All categories

2 years ago

Simplify the following expressions by combining like terms. Then, tell if the expressions are equivalent.

Mathematics

1 answer:

dezoksy [38]2 years ago

6 0

Answer:

2+4r. Expressions are equivalent.

Step-by-step explanation:

3r + 10 + r -8

Multiply r and 3

Multiply r and 1

The r just gets copied along.

The answer is r

r

3*r evaluates to 3r

3*r+10 evaluates to 3r+10

3r + r = 4r

The answer is 4r+10

3*r+10+r evaluates to 4r+10

10 - 8 = 2

The answer is 2+4r

3*r+10+r-8 evaluates to 2+4r

The final answer is

2+4r

8 + 2(2r) - 6

Multiply r and 2

Multiply r and 1

The r just gets copied along.

The answer is r

r

2*r evaluates to 2r

Multiply 2 and 2r

Multiply 1 and r

The r just gets copied along.

r

2*(2*r) evaluates to 4r

8+2*(2*r) evaluates to 8+4r

8 - 6 = 2

The answer is 2+4r

8+2*(2*r)-6 evaluates to 2+4r

The final answer is

2+4r

You might be interested in

How often is simple interest used in the business and banking worlds?

Alchen [17]

On't want to be ripped off do you?/ That's why you want to have some interest. Just in a simple form this is a rush job right now.

6 0

3 years ago

A porch has the shape of a quarter circle with a diameter of 5 ft. What is the approximate area of the porch, rounded to the nea

GalinKa [24]

Area=pi times radiius^2
radius=diameter/2
diamter=5
radius=5/2=2.5
pi=3.14 aprox
area=3.14 times 2.5^2
area=3.14 times 6.25
area=19.625 ft^2

round
19.6 round up
20
the answer is 20 ft^2

5 0

3 years ago

If AJKL = ARST, which congruences are true by CPCTC? Check all that apply.

evablogger [386]

Based on the CPCTC theorem, the congruences that are true about the given triangles are:

B. ∠K ≅ ∠S

C. KL ≅ ST

D. JK ≅ RS

<h3>What is the CPCTC Theorem?</h3>

According to the CPCTC theorem states that if two triangles are congruent to each other, then, all their corresponding parts will be congruent to each other.

Given that triangles JKL and RST are congruent to each other, therefore:

∠J ≅ ∠R

∠K ≅ ∠S

∠L ≅ ∠T

JK ≅ RS

KL ≅ ST

JL ≅ RT

Therefore, the congruences that would be true by CPCTC are:

B. ∠K ≅ ∠S

C. KL ≅ ST

D. JK ≅ RS

Learn more about the CPCTC theorem on:

brainly.com/question/14706064

#SPJ1

5 0

2 years ago

Find the exact length of the third side?

notka56 [123]

Answer:

57 for the third side

Step-by-step explanation:

a = √(c² - b²)

3 0

2 years ago

A 14-ounce bottle of Nesquik chocolate milk cost $1.89. What is the cost per ounce?

CaHeK987 [17]

Answer:

Step-by-step explanation:

1.89/14= .135

estimating to the nearest cent would be .14

8 0

2 years ago

Read 2 more answers