1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marina86 [1]
3 years ago
5

Use the Distributive Property to write each expression as an equivalent algebraic expression. (7 + a)3 Question 4 options: 3(7a)

21 + 3a 10 + 3a 7 + 3a
Mathematics
1 answer:
AysviL [449]3 years ago
5 0

Answer:

(B)21+3a

Step-by-step explanation:

An expression is said to be distributive when:

(a+b)c=a \cdot c+b \cdot c

Given the algebraic expression: (7 + a)3

Applying the distributive property

(7 + a)3 = 7 \cdot 3+a \cdot 3\\=21+3a

An equivalent expression is 21+3a.

The correct option is B

You might be interested in
Trong mặt phẳng tọa độ cho tam giác ABC biết các đỉnh A(-1,2), B(4,7) và trọng tâm tam giác G(3,2). Viết phương trinh đường thẳn
ExtremeBDS [4]
Can you translate so i can help you out .
8 0
3 years ago
If a truck averages 12 miles to the gallon, how many pounds of carbon dioxide are emitted into the atmosphere when the truck tra
77julia77 [94]

Answer: 278.30 pounds (if the gasoline does not contain ethanol)

317.12 pounds (if the gasoline does contain ethanol)

Step-by-step explanation:

If the truck averages 12 miles per gallon, then in 170 miles it consumes:

170mi/12mi = 14.17 gallons.

We know that for one gallon consumed, the carbon dioxide emitted into the atmosphere is 19.64 pounds. (assuming it does not contain ethanol)

Then for 14.17 gallons consumed, we have a emission of:

14.17*19.64 pounds = 278.30 pounds

I the gasoline contains ethanlol, for a gallon the emiision is around  22.38 pounds.

In this case the total emission is:

14.17*22.38 pounds = 317.12 pounds

3 0
3 years ago
Your gross income is<br> $1945.63 of which you<br> get to keep 86% after<br> taxes.
netineya [11]

Answer: You get to keep 1,673.24

You pay 272.38 in taxes.

8 0
3 years ago
In winter, the price of apples suddenly went up by$0.75 per pound. Sam bought 3 pounds of apples at the new price for a total of
White raven [17]

From the information given, the original price per pound was increased by $ 0.75
Let the original price be x, so the new price is x + 0.75

Sam bought 3 pounds of apples at new price and it cost him 5.88

so we form an equation:

3 (x + 0.75) = 5.88

3x + 2.25 = 5.88

3x = 5.88 - 2.25

3x = 3.63

x = 3.63 / 3

x = 1.21

Therefore the original price per pound is 1.21 dollars


4 0
3 years ago
Read 2 more answers
A biologist is comparing the growth of a population of flies per week to the number of flies a bullfrog will consume per week. S
Lubov Fominskaja [6]

Realize that since 2x and 3x - 1 are equal to each other, they are also equal to y. This means that we can craft two equations, y = 2x and y = 3x - 1.


When you want to solve a systems of equations via a graph, you need to plot both equations on a graph and determine the x- and y-value of where the lines intersect. In this case, we would plot both y = 2x and y = 3x - 1. These lines intersect at the point (1, 2).


Since we are trying to find the day the bullfrog will be able to eat the entire population, or x, we are going to use the x-value of our point as our answer. Thus, our answer is 1 day.

3 0
3 years ago
Other questions:
  • A stack of 9 bricks weighs 27 kilograms. how many grams does each brick weigh?
    5·2 answers
  • What is the common ratio of the following sequence?<br>80, 20,5<br><br>A. -4<br>B. 1/4<br>C. 4​
    8·1 answer
  • Tyrone ran 7 laps on he quarter mile track during practice. Which subset of real numbers would include the distance Tyrone ran a
    9·1 answer
  • What is the simplified expression for 2 power 2 multiplied by 2 power 3 over 2 power 4?
    7·2 answers
  • Over summer, Jackie played video games 3 hours per day. When school begin in the fall, she was only allowed to play video games
    13·1 answer
  • Help me please!!!!! I just need this 1 answer!
    11·1 answer
  • How to Solve S=2(pi)rh for pi
    11·1 answer
  • It takes 4 people 6 days to paint a wall. How many days would it take 12 people
    5·1 answer
  • In a DC circuit, the product of volts times the amperes is called?
    15·2 answers
  • 1. Function or Not?<br><br> Function<br> Not
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!