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
ratelena [41]
3 years ago
14

Solve using the quadratic formula

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
7 0
The answers are -16 and 9. Hopefully this helps :D

You might be interested in
. A recent report in a women magazine stated that the average age for women to marry in the United States is now 25 years of age
Setler [38]

Answer: 0.0136

Step-by-step explanation:

Given : Mean : \mu=25

Standard deviation : \sigma=3.2

Sample size : n=50

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

For x = 24

z=\dfrac{24-25}{\dfrac{3.2}{\sqrt{50}}}=-2.21

The p-value = P(z\leq-2.21)= 0.0135526\approx0.0136

Hence, the probability that the sample mean age for 50 randomly selected women to marry is at most 24 years = 0.0136

3 0
3 years ago
Eva works as a salesperson at an electronics store and sells phones and phone accessories. Eva earns a $8 commission for every p
adoni [48]

Answer:

Hope this helps out dude!

Step-by-step explanation:

6 0
3 years ago
Robert is looking to buy a deep fryer. He has narrowed his search down to two models. The following table gives the details of t
Zinaida [17]
The total cost for the entire life span of the deep fryer  is computed below:
Brand P total cost =Purchase price + total electricity cost 
                                = $144+($0.49x8x12x6)
                                =$426.24
Brand Q total cost =(Purchase price x 3)+ total electricity cost
                                =( $37.5x3)+($0.75x 8x12x6)
                                =   $544.5
Difference = Brand Q-Brand P
                   =$544.5-$426.24
                   =$118.26
Robert will have to choose Brand P because it will be cheaper by $118.26 than Brand Q in their entire lifetime.
                     
5 0
3 years ago
Read 2 more answers
Which number is irrational <br> 25/9
pantera1 [17]
We have a fraction of two integers, so 25/9 is rational. A rational number is any fraction of two integers (as long as the denominator is not zero).
5 0
3 years ago
A boy is 3 years more than twice as old as his sister. His sister is 6 years old. How old is the boy?
AlexFokin [52]
The boy is 15 because twice the age of his sister is 12, then you add the three years to it and get 15
3 0
3 years ago
Read 2 more answers
Other questions:
  • A company needs to replace 27 out of 45 desks in their office. What percent of the desks need to be replaced?
    5·2 answers
  • Three more than a number squared?
    15·1 answer
  • Rewrite the following equation x(x)-14x+24=y in vertex form. What is the vertex?
    6·1 answer
  • PLEASE HELP 40 POINTS &amp; BRAINLIEST!
    12·2 answers
  • One side of a rectangle is 3 inches shorter than the other side, and the perimeter is 54 inches. What are the dimensions of the
    14·1 answer
  • Please help me :)), do not 'troll' with answers, it's graded...
    11·1 answer
  • ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. Show your work OR give an explaination.
    14·1 answer
  • Amy received a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.24 per pound. After buying the c
    8·1 answer
  • What percent of 21 is 105? ​
    10·2 answers
  • Consider the two functions which statement is true
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!