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
aalyn [17]
3 years ago
8

DO IT ASAP! Thank you very much!

Mathematics
1 answer:
frozen [14]3 years ago
3 0

Answer:

a = 5

Step-by-step explanation:

According to the factor theorem, if x + 2 is a factor, then by dividing the polynomial by the binomial, we are meant not to have a remainder

In this case, the remainder would be zero

So, if we set the binomial equals zero and substitute the x-value into the polynomial, we are supposed to have 0

So we have this as;

x + 2 = 0

x = -2

-2^3 -2(-2)^2 -2(a) + 6 = 0

-8-8-2a + 6 = 0

-16 + 2a + 6 = 0

2a -10 = 0

2a = 10

a = 10/2

a = 5

You might be interested in
3. A penny is made by combining 0.1 g of a copper alloy that costs $5.50 per kilogram (1000 grams) with
lbvjy [14]
.0001*5.5 + 1.5*x = 2
x=1.33 kg
6 0
3 years ago
Select all the roots of the following equation.
strojnjashka [21]

Answer:

5, -9

Step-by-step explanation:

(x - 5)(x + 9) = 0    These are factors, to get the roots, just set each one equal to zero

x - 5 = 0

x = 5

x + 9 = 0

x = -9

6 0
3 years ago
Read 2 more answers
Which number is the greatest? 0.35, 0.2, 0.56, 0.8, 0.09
ludmilkaskok [199]
I do believe it is 56
8 0
3 years ago
Read 2 more answers
a musician increases the wavelength of the sound waves she produces without changing their speed. What must be happening to thei
Ilya [14]
Longer wavelength means lower frequency (lower pitch)
7 0
3 years ago
Jikki sells a stereo set for $836.00 . His commission on the sale is 8%. How much does he earn?
kolezko [41]

Answer:

He earns a commission of $66.88.

Step-by-step explanation:

8% of the stereo sale price comes out to 0.08($836.00) = $66.88

He earns a commission of $66.88.

5 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP FOR A BRAINLIEST!!!! Create your own example and explain how to solve Quadratic Equation using Quadratic Formula. Wh
    14·1 answer
  • Factor completely 4x4 − 24x3 + 36x2.
    8·2 answers
  • Which is a solution to ​2x squared -7 x= 3 ?
    15·1 answer
  • In the​ report, the researchers stated that​ "the research team also​ hasn't ruled out that a common factor like genetics could
    12·1 answer
  • Max has a monthly salary of $1,100 and also earns 7.5% commission on his sales. If Max had $43,000 in sales last month, what wer
    7·2 answers
  • The house blueprint shows the bedroom is 4 in wide and its actual length is 12 yards wide. What is the scale for the blueprint?
    13·1 answer
  • Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two
    9·1 answer
  • PLEASE HELP QUICK!!!
    11·1 answer
  • Solve the equation. Select all equivalent forms of the answer.
    12·1 answer
  • Jan 18 Spiral Review<br> Find the surface area of the following complex shapes.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!