Which properties could you use to solve the following expression?
3 + 7 + 2 + 5 + 9

A
commutative, distributive and associative

B
associative and commutative

C
distributive and associative

D
associative only

Answers

Answer 1

Answer:

associative only!!!!!!!!!!!!!


Related Questions

Find the volume of cone pictured below. Use 3.14 for /pi . Round your answer to the nearest hundredth.

Answers

Answer: 718.38

Step-by-step explanation:

An angle turns through 1/360 of a circle. what is the measure, in degrees, of the angle. I really need help with this please.​

Answers

Answer:

1 degree

Step-by-step explanation:

because a circle is 360 degrees

tanA+TanB=TanA+TanB÷1-TanA×TanB if A=30 andB=60​

Answers

Answer:

[tex]\tan (30 + 60) = unde f ined[/tex]

Step-by-step explanation:

Given

[tex]\tan (A + B) = \frac{\tan A + \tan B}{1 - \tan A * \tan B}[/tex] ---- right expression

[tex]A = 30^o; B = 60^o[/tex]

Required

Solve

[tex]\tan (A + B) = \frac{\tan A + \tan B}{1 - \tan A * \tan B}[/tex]

Substitute: [tex]A = 30^o; B = 60^o[/tex]

[tex]\tan (30 + 60) = \frac{\tan 30 + \tan 60}{1 - \tan 30 * \tan 60}[/tex]

In radical forms, we have:

[tex]\tan (30 + 60) = \frac{\sqrt 3/3 + \sqrt 3}{1 - \sqrt 3/3 * \sqrt 3}[/tex]

[tex]\tan (30 + 60) = \frac{\sqrt 3/3 + \sqrt 3}{1 - 1}[/tex]

[tex]\tan (30 + 60) = \frac{\sqrt 3/3 + \sqrt 3}{0}[/tex]

[tex]\tan (30 + 60) = unde f ined[/tex]

At a local basketball game, all tickets are the same price and all souvenirs are the same price. Mr. Smith bought 2 tickets to this basketball game and 1 souvenir for
a total of $17.25. Ms. Lockhart bought 5 tickets to the same game and 2 souvenirs
for a total of $42.00. How much was a ticket to this game?

Answers

Answer:

the answer will be 7.50

Step-by-step explanation:

Find the volume
Show work

Answers

Sir there seems to be a picture in your pixels.

i would assume the measurements (from left to right) is 34m 14m 20m and 14m

find the area of the triangle so split the 24 in half 12 and 12

then multiply 12*14 which is 168

i would assume the area is 168m^2

then multiply by 20m

3360m ^3

please helpp me with this assignment

Answers

5^3 = 125
2^-4 = 1/16
5^-2 = 1/25
2^5 = 32

Julie is solving the equation 3x2 + 5x + 15 = 0 and notices that the discriminant b2 - 4ac has a value of -155. This tells her that the
equation has

Answers

Answer: A

Step-by-step explanation:

15 points
pls help fast with all questions
thank you

Answers

Answer:

11a

[tex]3x\\ 4x\\ 10+2x\\ 12+2x[/tex]

11b

[tex]8\\ 6\\ 7\\ 6[/tex]

12

Anna is 18. Rita is 13.

13

Mark is 12.

Step-by-step explanation:

Recall that the perimeter of a shape is the sum (or total) of all the edges that make up that shape. So, for the first shape, there are three Xs. We write this as [tex]\bold{3x}[/tex] so this is the perimeter.

In the second, there are four Xs, so this is [tex]\bold{4x}[/tex].

In the third, there are two Xs and two 5s, so this is [tex]2x+(2*5)=\bold{10+2x}[/tex].

In the fourth, there are two Xs and three 4s, so this is [tex]2x+(3*4)=\bold{12+2x}[/tex].

If each is equal to 24, we can simply set them as equal to 24 and solve.

[tex]3x = 24\\\bold{x=8}[/tex]

----

[tex]4x=24\\ \bold{x=6}[/tex]

----

[tex]10+2x=24\\2x = 14\\\bold{x=7}[/tex]

----

[tex]12+2x=24\\2x=12\\\bold{x=6}[/tex]

If Anna is 5 years older than Rita, then [tex]a=r+5[/tex]. If their sum is 31, then [tex]a+r=31[/tex]. We can perform some substitution:

[tex](r+5)+r=31\\5+2r=31\\2r=26\\r=13[/tex]

Therefore, Rita is 13. Keep going:

[tex]a=r+5\\a=13+5\\a=18[/tex]

Anna is 18.

If Dad is three times as old as Mark, then [tex]d=3m[/tex]. If the sum of their ages is 48, then [tex]d+m=48[/tex]. We can perform some algebra:

[tex]d+m=48\\m=48-d\\d=3(48-d)\\d=144-3d\\4d=144\\d=36[/tex]

Dad is 36. Keep going:

[tex]d=3m\\36=3m\\m=12[/tex]

Mark is 12.

Now that you've seen these, you do the bonus ;)

Please help me I really need to finish this

Answers

Answer:

9

Step-by-step explanation:

18. the area for each side is 1in^2 and there are 6 sides. so the area of 1 cube is 6 in^2. 6*3=18

A manufacturer produces widgets that are packaged in boxes of 100. The probability of a widget being defective is 0.021. Find the mean and standard deviation for the number of defective widgets in a box.

Answers

Answer:

[tex]\=x=2.1[/tex]

[tex]\sigma=2.03[/tex]

Step-by-step explanation:

From the question we are told that:

Sample size[tex]n=100[/tex]

Probability of  a defective widget [tex]P=0.021[/tex]

Generally the equation for binomial trial is mathematically given by

 [tex]q=1-p[/tex]

 [tex]q=1-0.021[/tex]

 [tex]q=0.979[/tex]

Since X is binomial random variable with functions of n and p,The equation of mean \=x

 [tex]\=x=E(x)[/tex]

  Where

  [tex]E(x=n*p)[/tex]

 [tex]\=x=100*0.021[/tex]

 [tex]\=x=2.1[/tex]

Generally the equation for variance \sigma is mathematically given by

 [tex]\sigma=\sqrt{nqp}[/tex]

 [tex]\sigma=\sqrt{200*0.021*0.979}[/tex]

 [tex]\sigma=2.03[/tex]

 

Again, suppose you were to draw all possible samples of size 36 from a large population with a mean of 650 and a standard deviation of 24. You then compute the sample mean x-bar for each sample. From the long list of sample means, you create the sampling distribution of the sample mean, assigning probabilities to all possible values of x-bar. What value should you show at the center of the distribution

Answers

Answer:

Following are the solution to the given question:

Step-by-step explanation:

Please find the complete question in the attached file.

[tex]\bar{x}=650\\\\\sigma =24\\\\n=36\\\\[/tex]

Calculating the sampling distribution of the sample mean:

[tex]\to \mu=\mu_\bar{x}=650[/tex]

Calculating the sampling distribution of the standard deviation:

[tex]\to \sigma_\bar{x}=\frac{\sigma}{\sqrt{n}}=\frac{24}{\sqrt{36}}=\frac{24}{6}=4[/tex]


Math problem 16.

Find the value of x, y and z.

Answers

Answer:

sqrt. 244

Step-by-step explanation:

a^2 + b^2 =c^2

10^2 + 12^2 =244

c^2 =244

c= sqrt. 244

Answer:

if x+y equal 90

and z equal 2 sqrt 61

if you want the real values of the x and y iam not sure but you have to use ratios and proportions Formula for example 24k=90

k =15/4

y=10k

x=12k

like this hopefully its helpful

Scores for a common standardized college aptitude test are normally distributed with a mean of 496 and a standard deviation of 110. Randomly selected men are given a Test Preparation Course before taking this test. Assume, for sake of argument, that the preparation course has no effect. If 1 of the men is randomly selected, find the probability that his score is at least 545.7. P(X > 545.7)

Answers

Answer:

0.3257

Step-by-step explanation:

Given an approximately normal distribution:

Z = (x - mean) / standard deviation

Mean = 496 ; Standard deviation = 110

For :

P(x > 545.7)

We obtain the standardized, Z score

Z = (545.7 - 496) / 110

Z = 49.7 / 110

Z = 0.4518

Hence, using the Z distribution table :

P(Z > 0.4518) = 1 - P(Z < 0.4518)

P(Z > 0.4518) = 1 - 0.67429

P(Z > 0.4518) = 0.32571

A baby giraffe eats 75 pounds of leaves a day. How many pounds of leaves does a baby giraffe eat in 31 days? explain your reasoning

Answers

so basically the answer is

Answer:

2325

Step-by-step explanation:

you multiple 31 by 75 it becomes 2325

23) A recipe for cupcakes calls for 6 cups of
sugar. Shreya has already put in 3 cups.
How many more cups does she need to put
in?

Answers

Answer:

Shreya must put in 3 more cups of sugar.

Step-by-step explanation:

Given that a recipe for cupcakes calls for 6 cups of sugar, and Shreya has already put in 3 cups, to determine how many more cups does she need to put in to complete the amount required by the recipe, the following calculation must be performed:

6 - 3 = X

3 = X

Therefore, Shreya must put in 3 more cups of sugar.

16x ___=192 i need help ill give brainiest to person n who gets it right

Answers

Answer:

12

Step-by-step explanation:

16 x 12 = 192

32 is you correct answer! 16 times 32=192

The aiden middle school girls soccer team won 80 percent of its games this season. If the team won 12 games how many games did it play?

Answers

Answer:

15 games

Step-by-step explanation:

0.8 is 80% in a fraction form (80/100), g is the number of games played and 12 is the games won.

Function Composition:
Let the function [tex]f(x)= 3+6x[/tex] , determine:

Answers

Answer:

Given

f(x) = 3 + 6x

A

Find the inverse of f(x):

x = 3 + 6f⁻¹(x)6f⁻¹(x) = x - 3f⁻¹(x) = (x - 3) / 6

B

f · f⁻¹( ∛5/6) = f( f⁻¹( ∛5/6)) = f((∛5/6 - 3)/6) = 3 + 6((∛5/6 - 3)/6) =3 + ∛5/6 - 3 =∛5/6

C

f · f⁻¹(x) = f(f⁻¹(x)) = f((x - 3)/6) = 3 + 6(x - 3)/6 = 3 + x - 3 = x

Suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000. Use the 68-95-99 7 rule to find the percentage of buyers who paid between $150,000 and $154,400, if the standard deviation is
52 200
A. 99.7%
B. 475%
C. 34%
D. 68%

Answers

Answer:

The answer is d

Step-by-step explanation:

Brainliest pls

HELPPP
If YV = 28 in, find the length of VYX.

Answers

Answer:

B) 68.91 inches

Step-by-step explanation:

To start, lets define what we are trying to find. VYX is the major arc VX, spanning from V to X crossing over Y.

We are also given that the diameter is 28 inches.

Since arc length and area are proportional to the central angle, we can create the following equality:

angle of VYX/360 = arc length of VYX/circumference

We know that the central angle of VYX = central angle of minor UV + UYX = 117 + (180-15) = 282 degrees.

282/360 * 28*pi = arc length of VYX

Thus, the length of VYX = 68.90559887 inches

Thus, the correct answer is B, 68.91 in.

Plz help will mark as brainleist

Answers

Answer: B

Step-by-step explanation:

First, simplify the main expression. The answer is 21.

Then simplify A. It is -106. That is not equal to 21 so A is wrong.

Then simplify B. That is 21. That means B is correct and you don’t have to solve C or D.

Bryce, a top landscape architect, was given a special garden design job. The client owned a property as shown below, in which he wanted to have four separate small gardens, each of them exactly the same size and shape. In other words, “congruent.” Remember, all four gardens must fit exactly within the shape of the property as shown below; you can’t change the dimensions of the property or move things around - you have to keep your design within the original shape. Bryce came up with an ingenious design that fit the client’s request exactly. Can you figure out what his design was?

Answers

.........................................

Helpppppppppppppp plsssss

Answers

7 hours I’m pretty sure, since he makes 10 dollars per hour, ($40 for 4 hours) Just add 3 to that and you’ll get 7 hours, hope this helps!

If n 9 = 72 , which equation is true?

Answers

Answer:

bestieeee wheres the equationsss

Step-by-step explanation:

what is the reciprocal of 3/2?

please text it and not upload a pic thank you

Answers

2/3. the reciprocal is the fraction flipped.

Help me and I’ll give you Brainliest and if u don’t know don’t answer

Answers

1 4 7 I think
I don’t know for sure though




Answer:

2 in. × 25 in. [Choice 2]5 in. × 10 in. [Choice 4]1 in. × 50 in. [Choice 6]

can someone do these questions 1-3 please i have an F in math now :/

Answers

Answer:

There is no picture.

Step-by-step explanation:

Answer:

I can helpppppp

Step-by-step explanation:

what is a surface area of a juice box that is 4 inches high 3 inches long 2 inches wide​

Answers

Answer:

24inch^3

Step-by-step explanation:

i hope this helps

Cooper invested $3,100 in an account paying an interest rate of 2%
compounded quarterly. Robert invested $3,100 in an account paying an
interest rate of 3 % compounded continuously.After 12 years, how much
more money would Robert have in his account than Cooper, to the nearest
dollar?

Answers

Answer:

Rounded to the nearest dollar, Robert will have $ 505 more than Cooper on his account.

Step-by-step explanation:

Given that Cooper invested $ 3,100 in an account paying an interest rate of 2% compounded quarterly, while Robert invested $ 3,100 in an account paying an interest rate of 3% compounded continuously, to determine, after 12 years, how much more money would Robert have in his account than Cooper to the nearest dollar, the following calculation must be made:

Compound interest formula: Initial x (1 + interest / composition) ^ composition x years

Continuous compound interest formula: Initial x exp ^ (interest x years)

Cooper:

3,100 x (1 + 0.02 / 4) ^ 12x4 = X

3,100 x (1 + 0.005) ^ 48 = X

3,100 x 1,005 ^ 48 = X

3,100 x 1,270 = X

3,938.51 = X

Robert:

3,100 x 2.71828182845904 ^ (3x12) = X

4,443.32 = X

4,443.32 - 3,938.51 = X

504.51 = X

Therefore, rounded to the nearest dollar, Robert will have $ 505 more than Cooper on his account.

Answer:

$139

Step-by-step explanation:

A local pizza shop has a membership program for frequent buyers. The membership costs $5 per month and members get a discounted price of $2 per slice of pizza. Aisha purchased a membership to this pizza shop. How much would Aisha have to pay the pizza shop if she bought 8 slices of pizza this month? What would be the monthly cost for
x slices of pizza?

Answers

Answer:

Aisha would pay 21 dollars for 8 slices.

Equation 2x(x=number of slices)+5

Step-by-step explanation:

Other Questions
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