Mathematics High School

Which property is not used to simplify the following expression?
2 . (x + 5) + 7x = (2x + 10) + 7x
= (10 + 2x) + 7x
= 10 + (2x + 7x)
= 10 + 9x
= 9x + 10
a. commutative property of addition
b. associative property of addition
c. commutative property of multiplication
d. distributive property ​

Answers

Answer 1

Answer:

c

Step-by-step explanation:

we did not use the commutative property of multiplication because it states that (a*b)*c is the same as a*(b*c). but there was no part that used this property

Related Questions

What Quadrant is the solution to the system of equations located in?


Quadrant I
Quadrant II
Quadrant III
Quadrant IV

Answers

Answer:

Quadrant IV

Step-by-step explanation:

Think of it like the letter C across the coordinate plane.

As you start from the top you start with the first quadrant.

Hi please help solve this question​

Answers

Answer:

12 will be the answer I think so

If the bones cost 1.65 how much would could he buy with 15 dollars

Answers

Answer:

9

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

need help 25 pnts asap

Answers

Answer:

5000

Step-by-step explanation:

312.5 = .25 x .25 x p so .25 times .25 is .0625, divide 312.5 by .0625 and its 5000

Find the Number:
The tens digit is two less than the ones digit and sum of the digits is 8

Answers

Answer:

35

Step-by-step explanation:

so a list of 2 numbers that add up to 8 would be:

7+1

6+2

5+3 <- this one obviously works, so there's your answer

4+4

...

If the function f (x) is defined by f (x) x/2 - 6 then which of the following is the value of f (10)?
a.) -1
b.) 2
c.) 14
d.) 7

Answers

Answer:

nm

Step-by-step explanatit:

tampocom eauercdo

Jamie spent ₱120 for an outfit. She paid for the items using ₱10, ₱5, ₱1 bills. If she gave the clerk 19 coins in all, how many of each coin did she used?

Answers

3 coins did she used

12.
Write an equation for the line that is parallel to the given line and that passes through the given point.

y = 3/4x – 9; (–8, –18)
A. y = 4/3x – 12
B. y = -4/3x + 12
C. y = 3/4x – 12
D. y = 3/4x + 11/2

Answers

Answer:

C. y = 3/4x – 12

Step-by-step explanation:

y = 3/4x + b

-18 = 3/4(-8) + b

-18 = -6 + b

-12 = b

Zeros of f(x)=2x^3+7x^2+2x-3

Answers

X = 1, 1/2, -3
The roots(zeros) are the x values where the graph intersects to the x-axis. To find zeros, replace y with 0 and solve for x

Solve for X show your work

Answers

Answer:

Step-by-step explanation:

Using the side proportionality rule of triangles, we can see that the side with length 6 has a [tex]\frac{2}{3}[/tex] ratio to the side with length 9. We can use the same principle to determine that the side length of 2 is two thirds to side length x. We can set up an algebraic equation to find the value of x: [tex]\frac{2}{3} x=2[/tex]. If we multiply both sides by 3, we get [tex]2x=6[/tex], therefore x = 3

what is the value of s?

Answers

Solution:Here, in triangles UVW and UWX,Angle V = Angle X [given]Angle VWU = Angle XWU [given]UW = UW [common]So, triangle UVW is congruent to triangle UWX.By c.p.c.t., VU = XUGiven, VU = s+16, XU = 3sTherefore, VU = XU

or, s + 16 = 3s

or, 16 = 3s - s

or, 2s = 16

or, s = 8

Answer:

The value of s is 8.

Hope it helps.

Do comment if you have any query.

Select the factored form of the expressions 3x2−11x−4

A (3x−4)(x+1)

B (3x−2)(x+2)

C (3x+1)(x−4)

D (3x−1)(x+4)

NO LINKS

Answers

The answer is B that is why I know

Using complete sentences, explain how to find the quotient of 8 2\3 ÷ 1 \35. Make sure to include the quotient in your answer

Answers

Answer:

910/3

Step-by-step explanation:

first 8 2/3 is 26/3

26/3×35/1=910/3 is 303.333333

I already figured out one i think need help ASAP!!!!

Answers

Answer:

Need help with what?

Step-by-step explanation:

Please help me with this.

Answers

Answer:

  (i) $1528.80

  (ii) $2402.40

  (iii) $41.39/h; 13.7% increase

Step-by-step explanation:

(i)

The weekly wage is found by multiplying hours by the number of dollars for each hour:

  weekly wage = (42 h)($36.40/h) = $1528.80

__

(ii)

58 hours of work represents a straight week and 58 -42 = 16 hours of overtime. The overtime rate is 1.5×$36.40 = $54.60 per hour. Then the overtime pay is ...

  (16 h)($54.60/h) = $873.60

The technician's total wage for 58 hours of work is ...

  total wage = straight pay + overtime pay

  = $1528.80 +873.60

  total wage = $2402.40

__

(iii)

The hourly rate is found by dividing the pay by the corresponding number of hours.

  rate = $1490/(36 h) ≈ $41.39 /h . . . . . . . actually 41.38 8/9 per hour

The percentage increase is ...

  ((new amount) -(original amount))/(original amount) × 100%

  = (4.98888...)/36.40 × 100% ≈ 13.7% . . . increase

_____

Additional comment

You may notice that the base weekly wage went down by $38.80 due to the reduced hours.

A bank is offering 2.5%
simple interest on a
savings account. If you
deposit $5000, how
much interest will you
earn in one year?

Answers

Answer:

5000× 2.5 = 12500

12500÷100 = 125

Answer $125

5x+1=3x-3 solve for x

Answers

Answer:

x = -2

Step-by-step explanation:

5x + 1 = 3x - 3

=> 5x - 3x = -1 - 3

=> 2x = -4

=> x = -2

Hoped this helped.

The ratio of two numbers is 5:3. If their difference is 48 what are the numbers

Answers

like wak number just number your qustion im sorry

What equation represents the relationship between X and Y shown in the table below

Answers

Answer:

f(x)=3(-13)^x

Step-by-step explanation:

we know that when x=0 the y=3 why the reason is because

f(x)=3(-13)^0 any number to the power zero is 1 so the answer is f(x)=3(-13)^x

The markup on appliances at Tom’s store is 50%. If the wholesale price of a dishwasher is $380, what price will Tom list when selling the dishwasher?

Answers

Answer:

The answer is 570

Step-by-step explanation:

If it is being marked up, you would add 50% to 100% and thats 1.5

Then you multply 1.5*380 and that equals 570

I hope this answer Helps!

Answer: 570

Step-by-step explanation:

380x0.50=190

190+380=570

(2・3)² + 5² = ??????????????????????????????????????????????

Answers

Answer:

61

Step-by-step explanation:

Given the exponential expression, (2・3)² + 5²:

Start by multiplying 2 and 3 inside the parenthesis, before performing other mathematical operations.

(2・3)² + 5² = (6)² + 5²

Next, perform the exponential operations for (6)² and 5², then add their squared values together:

= 36 + 25  = 61

Answer:

61

Step-by-step explanation:

The value of x is 6, what is the value of y?
What is the scale factor? Explain your reasoning:¾=0.75

Answers

To find y value we are multiplying x value with 3/4, so the scaling factor is 3/4

Which point is in the graphed solution set of this system o
4x - 3y 12
6x + 3y > 5

Answers

Answer:

i dont know

For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 20 N acts on a certain object, the acceleration
of the object is 4 ms. If the force is changed to 15 N, what will be the acceleration of the object?

Answers

Answer:

bahihirapan na ako sa module

Step-by-step explanation:

na yan

if a*b=a^3 -3b,what is the value of -2*3​

Answers

Answer:

-17

Step-by-step explanation:

a*b=a^3 - 3b

let's take a = (-2) and b = 3

then

(-2)*3 = (-2)^3 - 3×3

= -8 -9

= (-17)

Scroll down to see image

Answers

Answer:

Step-by-step explanation:

in the attachment

Mason skated 21 miles in 2.5 hours. Bianca skated 22.5 miles in 3 hours.
Skating Problem
Use the drop-down menus to correctly complete these statements.
Mason skated at a speed of miles per hour.
Bianca skated at a speed of miles per hour.
skated faster.

Answers

Answer:

Mason skated at a speed of 8.4 miles per hour

Bianca skated at a speed of 7.5 miles per hour

Mason skated faster

Step-by-step explanation:

Hope this helps bro :)

Answer: mason skated at a speed of 8.4 miles per hour

Bianca skated at a speed of 7.5 miles per hour

mason skated faster

Step-by-step explanation:

I just did it and got it right

Pls mrk me as brainliest need award

Simplify the expression:
-6(1.4 - r)=

Answers

Answer:

[tex]6r-8.4[/tex]

Step-by-step explanation:

[tex]-6(1.4-r)[/tex]

Use the distibutivve property to multiply -6 by 1.4 - r

[tex]-8.4 +6r[/tex]

Then move over 6r to the front

[tex]6r-8.4[/tex]

you have to distribute the -6 to everything in the parentheses, so -6*1.4 is -8.4 and then -6* -r is 6r and then you’re supposed to add -8.4 to 6r but you can’t because of the variable to the answer is -8.4+6r

im fifth grade , lance grew 2 3/10 , and in sixth grade he gre 345 cm . what was tje total height increased durimg these 2 years. write answer as a proper mixed number and should be simpilified if possible.​

Answers

Answer:

= 5 3/4

Step-by-step explanation:

2 3/10 + 3 45/100

3/10 + 45/100 = 75/100

2+3= 5

Therefore, 5 75/100

In simplify, 5 3/4

= 5 3/4

what is the distributive property of 16-60+24

Answers

Answer:

4(4-15+6)

Step-by-step explanation:

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