Mathematics Middle School

PLS HELP OMG
The area of a square is given by this polynomial

4x2 - 36x + 81

Which expression reprents the length of one side of the square?

a
2x -9
b
2x + 9
c
4x - 18
d
4x + 18

Answers

Answer 1
This is quick to see with square root of 81 being 9 and the middle sign being a minus. (a) 2x-9 is the answer
Answer 2

Answer:

a)  2x - 9

Step-by-step explanation:

The length is the square root of the whole equation.

Sq rt over all 4x^2-36x+81

= 2x - 9

Related Questions

Hello! Please help with this question! I really need to bring my grade up and this question is difficult for me. Thank you!

This spinner will be spun twice.

What is the probability of spinning an odd number both times?

Question 3 options:

18

34

12

14

Answers

Answer:

50%

1/2

Step-by-step explanation:

1/2 because there is a 50% chance of landing on 1 or 3. and 50% for 2 and 4

1/4 because 50% chance of landing on 1 or 3 two times. Half of one half is 1/4

1. Select all the statements that correctly describe the expression. 5 to the power of 2 x (7z + 4)

Answers

Answer:

First you do what is inside the parentheses. 10 x 5 - 3. 50 - 3 =47. Then you multiply 47 x 5 = 235.

Step-by-step explanation:

Find the area of the circle. Round to the nearest tenth. Use 3.14 for pi ':)

Answers

Answer:

78.5

Step-by-step explanation:

The formula to find the area of a circle is a = pi r^2

but in this case, pi is 3.14 and r is 5.

So you would do 3.14(5)^2

= 78.5

Hope this helps

Plz help. Giving brainliest to complete and correct answers. absurd answers will be reported.

Answers

she could try to reduce variable costs

Answer:

Sara could try to lower her expenses. It is clear that she spends to much money and her income is low. I’m summary, Sara needs to stop spending so much money and probably get a better job that pays more to increase her income.

I really hope this helps, good luck! ;)

Please help me on this question

Answers

I am stuck on same thing as u

Step-by-step explanation:

Function a has a intercept of (0,2) this goes with the table. The parabola has a y intercept of (0,-3) this goes with the parabola. Whenever finding the y intercept look at where the graph hits the y axis. Hope this helps!

Find the surface area of the square pyramid. Enter your answer in the box.

Answers

Answer:

341cm²

Step-by-step explanation:

Hope you will understand and Hopefully it's correct

Keisha rolls two 6-sided number cubes. What is the probability that she will roll a number less than 7? (Leave your answer as a simplified fraction)

Answers

Answer:

Keisha will always roll 6 since both sides are 6 sided or 6/6.

Tell me if Im wrong, I will correct it ASAP.

Trevor is painting the front door of his house. The dimensions of the door are 812 feet by 212 feet by 3 inches. If he paints all of the surfaces with 2 coats of paint, how much total area will he paint?

Answers

Answer:

Below!

Step-by-step explanation:

Step 1:

Convert!

812 x 12 = 9744

212 x 12 = 2544

Step 2:

Multiply the new dimensions!

9744 x 2544 x 3

Step 3:

The answer would be:

74366208 in.

BUT!

We're not done yet!

Step 4:

Duplicate it!

REAL ANSWER:

148732416  in. or 12394368 feet!

Ajdbjfrbbdksbwnshhf

What is the internal angle sum of a quadrilateral? (Hint: A quadirlateral has 4 sides.) OA) 90 OB) 180 OC) 360 OD 540

A.) 90°
B.) 180°
C.) 360°
D.) 540°​

Answers

The internal angle sum of a quadrilateral is :

C. 360°

The sum of internal angles of a polygon is determined by a formula :

[tex] \longmapsto (n - 2) × 180° [/tex]

where n represents number of sides.

In a quadrilateral there are four sides,

So, plugging 4 in the formula :

[tex](4 - 2) \times 180°[/tex]

[tex]2 \times 180°[/tex]

[tex]360°[/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

Answer:

C. 360

Step-by-step explanation:

Please help, quickly if possible

Answers

Answer:

the first one because it has more flowers

Step-by-step explanation:

Answer: B. 2/3

Step-by-step explanation:

4 x 3: 12  

4 x 2: 8

At one store, a DVD is on sale for 25% off regular price of $26.99. At another store, the same DVD is on sale for 30% off regular price of $29.99. Why should you buy the DVD at the first store?

a. 30% is more than 25%
b. $26.99 is less than $29.99
c. 75% of $26.99 is less than 70% of $29.99

Answers

B is the answer i think
B.
Hope that helped and good luck!

r∕5 - 15 = 18
help me pls

Answers

Answer: r= 165

5−15+15=18+15

The volume of the triangular pyramid below is 12.5 cm. What is the height of the pyramid? 6 cm 5 cm​

Answers

Answer:

A. 2.5 cm

Step-by-step explanation:

h = 3×V / A

= 3× 12.5 /(½×5×6)

= 37.5 / 15

= 2.5 cm

The answer is 2.5 cm

What are the answers to this problem?? Other than b c and f??? Please help. No bots are acceptable

Answers

i believe E is also correct
E is the correct answer

Remake for the last one

Answers

Umm how about yikes

19. When baking a cake, you have a choice of the following pans:
1. a round cake pan that is 2 inches deep and has a 7-inch diameter
2. a 6 inch × 9-inch rectangular cake pan that is 2 inches deep
Which of these pans has the larger volume? Justify your answer.

Note: Write an essay-like answer, and I will give brainliest and rating.

Answers

The answer is

round cake - 82.42 in²

rectangular cake - 114 in²

Round cake:

d = 7 in

r = d/2 = 7 in / 2 = 3.5 in

h = 2 in

The surface are of a cylinder is:

A = 2πr² + 2πrh

The surface are of the round cake (which is actually a cylindrical cake) excluding the bottom is:

A = 2πr² + 2πrh - πr²

A = πr² + 2πrh

A = 3.14 * 3.5² + 2 * 3.14 * 3.5 * 2

= 38.46 + 43.96

= 82.42 in²

Rectangular cake:

w = 6 in

l = 9 in

h = 2 in

The surface are of a rectangle is:

A = 2wl + 2wh + 2lh

The surface are of the rectangular cake excluding the bottom is:

A = 2wl + 2wh + 2lh - wl

A = wl + 2wh + 2lh

A = 6 * 9 + 2 * 6 * 2 + 2 * 9 * 2

= 54 + 24 + 36

= 114 in²

Step-by-step explanation: This answer is not mine but JcAlmighty’s so all credits go to them.

114 ....................

pls answer quick ill give more points if right.

The problem solving plan identifies steps to organize your information. Which of the following answer choices are included in the steps to organize your information?
A. Organize the problem and find the question.
B. Solve the problem and change your strategy if necessary.
C. Write the facts, organize your thoughts and define your strategy.
D. Organize the steps and underline the question.

Answers

Answer:

I WOULD SAY C! IT MAKES THE MOST SENES

Step-by-step explanation:

   Defining the problem.

   Generating alternatives.

   Evaluating and selecting alternatives.

   Implementing solutions.

C says "Write the facts, organize your thoughts and define your strategy."

C I believe it makes the most sense.

Determine which of the following sets of ordered pairs represents a function.


A. {(12,−9), (12,4), (12,3), (12,−1)}

B. {(4,−9), (10,12), (4,3), (10,−1)}

C. {(−16,−9), (10,4), (7,3), (−16,−1)}

D. {(−16,−9), (10,−9), (4,−9), (7,−9)}

Answers

Answer:

D

Step-by-step explanation:

A. One-to-many relation is NOT a function

B. One-to-many relation is NOT a function

C. One-to-many relation is NOT a function

D. Many-to-one relation ia a function

Find the value of x for the following problems 1-3.

Answers

1) 87°
2) 38°
3) x= 37
Okay soooo
1: 87
2: 38
3: x=37

can someone help? please explain how to do it and get it right (i will give brainliest to best answer)

Answers

Your answer should be D.
Explaination: 2006 divided by 80 (all the citizens added up) is 25.075. Multiply it by 38, it’s 952.85. Rounded up, its 953

PLEASE HELP I DONT UNDERSTAND AND MY HEAD IS HURTING I WILL GIVE YOU BRAINLIEST!!!! (LIKE LITERALLY MY HEAD HURTS) i will give 20 pts

Answers

What kind work are they giving nowadays I don’t even understand that, just pray bro
code is 7890 your welcom

Which word means almost the same as the word urged?

a asked
b mentioned
c persuaded
d suggested

Answers

C because its more pushy than the rest if you get what im saying

Answer:

I would say suggested

Step-by-step explanation:

What is the average rate of change of the function f(x) = x^2 on the interval from x=2 to x=4?

a. 12
b. 10
c. 6
d. 2

Answers

The answer is c
Step by step:

Which is the lateral surface area of the triangular prism below? 5.6 in 3.1 in 1.2 in 5.3 in 5.5 in

​

Answers

Step-by-step explanation:

LS = (5.5+5.6+3.1)(1.2)

= 17.04 in²

Which is the lateral sirgace area of the triangular prism below 5.5

A triangular prism. The rectangular sides are 2 centimeters by 13 centimeters, 12 centimeters by 2 centimeters, and 5 centimeters by 2 centimeters. The 2 triangular sides have a base of 5 centimeters and height of 12 centimeters. Which equation could be used to find the surface area of the net of the triangular prism shown? SA = (1/2)(5)(12) + (5)(2) + (12)(2) + (13)(2) SA = (1/2) (5)(13) + (1/2) (5)(13) + (5)(2) + (13)(2) + (12)(2) SA = (1/2)(5)(12) + (1/2)(5)(12) + (5)(2) + (12)(2) + (13)(2) SA = (2)(5)(13) + (5)(2) + (13)(2) + (12)(2)

Answers

56x32 plus 32x 55 and 63-34

Answer:

C

Step-by-step explanation:

Please Help! Due in 1 hour

Answers

Answer:

Below :)

Step-by-step explanation:

Part A

The answer would be A and D

Part B

They add up to 308 cubic feet

Please mark brainliest!

part a would be a and d and part b is that they would add up to 308 cubic feet

hi help me with this please!!

Answers

The answer would be B

14. Willa received a package in the mail with the
dimensions shown below.
5.5 in.
3.1 in
12.4 in.
Find the total surface area of the package Willa
received
A. 76.88 in 2
B. 170.5 in.2
C. 211.42 in 2
D. 247.38 in.2

Answers

The answer is D. I hope this helps. I don’t have a long explanation but I hope you enjoy your day!
the answer is D i did the math

The circumference of a circle is 15 pi ft. What is the area, in square feet? Express your
answer in terms of pi

Answers

Answer:

56.25

Step-by-step explanation:

Answer:

5.7π

Step-by-step explanation:

Please solve; x = −b ± √b²-4ac/2a.

Answers

Answer:

xD

Step-by-step explanation:

Have a great day lol thxs for the points

Answer:

-b ± (-2bc)

Step-by-step explanation:

Pull terms out from under the radical, assuming positive real numbers.

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