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
pentagon [3]
3 years ago
6

Combine the like terms to create an equivalent expression:2r+1+(−4r)+7

Mathematics
1 answer:
STatiana [176]3 years ago
3 0

Answer:

2r+1+(-4r)+7

= -2r+8

= -2(r+4)

Step-by-step explanation:

You might be interested in
Please answer my question!
Salsk061 [2.6K]

D is not a terminating decimal because it repeats *hint the dash mark above the 4*

6 0
3 years ago
What is the surface area of 5, 8, and 3
Rashid [163]

Answer:

158

Step-by-step explanation:

5*8=40

8*3=24

3*5=15

Each of these measurements gets added twice, becasue there are 6 faces on a rectangular prism.

40 + 40 + 24 + 24 + 15 + 15 = 158

5 0
3 years ago
Read 2 more answers
Which algebraic expression is represented by the model?
DerKrebs [107]

Answer:

3(2x+2) = 6x + 6

Step-by-step explanation:

Those are algebra tiles, so it is saying (if you read across the top) 2x +2 then if you read down you have 3 units, so the dot means 2x + 2 multiplied by 3

If you write it in algebraic terms it is 3(2x+2) so the answer when you distribute is 3 (2x) + 3(2) so 6x + 6, and if you count the number of red rectangles you have 6 of them, hence the 6x, and if you cound the units in gray you have 6 of them, hence the 6.

Algebra tiles are used to demonstrate algebra concepts

6 0
3 years ago
An aquarium measures 11 feet wide, 10 feet long and 7 feet deep. Approximately how many gallons of water does it hold if there a
FinnZ [79.3K]

Answer:

770 gallons

Step-by-step explanation:

8 0
3 years ago
Find the slope of a line that passes through (-2,1) and (4,9)
melamori03 [73]

Answer:

m = 4/3

Step-by-step explanation:

To find the slope of a line use the formula, where "m" means slope:

m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }

*You don't need to show this part on paper*

Choose which point you want to be point 1 and point 2. Remember the points are written (x, y).

Point 1: (-2, 1)       x₁ = -2  y₁ = 1

Point 2: (4, 9)      x₂ = 4   y₂ = 9

Substitute the coordinates into the formula:

*Show this part on paper*

m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }

m=\frac{9-1 }{4-(-2) }         Simplify

m=\frac{8 }{6 }                Reduce by dividing by 2

m=\frac{4 }{3 }               Slope

The slope of the line is 4/3

8 0
3 years ago
Other questions:
  • Write one pair of brackets in this calculation so that the answer is correct. 5 + 2 × 7 – 4 = 11
    12·1 answer
  • How do u do this problem 1/2x-1/4y=10 1/8x-1/8y=19?
    10·1 answer
  • How to find amplitude of a trig function?
    11·1 answer
  • Is 8.17539... irrational or rational?
    9·1 answer
  • A computer company uses the function f(h) = 50h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Fin
    6·1 answer
  • If a 12-meter-tall airplane hangar casts a 18-meter shadow at the same time a parked jet casts a 6-meter shadow , how tall is th
    13·1 answer
  • Find the standard form of the equation of the parabola with a focus at (-2, 0) and a directrix at x = 2.
    6·1 answer
  • Find the sum of interior angles of a 10-sided figure. Explain what formula you used to get the answer.
    7·1 answer
  • Please please please help me asap! I need to get this done!!!
    11·2 answers
  • Plant a starts from 2 incher and grows at a constsnt rate of 3 inches every 4 week
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!