answer:

number one is i thinks 10000000

Step-by-step explanation:

3. What is the classification of the pair of angles shown?

F. complementary
G. supplementary
H. vertical
I. no relationship
plz help i beg i need it i will give brainlist and 21 points

Answers

Answer: Supplementary angle
it’s supplementary angels

Find the surface area of the prism or pyramid. Round to the nearest hundredth if necessary.

Answers

Answer:

I don't know how to do this but maybe photo math can help

Answer: 147.35

Step-by-step explanation:

SA=1 base tri. + 3 lateral faces

SA=bh/2 + 3(bh/2)

SA=(7)(6.1)/2 + 3(7)(12)/2

SA=42.7/2 + 252/2

SA=21.35 + 126

SA=147.35

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