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
Olenka [21]
3 years ago
5

What’s the explanation

Mathematics
1 answer:
Viktor [21]3 years ago
4 0

Answer:

x³ + 2x² - 19x - 20

Step-by-step explanation:

x + 1 = 0

x = -1

Substitute x = (-1) in the polynomial

x³ + 2x² - 19x - 20 = (-1)³ + 2*(-1)² - 19 *(-1) - 20

                            = -1 + 2 +19 - 20

                             = -1 - 20 + 2 + 19

                              = -21 + 21 = 0

So, (x + 10 ix a factor of  x³ + 2x² -19x - 20

You might be interested in
Suppose y varies directly as x, and y = 21 when x = 3. Find x when y = 42.
nata0808 [166]

Answer:

x = 24

Step-by-step explanation:

y₂ - y₁

42 - 21 = 21

x + 21

3 + 21 = 24

So when y increases by 21, so does x.

x = 24

7 0
3 years ago
A grocery store chain uses loyalty cards that offer discounts on sale attheir store. The probability that a randomly chosen shop
Ghella [55]
The answer is a cause
4 0
3 years ago
Identify each function that has a remainder of -3 when divided x+6
Sergeu [11.5K]

Answer:

D

Step-by-step explanation:

According to remainder theorem, you can know the remainder of these polynomials if you plug in x = -6 into them.

<em>So we will plug in -6 into x of all the polynomials ( A through D) and see which one equals -3.</em>

<em />

<em>For A:</em>

x^5 + 2x^2 - 30x + 30\\=(-6)^5 + 2(-6)^2 - 30(-6) + 30\\=-7494

For B:

x^4 + 4x^3 - 21x^2 - 53x + 12\\=(-6)^4 + 4(-6)^3 - 21(-6)^2 - 53(-6) + 12\\=6

For C:

x^3 - 10x^2 - 7\\=(-6)^3 - 10(-6)^2 - 7\\=-583

For D:

x^4 + 6x^3 - 10x - 63\\=(-6)^4 + 6(-6)^3 - 10(-6) - 63\\=-3

The only function that has a remainder of -3 when divided by x + 6 is the fourth one, answer choice D.

5 0
3 years ago
For each trip, a taxi company charges a fixed fee of $2.00 plus $0.75 for each 1/2 mile or fraction of 1/2 miles. If, for every
nydimaria [60]

Answer:

E: 2.00 + 0.75 [ 2r]

Step-by-step explanation:

r represents the number of miles. For each 1/2 mile the taxi will charge and extra free of $0.75. Then, for each mile, the taxi will charge $0.75*2. For example:

For a trip of 1 mile the taxi will charge:

$2.00+$0.75*2

For a trip of 2 miles, the taxi will charge:

$2.00+0.75*4

For a trip of 10 miles, the taxi will charge:

$2.00+$0.75*20

Notice that the variable fee (the one that depends on the number of miles) is $0.75 times the double of miles. In each case the number of miles is multiplied by two. Then the correct answer is E: 2.00 + 0.75 [ 2r]

5 0
3 years ago
the median of the values in a data set is y. if 48 were subtracted from each of the values in the data set what would be the med
Nataliya [291]

 Answer: Y-48

<span>If the median of the values in the data set is Y, it means that Y is the value in the middle of the data set. If 48 will be deducted from each of all values in the data set including Y, then the median of the resulting value will be Y-48. </span>

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for qqq. 3\left(q+\dfrac43\right) = 23(q+ 3 4 ​ )=2<br>pls answer this
    15·1 answer
  • I really need help please
    11·2 answers
  • Barbie s passbook savings account started out with $12000 as last month's balance. Since then, she has made two deposits of $25.
    9·2 answers
  • A tool and die company buys a machine for 175,000 and it depreciates at a rate of 30% per year. Find the depreciated value of th
    6·1 answer
  • What is the future value (total amount due) on a $12,000 loan at 8% compounded
    10·1 answer
  • Julia ride her horse 12 miles in 45 minutes. What is her average speed in mil/hour?
    13·2 answers
  • In the diagram of circle C, what is the measure of 21?
    7·1 answer
  • I’m on a Pythagorean Theorem question. Can someone explain how I do this
    11·2 answers
  • The straight-line L has equation 2x + y = 8. Find the gradient of L.<br><br>PLEASE HELP !!
    9·1 answer
  • Find the equation of the line that contains The given point and is perpendicular to the given line. Write the equation in slope
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!