Answers
Answer:
which language I cant understand
Related Questions
Given the graphs of f(x) = 2x + 2 and g(x) = x - 2, find the solution to this system of equations:
Answers
Answer:
(-4,-6)
hope this helps !
I need help what's the answer anyone?
Answers
Answer:
B
Step-by-step explanation:
Need Help ASAP
Thanks so much in advance...
Answers
Answer:
I will post 4,5 and 6 separately.
Whales have one of the longest gestation periods of any mammal. According to a website, the mean gestation period for a whale is 15 months. Assume the distribution of gestation periods is Normal with a standard deviation of 12 months
a. Find the standard score associated with a gestation period of 13.8 months
b. Using the Empirical Rule and your answer to part a, what percentage of whale pregnancies will have a gestation period between 13.8 and 15 months?
c. Would it be unusual for a whole to have a gestation period of 21 months? Why or why not?
The standard score associated with a gestation period of 13.8 months is __________.
Answers
Answer:
a) The standard score associated with a gestation period of 13.8 months is of [tex]Z = -1[/tex]
b) 34% of whale pregnancies will have a gestation period between 13.8 and 15 months.
c) Since when [tex]X = 21[/tex], [tex]Z = 5 \geq 2[/tex], it would be unusual for a whale to have a gestation period of 21 months.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
If [tex]Z \geq 2[/tex] or [tex]Z \leq -2[/tex], the measure X is considered to be unusual.
According to a website, the mean gestation period for a whale is 15 months. Assume the distribution of gestation periods is Normal with a standard deviation of 1.2 months.
I corrected to 1.2 because it is what makes sense considering the questions.
This means that [tex]\mu = 15, \sigma = 1.2[/tex]
a. Find the standard score associated with a gestation period of 13.8 months
This is Z when X = 13.8. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{13.8 - 15}{1.2}[/tex]
[tex]Z = -1[/tex]
The standard score associated with a gestation period of 13.8 months is of [tex]Z = -1[/tex]
b. Using the Empirical Rule and your answer to part a, what percentage of whale pregnancies will have a gestation period between 13.8 and 15 months?
The standard score associated with a gestation period of 13.8 months is of [tex]Z = -1[/tex], which means that it is one standard deviation below the mean.
The normal distribution is symmetric, which means that of the approximately 68% of measures within one standard deviation of the mean, 68%/2 = 34% are within one standard deviation below the mean(in this case, 13.8) and the mean(in this case 15), and 34% are within the mean and one standard deviation above the mean.
So 34% of whale pregnancies will have a gestation period between 13.8 and 15 months.
c. Would it be unusual for a whale to have a gestation period of 21 months? Why or why not?
Let's find the z-score
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{21 - 15}{1.2}[/tex]
[tex]Z = 5[/tex]
Since when [tex]X = 21[/tex], [tex]Z = 5 \geq 2[/tex], it would be unusual for a whale to have a gestation period of 21 months.
please help me need help
Answers
Answer:
Step-by-step explanation: So all you do it cut the shape up like into in long rectangle and one really tiny rectangle and then do. 3x12 and then 1x3 and then add the answers up so it should equal 39
A store sells T-shirts for $12 each and sweatshirts for $15 each. You plan to spend $120 on T-shirts and sweatshirts.
Part A: Write an equation to represent how many T-shirts, x and sweatshirts, y you can buy.
Part B: If you purchase 5 T-shirts, how many sweatshirts can you purchase?
Answers
I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
Answer:
A.) 12x+15x=120
B.) 5 sweatshirts
Step-by-step explanation:
A.) Let x=T-shirts
Let y= Sweatshirts
B.) 12x+15x=120
12(5)+15x=120
60 + 15x=120
-60 -60
________________
15x=104
___ ____
15 15
___________________
x=6.93333*
*Round it down to 5
What is the probability that Mary will get an "11"?
Answers
Answer:
yeaa what
Step-by-step explanation:
I’ll give points and brainalist for answer / explanation
Answers
Answer:
B. 48 cm²Step-by-step explanation:
The area between the concentric circles:
A = π(R² - r²)If we tale π ≈ 3, we know R = 5 cm, we see r = R - 2 = 5 - 2 = 3 cm, then
A = 3(5² - 3²) = 3(16) = 48 cm²Correct choice is B
what is the order from least to greatest(38%,3/8,0.4,1/3,41%,0.33)
Answers
What’s greater 20 yards or 720 inches
Answers
720/12=60 ft
60/3= 20 yards
So 20 yards and 720 inches are equal
three consecutive even integers add up to -6 what are they?
PLEASE PLEASE HELP I GIVE BRAINLIEST AND ALOT OF POINTS
Answers
Answer:
I think this is the answer
Answer:
0,-2,-4
Step-by-step explanation:
1st Integer = x-2
2nd Integer = x
3rd Integer = x+2
(x-2) + x + (x+2) = -6
x+x+x=-6
3x=-6
x=-2
Hope this helps!
HURRY I NEED HELPP!!
Answers
can you help me with 1 - 4
Answers
Me das mas información porfavor?
1/3 + 1/2 and I am 5 years old
Answers
Answer:
5/6
Step-by-step explanation:
help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
This is the correct graph but can it fit on your graph?
Step-by-step explanation:
Answer:
is in the photo
Step-by-step explanation:
hope this helps
In ΔKLM, l = 7 inches, k = 9.5 inches and ∠K=54°. Find all possible values of ∠L, to the nearest 10th of a degree.
Answers
Answer: 36.6
Step-by-step explanation: did on delta math
find the value of M in the following equation 7=m*12
Answers
Step-by-step explanation:
7=m*12
divide the equation by 12
7/12=12m/12
7/12=m
if you meant to type 7=m^12
then the answer for m is 7^(1/12)
which is 1.1760
Hope that helps :)
work out 5×6 - 8 ÷2
Answers
Answer: 26
Step-by-step explanation:
5×6 - 8 ÷2
= 30 - 8 ÷2
= 30 - 4
= 26
Answer:
26
Step-by-step explanation:
so we start off with 5x6 from PEMDAS so 5x6 = 30
then we have 8 divided by 2 = 4
30-4 = 26
The table gives predictions of the average costs of a gasoline car after the year 2030. Which graph best represents the relationship between time and the predicted cost?
Answers
Answer:
It's the b graph
Step-by-step explanation:
Khan Academy.
Answer:
The line slightly curves.
Step-by-step explanation:
Got it right on Khan
I need help please help
Answers
Answer:
A
Step-by-step explanation:
use the formula A=pi*r^2 to find the answer
Answer:
34.54 ft2
Step-by-step explanation:
You could figure it out by simply it
Three girls walked home together each day. They walked at a rate of 3 miles per hour. They left school each day at 3:35 pm. The first girl arrived home at 3:55 pm. The other two girls arrived home at 4:05 pm and 4:15 pm. What is the total number of miles walked by the three girls combined?
solved answer
Answers
Answer:
4.5
Step-by-step explanation:
first girl took 20 mins walking 1 mile
second girl took 30 mins walking 1.5 miles
third girl took 40 mins walking 2 miles
PLS HELP! (THE QUESTION IS A PICTURE CLICK ON THE QUESTION FIRST)
Answers
Answer:
Step-by-step explanation:
B.28.1
Answer:
It's BBBBBBBBBBBBBBBBB
Please Help i give brainies
Answers
Step-by-step explanation:
[tex] \sqrt{3} is \: between \: 1.73and1.74[/tex]
What is the area of the parallelogram below? Use the formula A = bh. 8 ft 13 ft
Answers
Answer:
Step-by-step explanation:
i think its 104
Please need help thank you
Answers
Answer:
9
Step-by-step explanation:
Answer:
9 clients ran at least 2 laps
Step-by-step explanation:
5 clients ran 2 laps, and 4 clients ran 3 laps
3/4x 2 1/3 what is the answer to this question
Answers
Answer:
1.75
Step-by-step explanation:
nsjdjdjdjdjndnsjdjdjjddbjdjsjsj its 1.75
Answer:
7/4
Step-by-step explanation:
3/4 * 2 1/3 = 7/4
Hope this helps =]
What is the equation for the line of reflection?
x=6
y=6
y=x
y=2
Answers
A: x=6
B: y=6
C: y=x
D: y=2
Then I believe your answer is x=6, or A.
The line of reflection is a line which divides the graph so that both sides essentially represent a mirror; so both sides should look like they’re reflected across one point. This point is your line of reflection, in this problem you simply have to look for where that line would be, draw a line straight down; you go through 6 on the X axis. Usually Y=[number] is a line going across whereas X=[number] is a line going up and down so from there you know it has to be the up-and-down line, x.
Please somebody help me and solve this problem
Answers
Answer:
this is the equation for the graph y=(x+3)(x-2)
Which answers describe the shape below? Check all that apply.
O A. Trapezoid
O B. Parallelogram
O c. Square
D. Quadrilateral
E. Rhombus
F. Rectangle
Answers
Answer:
Square, Quadrilateral, Rhombus, Rectangle
Step-by-step explanation:
I need help please.
Answers
Answer:
may it help you..MARK ME AS BRAINLISTS PLS