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
salantis [7]
3 years ago
11

Subtract -2k^3 + k^2 - 9 from 5k^3 - 3k + 7.

Mathematics
1 answer:
katen-ka-za [31]3 years ago
4 0
5k^3 - 3k + 7.-(-2k^3 + k^2 - 9)

7k^3 +k^2-3k +16


C. 7k^3 - k^2 - 3k + 16
You might be interested in
If the distance from C to C' is 8 and the scale factor is 5. What is the distance from A to C?
Juliette [100K]

Answer:

Yea

Step-by-step explanation:

6 0
3 years ago
B. (3.9) and (4.6)<br> The rate of change between these two points is
USPshnik [31]

Answer: 0.7 is the rate change between the two points

3 0
3 years ago
Evaluate the piecewise function for the given values.
adoni [48]

Answer:

f(-3) = -2

f(-2.6) = -2

f(0.6) = 2.4

f(4.5) = 8.5

Step-by-step explanation:

(Whole question:

Evaluate the piecewise function for the given values.

Find f(-3), f(-2,6), f(0.6), and f(4.5) for f(x)={ -2 If x ≤ 0 4x. If 0 <x <1. x + 4. If x ≥ 1)

As the piecewise function shows, the function f(x) has the value of -2 for values of x lesser or equal than 0, has the value of 4x if the value of x is between 0 and 1, and has the value of x+4 for values of x greater or equal than 1.

So, for f(-3), the value of x is lesser than 0, so we have that f(-3) = -2

For f(-2.6), the value of x is lesser than 0, so we have that f(-3) = -2

For f(0.6), the value of x is between 0 and 1, so we have that f(0.6) = 4*0.6 = 2.4

For f(4.5), the value of x is greater than 1, so we have that f(4.5) = 4.5 + 4 = 8.5

5 0
2 years ago
Cheryl can travel 21.6 miles on one gallon of gas. how far can cheryl travel on 6.2 gallons of gas?
boyakko [2]
21.6 miles per gallon

Multiplied by 6.2 gallons 

21.6 * 6.2 = 133.92

Cheryl can travel 133.92 (or about 134) miles on 6.2 gal. of gas.

Hope that helped!
6 0
3 years ago
An envelope contains three cards: a black card that is black on both sides, a white card that is white on both sides, and a mixe
Over [174]

Answer:

There is a  2/3  probability that the other side is also black.

Step-by-step explanation:

Here let B1: Event of picking a card that has a black side

B2: Event of picking a card that has BOTH black side.

Now, by the CONDITIONAL PROBABILITY:

P(B_2/B_1 )  = \frac{P(B_1\cap B_2)}{P(B_1)}

Now, as EXACTLY ONE CARD has both sides BLACK in three cards.

⇒ P (B1 ∩ B2) = 1 /3

Also, Out if total 6 sides of cards, 3 are BLACK from one side.

⇒ P (B1 ) = 3 /6 = 1/2

Putting these values in the formula, we get:

P(B_2/B_1 )  = \frac{P(B_1\cap B_2)}{P(B_1)} = \frac{1}{3}  \times\frac{2}{1} = \frac{2}{3}

⇒ P (B2 / B1)  =  2/3

Hence, there is a  2/3  probability that the other side is also black.

 

5 0
3 years ago
Other questions:
  • What is the square root of 216v
    10·1 answer
  • Help please fast:):):):):):
    6·2 answers
  • What is 400 percent as a mixed number?
    15·1 answer
  • Plzzzzzzz helpppp right answer gets brainly
    8·2 answers
  • I don't understand,please help​
    5·1 answer
  • Sketch the graph of the given function. Then state the function’s domain and range. y = 7(4)x
    11·2 answers
  • Match each variable with what it represents in a sequence formula.
    8·1 answer
  • Starting with the number 100, Shaffiq repeatedly divides his number by two and then takes the greatest integer less than or equa
    5·1 answer
  • Please help :) Thank you
    8·1 answer
  • Please answer This Just Try Don't skip​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!