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
dusya [7]
3 years ago
5

Which expression are equivalent to 2r+(t+r)

Mathematics
1 answer:
umka21 [38]3 years ago
3 0
Simplified, it is 3r+t.
You might be interested in
6x^3-9x+3 in polynomial form
vfiekz [6]
Thats in polynomial form already in that order!
HOPE THIS HELPS!!
FEEL FREE TO FOLLOW ME IF YOU NEED ANYMORE HELP IN THE FUTURE
3 0
3 years ago
A right triangular prism is shown. Find (A) the total surface area and (B) the volume. You must show formulas and your work.
enyata [817]
Hello!

We are going to use the rectangular prism of the image as a guide:

First of all, the AC segment is calculated using the Pythagoras' theorem:

AC= \sqrt{ AB^{2}+ BC^{2} } =\sqrt{ 10^{2}+ 8^{2} }=12,81 m

(A) The surface area of a prism is the sum of the surface areas of each face. 

For the 2 triangles  ABC and DEF

A=2*(1/2*b*h)=2*(1/2*8m*10m)=80m

For the ABEF Rectangle

A=w*l=10,77m*10m=107,7m^{2}

For the ACDE Rectangle

A=w*l=10,77m*12,81m=137,96 m^{2}

For the BCDF Rectangle 

A=w*l=10,77m*8m=86,16 m^{2}

To finish you need to sum up the areas of each face:

SA=2A_{ABC}+ A_{ABEF}+A_{ACDE}+A_{BCDF}= \\ 80 m^{2} +107,7m^{2} +137,96m^{2} +86,16m^{2} =411,82m^{2}

(B) The volume of a prism is the product of the area of its base and the height of the prism. In this case, the base is a triangle so the formula and the calculations for the volume are as follows

V= \frac{1}{2} *w*h*l= \frac{1}{2}* 8m*10m*10,77m=430,8m^{3}

7 0
3 years ago
How to price estimate flooring installation?
WINSTONCH [101]
If you were to find the price estimate flooring for a room, you would first find the square measurements of the room. This means you need to fine the area of the room in feet. For example, you have a perfect square room with two sides that equal 15 ft. You multiply those two sides so the estimate square footage of the room is 300 square feet.

Depending on the price of the flooring you want, you then multiply the cost of the flooring by 300 square feet to get a estimated price.

I hope this helps!
3 0
3 years ago
The underlying rock ledge of Canada's horseshoe falls is cut back about 2 feet each year by erosion. Calculate how much the rock
SCORPION-xisa [38]
Hi There!

So the rock edge is cut back 2 feet each year by erosion and we have to figure out how much it will be cut back by 7 years using this knowledge so.

2 feet each year

2 + 2 + 2 + 2 + 2 + 2 + 2

or

7 x 2

=

14 so:

The Rock Ledge will have eroded 14 feet at the end of 7 years
4 0
3 years ago
Read 2 more answers
Express as a trinomial. .
AleksAgata [21]

Answer:

6x^2-17x-14

Step-by-step explanation:

See the steps below:)

7 0
3 years ago
Other questions:
  • *URGENT*TEST TOMORROW*
    6·2 answers
  • How do you do this, how do you get the percentages to come
    5·1 answer
  • Discuss how surface area and volume play a role in marketing products, such as advantages and disadvantages. Give specific examp
    13·1 answer
  • How much of 10% HCl and 35% HCl would be needed to mix and produce 60 liters of 25% HCl?
    10·2 answers
  • Standard deduction on federal income tax return for single taxpayers is $5700. Dean, an unmarried college professor, paid $4310
    13·2 answers
  • What is the to m(3 +m)
    5·2 answers
  • Alaina has 7 in her bank account and earns 6 each day . joel has 48 in his banck account and earn 8 earch day in how many days w
    6·1 answer
  • Hailey made the following statement
    14·1 answer
  • A number n increased by 4 is -19
    12·2 answers
  • What is the largest integer that is below square root of 28?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!