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
Zarrin [17]
3 years ago
14

If (x + 2 ) is a factor of x3 − 6x2 + kx + 10, k =

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0
If a binomial x-a is a factor of a polynomial p(x), then p(a)=0.

x+2 is a factor of p(x)=x³-6x²+kx+10, so p(-2)=0.

p(-2)=0 \\
(-2)^3 - 6 \times (-2)^2 + k \times (-2) + 10=0 \\
-8-6 \times 4-2k+10=0 \\
-8-24-2k+10=0 \\
-2k-22=0 \\
-2k=22 \\
k=\frac{22}{-2} \\
\boxed{k=-11}
Gwar [14]3 years ago
4 0

Answer:

-11

Step-by-step explanation:

You might be interested in
Joseph is weaving a ceremonial Native American sash.
stepladder [879]

Answer:

20

Step-by-step explanation:

8 divided by 0.4=20, so twenty is the answer.

3 0
3 years ago
Read 2 more answers
Give an example of undefined term and defined term in geometry
vovangra [49]
<span>These are undefined terms:1.plane2.point3.line.
These are defined </span><span>terms: 1.ray 2.union of sets 3.space 4.subset 5.set 6.proper subset 7.opposite</span><span><span>
</span></span>
4 0
4 years ago
What is the exam score for an exam whose z-score is 1.25?
mojhsa [17]

Answer:

85

Step-by-step explanation:

A z-score of 1.25 means that the actual exam score is 1.25 standard deviations above the mean, and therefore the exam score we are looking for is: mean + 1.25 * SD = 75 + 1.25 * 8 = 85

4 0
3 years ago
Write an expression that is equivalent to two over three(4x + 9).
svp [43]
2/3(4x + 9) = 8/3x + 6
8 0
4 years ago
Read 2 more answers
Bob is selling floral arrangements. Each arrangement uses 1 vase and 15 tulips. Each vase costs Bob $4.00. Let C be the total co
schepotkina [342]
There would be 15 tulips + 1 vase per each arrangement, so we could write:
15(t) + 4 =C

However, that if not in slope-intercept form. So, let us rewrite our equation...
We know that slope-intercept form is in the format y=mx+b, therefore our new equation must be, too. 
We will let C be our "y," 15(t) be our "mx" and 4 be our "b." Which would look like this:
C=15(t)+4
Which can be more simply written as:
C=15t+4.

Boom, that's your answer.
I hope this helped. 
Best of luck on your test/homework


3 0
4 years ago
Other questions:
  • Darren wanted to see how contagious yawning can be. To better understand this, he conducted a social experiment in which he yawn
    7·1 answer
  • Massachusetts has a population of over 6,550,000 people. The maximum number of hairs that can grow on a human head is 500,000. P
    14·1 answer
  • What is the equation of the line in slope-intercept form?<br> y=_ x +_
    13·1 answer
  • What is 39,265 to the nearest ten thousand
    10·1 answer
  • Two fathers and two sons sat down to eat eggs for breakfast. They ate exactly three eggs, each person had an egg. The riddle is
    9·2 answers
  • Set the left side of this equation equal to and the right side equal to . Then graph and on the same coordinate grid.
    8·1 answer
  • the lengths of the sides of a triangle are x, x - 5, 3x centimeters. if the perimeter is 80 centimeters, what is the value for x
    6·1 answer
  • Martin has a combination of 33 quarters and dimes worth a total of $6. Which system of linear equations can be used to find the
    11·2 answers
  • Can u help me check if this is correct ty
    15·2 answers
  • Sophies mom cans jelly. She fills each jar with 1/2 a pint of jelly. If she made 1 7/10 pints of jelly, which expression can be
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!