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
Ira Lisetskai [31]
3 years ago
10

Factor completely x3 + 7x2 − 2x − 14.

Mathematics
2 answers:
Lerok [7]3 years ago
7 0

Answer:

(x + 7) (x^2 - 2)

Step-by-step explanation:

Aliun [14]3 years ago
3 0
Answer:

(x + 7) (x^2 - 2)

When you multiply these two factors together, you should get the original polynomial as your answer.

Hope this helps :)
You might be interested in
How is multiplication using partial products different from multiplication using regrouping?
klio [65]
Partial products is breaking down every number in multiplication and adding them. Regrouping is grouping number them adding them.They are alike because they both involve breaking down the numbers and adding them.  They are different because one is taking all the numbers broken down, while the other is just a couple of the number.
5 0
3 years ago
Read 2 more answers
Match the fractions with Equivalent percentages
Mrrafil [7]

In order to match each of the pairs you need to divide the numerator by the denominator to make it into a decimal.

Below are the pairs:

21/25 = 84%

13/20 = 65%

2/5 = 40%

3/4 = 75%

3/5 = 60%

7 0
3 years ago
What is 2+1000000000
Mazyrski [523]
Answer is 1000000002
6 0
2 years ago
Read 2 more answers
A manufacturer produces light bulbs that have a mean life of at least 500 hours when the production process is working properly.
denpristay [2]

Answer:

We conclude that the population mean light bulb life is at least 500 hours at the significance level of 0.01.

Step-by-step explanation:

We are given that a manufacturer produces light bulbs that have a mean life of at least 500 hours when the production process is working properly. The population standard deviation is 50 hours and the light bulb life is normally distributed.

You select a sample of 100 light bulbs and find mean bulb life is 490 hours.

Let \mu = <u><em>population mean light bulb life.</em></u>

So, Null Hypothesis, H_0 : \mu \geq 500 hours      {means that the population mean light bulb life is at least 500 hours}

Alternate Hypothesis, H_A : \mu < 500 hours     {means that the population mean light bulb life is below 500 hours}

The test statistics that would be used here <u>One-sample z test statistics</u> as we know about the population standard deviation;

                           T.S. =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \bar X = sample mean bulb life = 490 hours

           σ = population standard deviation = 50 hours

           n = sample of light bulbs = 100

So, <u><em>the test statistics</em></u>  =  \frac{490-500}{\frac{50}{\sqrt{100} } }

                                     =  -2

The value of z test statistics is -2.

<u>Now, at 0.01 significance level the z table gives critical value of -2.33 for left-tailed test.</u>

Since our test statistic is higher than the critical value of z as -2 > -2.33, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u>we fail to reject our null hypothesis.</u>

Therefore, we conclude that the population mean light bulb life is at least 500 hours.

7 0
3 years ago
Write the equation of the line through (3,9) and (-2,9)
strojnjashka [21]

Answer:

y = 9

Step-by-step explanation:

y-y1 = m(x-x1)

m is the slope =y2-y1/x2-x1=9-9/-2-3=0

pick any number out of the given two for (x1, x2)

y-9 = 0*(x-3) so

y-9 = 0 add 9 to both sides

y = 9

5 0
2 years ago
Other questions:
  • Sally’s father baked 8 cookies. Sally and 4 friends (5 people total) decide to share the cookies equally. How much will each per
    14·2 answers
  • At the city museum, child admission is
    12·2 answers
  • The difference between 8 less than q?
    9·1 answer
  • A candy bar box is in the shape of a triangular prism the volume of the box is 2400 cubic centimeters part A: what is the height
    9·1 answer
  • Could I solve this inequality by completing the square? How would I do so?
    15·1 answer
  • Write monomial in it's standard form<br> 0.15pq·4pq2
    15·1 answer
  • Please answer this correctly
    13·1 answer
  • A spinner is divided into five sections, labeled A, B, C, D, and E. Devon spins the spinner 50 times and records the results in
    5·1 answer
  • The scale of floor plan is 1:250. Find the measurements in metres if 40 mm is drown on the plan​
    5·1 answer
  • Write a paragraph proof that 1+1=2<br> (Fun fact: it took over 72 pages just to prove that 1+1=2)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!