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
Alexeev081 [22]
3 years ago
15

(x^3-4x^2+7x-28)/(x^2+7)

Mathematics
1 answer:
saw5 [17]3 years ago
6 0

Answer:

-x+4

Step-by-step explanation:

given that

(x^3-4x^2+7x-28)÷(x^2+7)

or

first (x^2+7) × -x = -x^3-7x

so (x^3-4x^2+7x-28) + (-x^3-7x) = -4x^2-28

agian (x^2+7)×(4) = 4x^2+28

so, (-4x^2-28) + (4x^2+28) = 0

hence the quotient is -x+4

You might be interested in
What is the domain of the profit function P=6t+10s?
adell [148]

Answer:

Im pretty sure its B

Step-by-step explanation:

Up above

6 0
3 years ago
Read 2 more answers
Ellen can purchase 5 apples for $1.75. How many apples can she get for $1?
Romashka-Z-Leto [24]

Answer:

2 apples

Step-by-step explanation:

  1. 1.75 ÷ 5 = 0.35
  2. 1 ÷ 0.35 = 2.85
  3. 2.85 rounded = 2

I hope this helps!

6 0
3 years ago
A computer software vendor claims that a new version of its operating system will crash fewer than 10 times per year on average.
Oksana_A [137]

Answer:

Step-by-step explanation:

The hypothesis is written as follows

For the null hypothesis,

µd ≤ 10

For the alternative hypothesis,

µ > 10

This is a right tailed test

Since no population standard deviation is given, the distribution is a student's t.

Since n = 97

Degrees of freedom, df = n - 1 = 97 - 1 = 96

t = (x - µ)/(s/√n)

Where

x = sample mean = 8.9

µ = population mean = 10

s = samples standard deviation = 3.6

t = (8.9 - 10)/(3.6/√97) = - 3

We would determine the p value using the t test calculator. It becomes

p = 0.00172

Since alpha, 0.01 > than the p value, 0.00172, then we would reject the null hypothesis. Therefore, At a 1% level of significance, there is enough evidence that the data do not support the vendor’s claim.

3 0
3 years ago
A volleyball player sets the ball in the air, and the height of the ball after t seconds is given in feet by h= -16^2+12t+6. A t
pychu [463]

Answer:

Step-by-step explanation:

The given function is

h=-16t^2+12t+6

The graph of this function is a parabola that opens downwards

The line h(t)=8 intersects this parabola, when

t=0.5,t=0.25

The teammate can spike the ball after 0.25 seconds or 0.5 seconds.

The two solutions are reasonable. When the volleyball is accelerating into the air, it passes a height of 8 after 0.25 seconds.

When the ball is dropping after it attains maximum height, it attains another height of 8 after 0.5 seconds again.

8 0
3 years ago
Ratio question<br> I will mark brainliest
Usimov [2.4K]

2 m  -  polyester fabric: 4, cotton fabric: 14

6 m  -  polyester fabric: 12, cotton fabric: 42

8 m  -  polyester fabric: 16, cotton fabric: 56

9 m  -  polyester fabric: 18, cotton fabric: 63

check:

2 m: 4/14=2/7

6 m: 12/42=2/7

8 m: 16/56=2/7

9 m: 18/63 = 2/7

7 0
3 years ago
Other questions:
  • The perimeter of a pool table is 30 feet. The table is twice as long as it is wide. What is the length of the pool table?
    7·1 answer
  • ava wants to buy three pairs of a certain style of jeans at two different stores jeans jam sells the jeans 25% off the $24.99 re
    9·1 answer
  • Which figure repeats in the tessellation shown below?
    9·2 answers
  • 2/3 x 21=? find the product then write it in simplest form.
    8·1 answer
  • What is the exact volume of the cylinder
    13·2 answers
  • A pencil box has dimensions of: 6 1/2 inches, 3 1/2 inches, and 1 1/2 inches, respectively. Approximately, how many cubes with s
    15·1 answer
  • See screenshot below​
    12·2 answers
  • 1 Determine the volume of the square pyramid shown. Give an exact answer.
    10·2 answers
  • Find three consecutive numbers whose sum shall equal 45.​
    13·2 answers
  • What is 5 times 1? I learned this a long time ago but I forgot.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!