Maribel factored y2 −30y + 81 as (y−9)2 . Was she right or wrong? How do you know?

Answers

Answer 1

Answer:

Wrong

Step-by-step explanation:

If you multiply (y-9)(y-9) the answer equal y2-18y+81.


Related Questions

what is the solution set for 2x2+15=-11x

Answers

Answer:

2x^2+11x+15=0

factor

2x^2+6x+5x+15=0

2x(x+3)+5(x+3)=0

(2x+5)(x+3)=0

x=-3 and x=-5/2

Which ones are functions and which are not?

Answers

Answer:

relation 2 is not a function.

Step-by-step explanation:

objects in function can only have one image.

How many millimeters are in 5 centimeters?

5 mm
50 mm
500 mm
5,000 mm

Answers

Answer:

50 mm

Step-by-step explanation: i did the test and i got it right

Answer:

50 millimeters are in 5 centimeters. You have to multiply the value by 10 to get your answer when converting centimeters to millimeters.

__________________________________________________________

Questions related to this topic? Ask me in the comments box.

Consider the line 2x+6y= -4. What is the slope of a line perpendicular to this line? What is the slope of a line parallel to this line?​

Answers

Answer:

the slope of the line perpendicular to that line is 6/2

Step-by-step explanation:

Find the slope of the original equation by putting it into y=mx + b form

2x+6y=-4                  Given

2x-(2x)+6y=-4-(2x)   Subtract 2x from both sides

6y= -2x -4                Simplify

6y/6= -2x/6 -4/6      Divide both sides by 6

y= -2/6 x - 4/6          Simplify

*perpendicular slopes are opposite reciprocals*

-2/6 = slope

2/6 is the opposite of -2/6

6/2 is reciprocal of 2/6

The table below shows the number of people in a spinning class each day last week.
What is the mean number of people in a class?​

Answers

well to find the mean you need to add up the total number of people and then divide by the total number of days meaning if there is a total of 105 people, you would divide that by 5 and get 21

13 + 23 + 24 + 31 + 14 = 105

105 / 5 = 21

Based on the information provided, the mean number of people in a class is 21 people.

How to calculate the mean number of people?

To calculate the mean number, the general formula is the total of people in the class/ number of classes.

Then, let's find the total of people in classes by adding the number of people that are in class every day:

13+23+24+31+14 =  105 people in total

Number of classes: 5 classes or 5 days

The mean number of people in a class: Divide the total of people by the number of classes

105 / 5 = 21 people per class in average

Learn more about the mean in https://brainly.com/question/31101410

#SPJ2

Urgent please help!!!!

Answers

Answer:

18 or D

Step-by-step explanation:

12/x = 2/3

so (12 × 3)/2 = answer

answer: 18

In AABC, m ZA=36° and m ZB =92°. What is M ?

Answers

m∠C = 52°

The total interior angle of a triangle sum ups to 180°

Solve:

m∠A + m∠B + m∠C = 180°

36° + 92° + m∠C = 180°

m∠C = 180°  - 92° - 36°

m∠C = 52°

Answer:

m∠C = 52°

Step-by-step explanation:

Angle Sum Property

∠A + ∠B + ∠C = 180°

Here we have :

∠A = 36°∠B = 92°

Solving :

36° + 92° + ∠C = 180°∠C + 128° = 180°∠C = 52°

What is the surface area?

Answers

Answer:

130 in^2.

Step-by-step explanation:

It has 8 faces

Surface area = 4*2 + 1*2 + 3*2 + 5*2 + 7*2 + 6*2 +  6*7-3 + 6*7-3

= 8+2+6+10+14+12+39+39

= 130 in^2.

Solve for x

A) 12
B) 13
C) 10
D) 11

Answers

Answer: A)12

Step-by-step explanation:

The line YZ must be half the size of the line QS, so double the length of YZ should be equivalent to the value of QS

2(x+2)=2x+4

Now we can set them equal to each other and solve for x

[tex]2x+4=3x-8\\2x+4+8=3x-8+8\\2x+12=3x\\2x-2x+12=3x-2x\\12=x[/tex]

What is the volume of the following rectangular prism?

Volume =____ units^3

Answers

Step-by-step explanation:

green = surface area

5/2 × 27/5 = 13.5 unit³

the original price of an Audio Jukebox was $260 it is on sale for $240. what
percent discount does this represent?

Answers

Step-by-step explanation:

Roughly 8%

The exact answer is 7.6923076923

Pls help me
Pls show your answer pls and thank you

Answers

Answer:Pls help mePls show your answer pls and thank you

Pls help mePls show your answer pls and thank you

Step-by-step explanation:Pls help mePls show your answer pls and thank you

bot responded dont reply


What is the value of x in the diagram?

Answers

Answer:

C. 20(degree symbol)

Step-by-step explanation:

lol I couldn't find the degree symbol so I just did that

hope this helps :)

which correctly gives the slope and y-intercept of the line represented by the equation below x-y=2

Answers

Answer:

y int = -2

slope = 1

Step-by-step explanation:

x-y=2

-y=-x+2

y=x-2

y int = -2

slope = 1

Answer:

Slope = 1

Y-intercept = -2

Step-by-step explanation:

   First, we will put it into slope-intercept form.

x - y = 2

x = y + 2

y = x - 2

   This gives us the slope of one and the y-intercept being -2.

   Check attachments for more information on slope-intercept form as well as the line graphed.

this is a k 12 question

Answers

Total is 45-5 = 40, because it starts at 5, tricky haha

Area in interest is 30-20 = 10

What percentage is 10 of 40?

10/40 = 0.25

0.25*100 = 25%

Brainiest

Look at the following solution of the equation x raised to the power of 6=64.

x raised to the power of 6=64

so, x raised to the power of 3=8

so, x=2

There is an error in this solution. Write a corrected version.

Answers

Answer:

Nothing wrong with the solution x = 2

Step-by-step explanation:

2^6 = 64

2^3= 8

Hence x = 2

Dans une boîte, il y a des jetons de différentes formes (triangle, disque flèche) décorées avec trois sortes de motif.
Flèch
Formes Triangle
30
Disque
10
Total
48
Motif
Motif 1
Motif 2
Motif 3
9
AD
4
16
90
45
23
Total

Answers

Answer:

The anwer for the top row is 30, 10, 8, and 48. The next row is 9, 8, 9, and 26. The next row is 6, 4, 6, and 16. The last row is 45, 22, 23, and 90.

Step-by-step explanation:

Simplify the radical expression. [tex]\sqrt{400/5}[/tex]

Answers

Answer:

option c is correct answer

Step-by-step explanation:

since 4×4×5=80

While 400/5=80

if i have a dog and she weighs 31.8 kilograms how many grams is equivalent to 31.8 kilograms

Answers

Answer:31800grams

Step-by-step explanation:

What is the length of segment NS?

1 unit
2 units
4 units
6 units

Answers

Answer: 4 units

Step-by-step explanation:

Answer:

c. 4 units

Step-by-step explanation:

I'm an even number.
I'm > 758 and <893.
I'm a multiple of 100.
What am I?

Answers

Answer:

800

Step-by-step explanation:

Multiples of 100 to 1000:

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000.

|___________________________|         |________|

                These dont match the given criteria.

800 is greater than 758 and less than 893.

Hope that helps

•** Pls Help Me **•

Pls show your work thank you

Answers

Answer: 34 cm^2.

Step-by-step explanation: To find the area of a trapezoid, you need to add base 1 and base 2, multiply the height, and divide it all by 1/2.  The steps are done below:

Find base 1, base 2, and the height: To find base 1 and base 2, you find the top and bottom lengths of the trapezoid.  5 is the top and 12 is the bottom of the trapezoid.  You can assign whichever base to whichever number, as long as base 1 and base 2 have a number.  For this problem, we'll assign 5 for base 1 and 12 for base 2.  To find the height, you need to find the height of the trapezoid, which is 4.Make an equation: The equation should look like the following...         5 (base 1) + 12 (base 2) x 4 (height) / 1/2.Solve: The first thing you should do when solving is to add the bases together, which is 17.  Next multiply the height which is 4, by 17, which is 68.  Lastly divide 68 by 2, which can be done in two ways.  You can either simply divide 68 by 2 or multiply 68 by 1/2, which will both give you the same answer.  68 x 1/2 = 34.

Therefore, your answer is 34 cm^2.  There's an image below if you need additional information.

Hope this helps! :)

H
Write the decimal as a fraction.
0.5 = 11
[?]
Simplify your answer completely.

Answers

Step-by-step explanation:

The answer to Your Question in the image is 2/3

2/3=0.6_

Prospect Creek, Alaska, holds the U.S. record for the coldest temperature, -62.1C. What is the temperature in Fahrenheit

Answers

Answer:

i don't understand the last one?

A model house has a scale of
lin: 2ft. If the real house is 26 ft
wide, then how wide is the
model house?

Answers

Answer: Assuming that you mean 1in:2ft the model house would be 13 inches wide.

Step-by-step explanation: well 1 is half of 2 right? So if you want to get the numbers easier to use then just divide that 26 by 2 and then you get the scale 1in:1ft. From there it is easy, 13 feet of the real house= 13 inches in the model house

What is the degree of the polynomials below
2x^7+4-3x^3+5x^8-4x

Answers

The Answer should be 8

Tell whether the triangle with the given side lengths is a right triangle

14mm, 19mm, 23mm

Answers

Answer:

  not a right triangle

Step-by-step explanation:

The side lengths of a right triangle will satisfy the relation given by the Pythagorean theorem:

  c² = a² +b²

  23² = 14² +19²

  529 = 196 +361

  529 = 557 . . . . . . . . not true; not a right triangle

__

The longest side (23 mm) is too short for a right triangle, so the angle opposite will be smaller than 90°. This is an acute triangle.

_____

If you're doing a bunch of these comparisons, use of a triangle solver app or spreadsheet can help.

Why isn’t there any answer to this I need this or I have to do my grade over again and I don’t want to do that so please give me an answer for this

Answers

Answer:

see below

Step-by-step explanation:

When a = -1   and  b = -2    U = a-b    

                                                   -1 - -2 = 1    U =1

when a = -4   and  b = 1          V = a-b =   - 4 - 1 =-5    V = -5

If the spinner below is spun twice, find the probability that it lands on N, then a vowel.

Answers

Answer:

0.29 or 29%

Step-by-step explanation:

There are 7 options per spin. Of which 3 vowels.

For 2 spins, total spins is 14.

conditions:

First spin is 1/7

Second spin is 3/7

so,

4/14 = 0.29 or 29% I think

The most common ages of children that use the library are

Answers

Answer:

12-17

Step-by-step explanation:

this is right. trust (:

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