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
ladessa [460]
3 years ago
10

Help me with this now please

Mathematics
1 answer:
otez555 [7]3 years ago
5 0

Step-by-step explanation:

davis is right.

You might be interested in
Jeff bought a new jacket that had a regular price of $75.99. His mom gave him a 30% off coupon. What is the price he pays includ
solmaris [256]
  • Answer:98.99

  • Step-by-step explanation:
  • So we are gonna do 75.99+30-7=98.99 so basically he won't have enough money. Hope dat helps

8 0
3 years ago
The distribution of the average amount of sleep per night gotten by college students is roughly bell-shaped with mean 412 minute
kirza4 [7]

Answer:

P(X

P(z

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".  

Solution to the problem

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

X \sim N(412,68)  

Where \mu=412 and \sigma=68

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using the normal standard table or excel and we got:

P(z

4 0
3 years ago
The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a tot
Alex_Xolod [135]

Answer:

12 boys

Step-by-step explanation:

I believe the answer is 12 boys. I hope this helps!

8 0
2 years ago
Write the equation of the circle with the given center and radius.
34kurt

Step-by-step explanation:

The standard equation of a circle is (x - h)^2 + (y - k)^2 = r^2

Center = (h, k)

#1

Center = (0,2)

h = 0

k = 2

r = 5

(x - h)^2 + (y - k)^2 = r^2

(x - 0)^2 + (y - 2)^2 = 5^2

#2

Center = (-4,-5)

h = -4

k = -5

r = \sqrt{2}

(x - h)^2 + (y - k)^2 = r^2

(x - (-4))^2 + (y - (-5))^2 = \sqrt{2}^2

(x + 4))^2 + (y + 5))^2 = \sqrt{2}^2

#3

Center =(-1,3)

h = -1

k = 3

r = 8

(x - h)^2 + (y - k)^2 = r^2

(x - (-1))^2 + (y - 3)^2 = 8^2

(x + 1)^2 + (y - 3)^2 = 8^2

#4

Center: (9,0)

h = 9

k = 0

r = \sqrt{3}

(x - h)^2 + (y - k)^2 = r^2

(x - 9)^2 + (y - 0)^2 = \sqrt{3}^2

4 0
3 years ago
What is -9.75 as a fraction
likoan [24]
The answer to your problem is -9 and 3/4.
4 0
2 years ago
Read 2 more answers
Other questions:
  • The length of LN is 28 centimeters. What is the length of LP?
    11·2 answers
  • During the summer, the population of spring lake is 30,155. During the winter, the population drops down to 13,876. How many peo
    15·2 answers
  • Ava picks a number greater than 3 tens 6 ones. The number is less than 52. It has more than 6 ones. What could the number be?
    8·2 answers
  • Haruka hiked several kilometers in the morning. She hiked only 6 kilometers in the afternoon, which was 25%, percent less than s
    6·1 answer
  • In expanded form, in kilometers, how far is Jupiter from the Sun?
    9·1 answer
  • HELP PLEASEEEEeeeeeeeeeeww
    9·2 answers
  • The number of people that can be safely carried in a lift depends on their mass. A lift will safely
    7·1 answer
  • Working to
    6·1 answer
  • If 2/15 is 40 then 1/15 is?
    10·1 answer
  • Original price $69.80 with a 15% discount, what is the new price.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!