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
Elena L [17]
3 years ago
12

Kim is earning money for a trip. She has saved and she earns per hour babysitting. The total amount of money earned (y) after (x

) number of hours worked is given by the equation . How many hours will she need to work in order to earn for her trip?
Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

what is the amount of money Kim earn per hour of babysitting? Also I need to know how much trip cost to find out how many hours she need to work.

Step-by-step explanation:

You might be interested in
Write the equation of the line that passes through the points (-9,3) and (8,3). Put
horsena [70]

Answer:

y=3

Step-by-step explanation:

The line is horizontal as both points lie on y=3

8 0
3 years ago
Read 2 more answers
For bone density scores that are normally distributed with a mean of 0 and a standard deviation of 1, find the percentage of sco
Alex787 [66]

Answer:

a) P(Z>2)

For this case we can use the normal standard table or excel and the complement rule and we got:

P(Z>2) =1-P(Z

b) P(Z

For this case we can use the normal standard table or excel and we got:

P(Z

c) P(-2

And we can find this probability with this difference:

P(-2

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part a

Let Z the random variable that represent the bone density scores of a population, and for this case we know the distribution for X is given by:

Z \sim N(0,1)  

Where \mu=0 and \sigma=1

We are interested on this probability

P(Z>2)

For this case we can use the normal standard table or excel and the complement rule and we got:

P(Z>2) =1-P(Z

Part b

We are interested on this probability

P(Z

For this case we can use the normal standard table or excel and we got:

P(Z

Part c: not significant​ (or less than 2 standard deviations away from the​ mean).

For this case we want this probability:

P(-2

And we can find this probability with this difference:

P(-2

6 0
3 years ago
What is the algebraic expression for the following word phrase: the sum of 5 and 2x?
Naya [18.7K]
<span>the sum of 5 and 2x :  5 + 2x 

You can't add this because they are not like terms
</span>
6 0
3 years ago
Please help me asap!
RUDIKE [14]
Your answers are a,d,and e. i truly hopes this helps and forgive me if im wrong.
6 0
3 years ago
Which graph could represent a car that begins by increasing its speed, then travels at a constant speed, and then
topjm [15]

Answer:

The top one would be the answer

7 0
2 years ago
Other questions:
  • The forest was 600 acres in size 2/5 had been ravaged by bushfire how many acres were affected by bushfire?
    9·2 answers
  • Plz help my daughter she can't figure it out plz help her
    7·1 answer
  • A retail shop accepts only cash or checks suppose that 45% of its customers carry cash 44% carry checks and 31% carry both cash
    5·1 answer
  • Mr. Smith built a rectangular-shaped sandbox for his children, measuring 4 feet by 4 feet by 6 inches. Sand has a density of app
    13·1 answer
  • A &amp;B share the cost in a ratio of 3:2 A pays £125 how much dose B pay
    7·1 answer
  • Please answer correctly !!!!! Will mark brainliest answer !!!!!!!!!!!!
    10·1 answer
  • Evaluate.<br><br> 10squared +6⋅7+8<br><br><br> 70<br><br> 142<br><br> 150<br><br> 190
    10·2 answers
  • What's the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B10000%7D%20" id="TexFormula1" title="
    8·2 answers
  • What is the answer to $(x+4)(x^2+3x+2)=
    12·2 answers
  • There are 10 flashcards with digits from 0 to 9 written on them. Andrew drew the card with 2 on it. He is about to draw another
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!