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
Semenov [28]
3 years ago
5

the solutions to a quadratic question are -6 ans +6. You figure it the original equation and write it in standard form ax2+bx+c=

0. What is the value of "b"?
Mathematics
1 answer:
Butoxors [25]3 years ago
8 0

Answer:

this must be (x+6)(x-6)

when that is multiplied out you get x^{2} + 36

so there would be no b, b therefore is equal to zero in this equation

Step-by-step explanation:

You might be interested in
B) State a valid formula for multiplying out (A + B)(A − B)
Diano4ka-milaya [45]

(A+B)(A-B) = A^2-B^2.

It's equality constant

8 0
3 years ago
10. A manufacturer wanted to know if more coupons would be redeemed if they were mailed to the
Mandarinka [93]

Using the t-distribution, it is found that the data does not provide convincing evidence that the mean number is greater when the coupons were addressed to a female.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference, that is, the mean is of 0, hence:

H_0: \mu = 0

At the alternative hypothesis, it is tested if the mean number is greater for females, that is, the mean is greater than 0, hence:

H_1: \mu > 0

<h3>What is the test statistic?</h3>

The test statistic is given by:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

The parameters are:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • s is the standard deviation of the sample.
  • n is the sample size.

In this problem, the parameters are given as follows:

\overline{x} = 1.5, \mu = 0, s = 4.75, n = 50.

Hence, the test statistic is given by:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{1.5 - 0}{\frac{4.75}{\sqrt{50}}}

t = 2.23

<h3>What is the conclusion?</h3>

Considering a <em>right-tailed test</em>, as we are testing if the mean is greater than a value, with a <em>significance level of 0.01 and 50 - 1 = 49 df</em>, the critical value is given by t^{\ast} = 2.4.

Since the test statistic is less than the critical value for the right-tailed test, the data does not provide convincing evidence that the mean number is greater when the coupons were addressed to a female.

More can be learned about the t-distribution at brainly.com/question/26454209

5 0
2 years ago
How can i find the answer to 188x31?
eduard
The answer to 188x31 is 5,828
7 0
3 years ago
In ΔABC,AB = 20 cm, AC = 15 cm. The length of the altitude AN is 12 cm. Prove that ΔABC is a right triangle.
Makovka662 [10]
It is the pythagorean theorem converse
4 0
3 years ago
Read 2 more answers
If Sophia purchases n songs for .99 cents each, write an expression for the total cost.
kodGreya [7K]

Answer:

I think the answer would be n×0.99

Step-by-step explanation:

the answer will be n×0.99 because she bought for example n=7 each for 99 cents. to find the total you would have to do 7x0.99. Hope this help you

3 0
3 years ago
Read 2 more answers
Other questions:
  • There are 150 students and 3/5 of these students are girls. 2/3 play school activities. how many play activities?
    9·2 answers
  • E is the midpoint of Df, DE=2x+4, and EF=3x-1. Find all segment lengths
    12·1 answer
  • e given line passes through the points (−4, −3) and (4, 1). What is the equation, in point-slope form, of the line that is perpe
    9·2 answers
  • Which equation describes the line that passes through points (2,5) and (0,9)?
    8·1 answer
  • Convert 50 kilogram to pounds. (The conversion factor from kilogram to pound is 2.2046.) A. 52.2 lb. B. 110.2 lb. C. 22.6 lb. D.
    7·1 answer
  • Consider triangle WXY. Triangle W X Y is shown. The length of side W X is 5, the length of side X Y is 10, and the length of sid
    11·2 answers
  • PLEASE HELP! OFFERING ALL OF MY POINTS!!! I NEED ALL OF THE ANGLES AND I GET TO GO TO A CHARTER SCHOOL!!! I CANT FIGURE THIS OUT
    13·1 answer
  • PLEASE HELP ASAP!!<br> Find the area of the figure. Round your answer to the nearest hundredth.
    12·2 answers
  • If FG = 4 and GH = 15, find FH
    15·1 answer
  • Bruce's hourly wage increased from $12.00 to $13.00. What is the percent of increase?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!