Maria writes the expression below. 21 + 3 + 6 + 9 − 3 Which expression could be shown to be equivalent to Maria's expression based on the commutative property of addition? Immersive Reader (20 Points) 12( + 2) 3( + 3) + 3(7 + 2 − 1) 3 + 9 + 21 + 6 − 3 3(7 + + 2 + 3 − 1)

Answers

Answer 1

Answer:

expresion happy

Step-by-step explanation:


Related Questions

Let f(x)=x^2+2 and g(x)=1-3x. Find each function value: f(g(-1))

Answers

Answer:

g(-1)=4 ,f(g(-1))=18

Step-by-step explanation:

g(-1):

1-3(-1)=4

f(g(-1)):

sub in g(-1) as x

(4)^2+2=18

This is 7th grade math pls help
DON'T PUT A RANDOM LINK JUST TO GET POINTS

Answers

Answer: ur correct

Step-by-step explananation

4
Select the correct answer.
Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. Shanla found the middle number of her scores. W
did she find?
O A.
a measure of center
OB.
a measure of variation
Ос.
a measure of neither variation nor center
OD.
a measure of both variation and center
Reset
Next

Answers

Answer:

A: Measure of center, also known as the Median.

Rina has 3 hours to finish her final math exam. Keeping in mind that there are 60 minutes in 1 hour, about how much time does she have for each question if there are 45 questions on the exam? 1.5 minutes

Answers

Ummmmmmm ok try reading it again and try multiplying or dividing the number and am not sure what your subject is but try doing it I am sure it would help

Which of the following best explains why cosine StartFraction 2 pi Over 3 EndFraction not-equals cosine StartFraction 5 pi Over 3 EndFraction

Answers

Answer:

B.)- Cosine is negative in the second quadrant and positive in the fourth quadrant.  

Step-by-step explanation:

Answer:

B.) Cosine is negative in the second quadrant and positive in the fourth quadrant. i just took the quiz

Step-by-step explanation:

I hope this helped ;)

In which set do all values make the inequality 3x+5<26 true?

Answers

2x - 1 < 10

Add 1 to both sides:

2x < 11

Divide both sides by 2:

x < 5.5

Answers must be smaller than 5.5, therefore option (D) is the answer.

Answer: D. {2, 3, 4}

<3 - Bee

based on the area of the squares determine whether the triangle shown is a right triangle.​

Answers

Answer:

No, it is not a right triangle.

Step-by-step explanation:

Answer:

not a right triangle

Step-by-step explanation:

I KNOW ITS NOT MATH BUT PLS ANSWER WITH A CORRECT RESPONSE

Despite medical warnings, a______number of Americans still use tobacco.


OPTIONS


A. Moderate


B. High


C. Low

Answers

Moderate is the answer

Answer:

I'm pretty sure the answer is Despite medical warnings, a  (B) high number of Americans still use tobacco.

Step-by-step explanation:

A lighthouse can light up to 40 miles away through an angle of 125 degrees. What area can the lighthouse light? Round your answer to the nearest tenth.

Answers

Answer: 12

Step-by-step explanation:

Help me please please please please

Answers

pi is 3.15 so I think its pi time radius to get the area which is 3.15 times 9. that equals to 28.35

Help pleas I need help

Answers

Answer:

3.05

Step-by-step explanation:

Answer:

3 3/4 inches

Step-by-step explanation:

help, thank youu
A: 75
B: 61
C: 48
D: 80

Answers

Answer:

The answer is C, 48

Step-by-step explanation:

Its the only answer that makes sense

Answer:

75

Step-by-step explanation:

1. Eliminate wrong answers

a. (boys 5 & girls 4) meaning the boys should have a higher number than girls (which is 60) this meaning that 48 and 61 can not be the correct answer.

5/4=x/60

x=(5/4)*60

x=75

Math rocks

Leaving it to the obvious chose(The answer is 75)

Hope this helps

Solve for m:
M
_ - 23 = 109
6

Answers

Answer:

132

Step-by-step explanation:

I'm assuming the six is not supposed to be there so here's what I did:

M - 23 = 109                    - all you need to do is add 23 to both sides

M = 132                            - doing this cancels out the -23 on the left

2. There is still controversy about whether or not Pluto should be considered a planet. Although planets are
mainly defined by their orbital path (the condition that prevented Pluto from remaining a planet), the
issue of size is something to consider. The table below lists the planets, including Pluto, and their
approximate diameters in meters.
Planet
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Approximate Diameter (m)
4.88 x 106
1.21 x 107
1.28 x 107
6.79 X 106
1.43 x 108
1.2 x 108
5.12 x 107
4.96 x 107
2.3 x 106
DI
a.
Name the planets (including Pluto) in order from smallest to largest.

Answers

Rank on the side. Hope I did this right! Here you go ⭐

Please help! I will give brainlist!!

Answers

Answer:

31.5

Step-by-step explanation:

Assuming that the lowest point and the highest point on the Ferris wheel are opposite each other, the difference of height will be the distance between the two points, and thus, the distance across fo the Ferris wheel. Divide this value by (2) to find the radius of the strucutre.

75 - 12

= 63

63 / 2

= 31.5

Lin has a die with 6 sides, each labeled 1, 2, 3, 4, 5, and 6. What is the probability that she will roll a 3? *

Answers

Answer:

Probability of rolling number 3 = [tex]\frac{1}{6}[/tex]

Step-by-step explanation:

Lin has a die with 6 sides.

Each side of the die is labeled with 1, 2, 3, 4, 5 and 6.

Since, probability of rolling any number = [tex]\frac{\text{Favorable event}}{\text{Total number of events}}[/tex]

Therefore, probability of rolling number 3 = [tex]\frac{\text{Favorable event}}{\text{Total number of events}}[/tex]

Favorable event of getting 3 in single roll = 1

Total events that can happen in one roll = 6

Therefore, probability of rolling number 3 = [tex]\frac{1}{6}[/tex]

A graph of a system of two equations is shown. PLEASE HELPP!!!!!

Answers

Answer:

From the graph

[tex]x=1[/tex]

[tex]y=0[/tex]

--------------

hope it helps...

have a great day

Sarah went to a basketball game. She bought a ticket to the game and a bag of
popcorn spending a total of $15.00. Tyler went to a basketball game. He bought a
ticket to the game and 3 bags of popcorn spending a total of $30.00. How much is a
ticket to the game?
o $4.75
o $10.50
O $7.50
O $5.25

Answers

Answer:

10.5

Step-by-step explanation:

What is the slope of the line that is parallel to the line joining the points (7, -5) and (-5, 7)?

Answers

Answer:

The slope is -1.

Step-by-step explanation:

We want to find the slope of the line that is parallel to the line joining the points (7, -5) and (-5, 7).

First, we can use the slope formula to find the line passing through (7, -5) and (-5, 7). The slope formula is:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Substitute and evaluate:

[tex]\displaystyle m=\frac{(7)-(-5)}{(-5)-(7)}=\frac{12}{-12}=-1[/tex]

So, its slope is -1.

Recall that parallel lines have the same slope.

Therefore, the slope of the line that is parallel to the line joining the points (7, -5) and (-5, 7) will also be -1.

A garden at the local library is in the shape of a right triangle the dimensions of the garden are shown in the diagram. What is the area in the square feet Area of triangle = 1/2 bh

Answers

37.5 square feet

Area=1/2 b*h=1/2 * 7.5 * 10= 1/2 * 75 = 37.5

Sal buys y pens and some pencils. He buys 10 more pencils than pens. How many pens and pencils does he buy
altogether?

Answers

Answer:

20

Step-by-step explanation:


José and Wally install windows. Each day, José installs 5 more than 2 times as many windows
as Wally installs. If José installs 15 windows each day, which equation can be used to
determine the number of windows, w, that Wally installs?
A: 2w-5= 15
B: 2w +5= 15
C: 5w+2 = 15
D: 5w-2= 15

Answers

I think B not 100% sure though

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer and Step-by-step explanation:

To find the range, we must plug in the values 0 to 15 into the function to find the values of f(x), which are the range.

When plugging in the values, we see that the answer should be the last one.

We start with a pay of $15.50, and it increases each time by $10, until it reaches $165.50.

So, D is the answer.

#teamtrees #PAW (Plant And Water)

x=
A. 100
B. 50
C. 25​

Answers

Answer:

b=50 central angle equal to the arc


A survey of a random sample of juniors shows that 12% are not planning to attend homecoming, and 88%
are planning to attend. The survey has a margin of error of t8%. What is the range for the percentage of juniors who are
going to homecoming?
F 4% to 20%
G 4% to 12% H 80% to 96%
J. 4% to 96%

Answers

Answer:

i would guess

Step-by-step explanation:

GIVING BRANLIEST 5 STARS AND A LIKE PLS HELP IM SOOOOO STUCK

b) If the base of the panel is 31.2 inches and the height is 18 inches, what is the area of one triangular section?



What is the formula with these numbers plugged in? --

Answer --

Answers

Answer:

280.8 and the formula is Base x Height = ? x.5

Step-by-step explanation:

(31.2 x 18) x 0.5 =280.8

Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

For Every 1 dog there are 4 cats or 1:4

Hope this helps ヾ(•ω•`)o - Six

A CD manufacturer wanted to determine which of two different cover designs for a newly released CD will generate more sales. The manufacturer chose 70 stores to sell the CD. Thirty-five of these stores were randomly assigned to sell CDs with one of the cover designs and the other 35 were assigned to sell the CDs with the other cover design. The manufacturer recorded the number of CDs sold at each of the stores and found a significant difference between the mean number of CDs sold for the two cover designs. Which of the following gives the conclusion that should be made based on the results and provides the best explanation for the conclusion?
A. It is NOT reasonable to conclude that the difference in sales was caused by the different cover designs because this was not an experiment.
B. It is NOT reasonable to conclude that the difference in sales was caused the different cover designs because there was no control group for comparison.
C. It is NOT reasonable to conclude that the difference in sales was caused the different cover designs because the 70 stores were not randomly chosen.
D. It is reasonable to conclude that the difference in sales was caused by the different cover designs because the cover designs were randomly assigned to stores.
E. It is reasonable to conclude that the difference in sales was caused by the different cover designs because the sample size was large.

Answers

Answer:

The statement that gives the best conclusion that should be made based on the results and provides the best explanation for the conclusion is option D;

D. It is reasonable to conclude that the difference in sales was caused by the different cover designs because the cover designs were randomly assigned to stores

Step-by-step explanation:

The data given in the question are presented as follows;

The particulars the CD manufacturer wants to determine = The CD cover design that will generate more sales

The mode of selection of the stores for the test = Random selection

The number of stores in each group of stores, n = 35 stores

The number of sets of stores tested = 2 sets of stores

Let [tex]\overline x_1[/tex] represent the mean number CDs sold at one set of stores and [tex]\overline x_2[/tex] represent the mean number CDs sold at the other set of stores

The null hypothesis, H₀; [tex]\overline x_1[/tex] = [tex]\overline x_2[/tex]

The alternative hypothesis, H₀; [tex]\overline x_1[/tex] ≠ [tex]\overline x_2[/tex]

Given that the statistical analysis shows that the difference in mean between the two sets of randomly selected stores is significant, we therefore should reject the null hypothesis and accept the alternative hypothesis that there is a significant difference in CD sale attributable to the difference in cover design as the CDs having on of two cover design where assigned randomly to the stores.

On two investments totaling $6,500, Lydia lost 7% on one and earned 8% on the other. If her net annual receipts were $364, how much was each investment?

Answers

Answer:

$3,442.40

$3,057.60

Step-by-step explanation:

The computation of the each investment is as follows:

let us assume the one investment be x

And, the other investment be y

So

According to the question

x + y = $6,500

And,

-7x + 8y = $364

Now multiply by 7 in equation 1

7x +  7y = $45,500

-7x + 8y = $364

15y = $45,864

y = $3,057.60

x = $6,500 - $3,0657.60

= $3,442.40

need help with area for solving this

Answers

Answer:

Step-by-step explanation:

First find the area of total rectangle which equals 20 * 12 = 240

Second find the area of triangle which equals 0.5 * 4 * 6 = 12

The required area = total rectangle - triangle = 240 - 12 = 228

Answer:

NEEEEEGARRRRR

Step-by-step explanation:

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