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
yaroslaw [1]
3 years ago
6

-18 + 2a = 2(3a + 1)

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
3 0

Answer:

a = -5

Step-by-step explanation:

Given

-18 + 2a = 2(3a + 1)

Expand the bracket on the right

-18 + 2a = 2 x 3a + 2 x 1

-18 + 2a = 6a + 2

Add 18 to both sides

-18 + 18 + 2a = 6a + 2 + 18

2a = 6a + 20

Subtract 6a from both sides

2a - 6a = 6a - 6a + 20

-4a = 20

Divide both sides by -4

-4a/-4 = 20/-4

a = -5

You might be interested in
he function a = –2x2 + 8x + 5 models the altitude a in feet of a ball thrown in the air and the horizontal distance in feet that
frozen [14]

Answer:

for part b the vertex is (2, 13)

Step-by-step explanation:

no (ice)

7 0
3 years ago
77. Find the greatest common factor (GCF) of the polynomial: 12x^4 + 8x^3 - 16x^2
Fed [463]

Answer:

4x^2

Step-by-step explanation:

The greatest common factor of 12, 8, and 16 can be no larger than the smallest difference between these numbers, which is 4. 4 is a factor of each number, so is the GCF of them.

The exponent of the greatest common factor of x^4, x^3, and x^2 can be no larger than the smallest of these exponents, which is 2. So, the GCF of the variable portion of the terms is x^2.

The product of the coefficient GCF and the variable GCF is ...

... 4x^2

5 0
3 years ago
What is the product of −2 2/5 and −3 5/6
Yakvenalex [24]
276/5 is the answer after multiplying the two
3 0
4 years ago
Write an expression for 5 times a number
Dovator [93]
25 is 5 times as 5 so here is the answer
6 0
3 years ago
You roll two (six sided number cubes. what is the probability of getting a sum equal to 4? use a table to find your answer.
bazaltina [42]
Total outcomes = 6*6 = 36
favourable outcomes = (1,3), (2,2), (3,1)

Probability = 3/36 = 1/12

Hope it helps!
6 0
3 years ago
Other questions:
  • Which is a property of an angle?
    10·2 answers
  • Please help to be marked brainliest number is 13
    12·2 answers
  • If (fx)=5x, what is f^-1(x)
    9·1 answer
  • What’s the anwsers and how do u work it out ?
    11·1 answer
  • Can someone help me solve. I'm not sure if I did it right.
    5·1 answer
  • What is the area of the parallelogram below?<br> A. 7 in<br> B. 14 in<br> C. 15 in<br> D. 12 in
    7·1 answer
  • Which is smaller-21/35, 7/5​
    10·2 answers
  • Tamara has decided to start saving for spending money for her first year of college. Her money is currently in a large suitcase
    10·2 answers
  • Pl hell it’s for homework
    11·1 answer
  • Evaluate the expression 43 + 2(3 − 2).
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!