Answer:
0.72 with a line
Step-by-step explanation:
1a. [1 mark] The price per kilogram of tomatoes, in euros, sold in various markets in a city is found to be normally distributed with a mean of 3.22 and a standard deviation of 0.84. Find the price that is two standard deviations above the mean price.
Answer:
The price that is two standard deviations above the mean price is 4.90.
Step-by-step explanation:
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 z-score 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 p-value, we get the probability that the value of the measure is greater than X.
Mean of 3.22 and a standard deviation of 0.84.
This means that [tex]\mu = 3.22, \sigma = 0.84[/tex]
Find the price that is two standard deviations above the mean price.
This is X when Z = 2. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]2 = \frac{X - 3.22}{0.84}[/tex]
[tex]X - 3.22 = 2*0.84[/tex]
[tex]X = 4.9[/tex]
The price that is two standard deviations above the mean price is 4.90.
– 3(4^2) step by step pls
Answer:
The answer is -48
Step-by-step explanation:
First step is to follow PEMDAS
So we start solving whatever is in the ( )
4^2 is in the ( ) 4^2 = 16 then we multiply
-3 * 16 which is -48
-
ANSWER ASAP WILL MARK BRAINLIEST
Answer: A
Step-by-step explanation:
Twice a number a is less than 3.
Answer:
1
Step-by-step explanation:
1 twice is still 1. This is less then 3.
1 x 1 = 1 <3
What is 4h when h=25?
Answer:
100
Step-by-step explanation:
When h has the value 25, the expression 4h has the value 4(25), or 100.
Answer:
100
Step-by-step explanation:
4(25)=100
Solve for x:
5/8=X-1/9
Answer:
x=5/8+1/9
x=53/72
......
Answer:
53/72 you didn't give me the answer choices but this is the exact form of this equation
The function f (x) varies directly with x and f (x) = 160 when x = 40.
What is f () when x = 8?
2
32
5
20
Answer:
it is 32.
I know this because it was in my last year syllabus
The supply function for a product is given by p = 40 + 100 underroot 2x + 9, where x is the number of units supplied and p is the price in dollars. If the price is increasing at a rate of $1 per month, at what rate is the supply changing when x = 20?
the supply changing when x=20 is 40
Find the measure of the exterior angle.
Answer:
u = 143º
Step-by-step explanation:
Sum of angles in a triangle is 180
The unknown angle IN the triangle
x + 90 + 53 = 180
x + 143 = 180
x = 37º
x and u are supplementary angle which total 180
u + 37 = 180
u = 143º
Answer:
Two ships are docked 328.51 m apart.
What will be the distance, in kilometres, covered by Steven who did 10 laps between
the ships?
Answer:
Answer:
0.32851 Kilometers i think
Step-by-step explanation:
100 points What is the value of this question ? please help fastttt !!!!!!!!!!!!!!!
Answer:-5
Step-by-step explanation:
The probability of picking a quarter from a jar of coins is 0.125. If Cindy has 280 coins in the jar, how many quarters are in the jar?
Answer:
35
Step-by-step explanation:
The black triangles are similar. Find the value of x.
No links please!!
9514 1404 393
Answer:
16
Step-by-step explanation:
The altitude of the triangle is 12/21 = 4/7 of the marked side. If we assume that the marked sides are the ones that are corresponding, then ...
x = (4/7)(28)
x = 16
The y intercept of the line that is perpendicular to the line 18x−6y=12 and passes through the point (6,1) is...
Step-by-step explanation:
all working is above
hope thats of help
The y- intercept is 3.
What is slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Given:
18x−6y=12
Writing the above equation in slope- intercept form
6y = 18x - 12
y= 18x /6 - 12/ 6
y= 3x - 2.
So, the slope of perpendicular line is -1/3 and passes through (6, 1)
y= mx+ c
1 = -1/3 (6) + c
1 = -2 + c
c= 3
Hence, the y- intercept is 3.
Learn more about slope here:
https://brainly.com/question/3605446
#SPJ2
College Math! Calculus!!!
Answer:
[tex]\int _0^{\frac{3\pi }{2}}\left|\sin \left(x\right)\right|dx[/tex] = [tex]3[/tex]
Step-by-step explanation:
[tex]\int _0^{\frac{3\pi }{2}}\left|\sin \left(x\right)\right|dx[/tex] = [tex]\int _0^{\pi }\sin \left(x\right)dx+\int _{\pi }^{\frac{3\pi }{2}}-\sin \left(x\right)dx[/tex] = [tex]2+1[/tex] = [tex]3[/tex]
what does proportion mean in algebra when dealing with graphs
Please help with my hw I cannot figure this out
Answer:
K 1 k'1
J2 j'5
L,0 l'5
Step-by-step explanation:
I also need help with these
Answer:
Triangles = 4
Rectangles = 2
Step-by-step explanation:
Triangle.
8/2 = 4 . ratio = 4:1 or fraction form as 4
Rectangle.
4/2 = 2. ratio = 2:1 or fraction form as 2
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Tiya earns $7 an hour mowing her neighbor's lawn.
Part A: Create two variables and determine which is dependent and which is independent for this situation. (4 points)
Part B: List three ordered pairs to show the values of the two variables. (3 points)
Part C: Write an equation to represent the relationship between the two variables. (3 points)
Part A) The independent variable is the hours that Tiya mows her neighbor's lawn, and we can denote that with x. It's the variable that isn't affected by other factors. The dependent variable is the amount of money Tiya earns, which we can denote with y. The dependent variable is the variable that is affected by other factors. The amount of money Tiya makes depends on how many hours she works.
Part B) As stated in part A, x is the hours and y is the money earned. The ordered pairs are in (x, y) form, with x being the hours and y being the money earned. For example, if Tiya worked one hour, x would be 1. As she earns 7 dollars per hour, she would earn 7 dollars (1*7), which is y. Therefore, one ordered pair could be (1, 7). Two hours would give Tiya 14 dollars, so we have another pair of (2, 14). Three hours would give Tiya 21 dollars, so we have (3, 21). We can do that for any numbers.
Part C) With every hour, Tiya earns 7 dollars. In order to find y, which is the amount of money totally earned, we multiply x by 7 (7 dollars per hour). Therefore, y = 7x.
The variables are:
x = number of hours that she worksy = how much she gets paid.And the proportional relation that relates them is:
y = $7*X
How to define variables?
The only information that we know is that Tiya earns $7 per hour, so the only variables that we can use are money and time.
The independent variable will be time, because she can decide how much time can she work. The dependent variable is money, because how much she earns depends on how many hours she works.
How to get ordered pairs?The ordered pairs are of the form (number of hours, money).
Some examples for this case are:
(0 hours, $0)(1 hour, $7)(2 hours, $14).How to get the equation?We define the variables.
x = number of hours that she worksy = how much she gets paid.Because she wins $7 per hour, the proportional equation will be:
y = $7*x
If you want to learn more about proportional equations, you can read:
https://brainly.com/question/12242745
The window has the shape of a kite. How many square meters of glass were used to make the window?
Answer:
1568cm²
Step-by-step explanation:
28cm + 28cm = 56cm
35cm + 21cm = 56cm
56 × 56 = 3136cm²
3136cm² ÷ 2 = 1568cm²
can someone please help? will give brainliest
Answer:
Step-by-step explanation:
128 * [tex]\frac{5}{8}[/tex] = 80
Answer:
80
Step-by-step explanation:
let's look at the probability. There is a 5/8 chance of the spinner landing on an odd number. you would multiply the 128 by 5/8 to get your estimate of 80 times the spinner will land on an odd number. Hope this helps! :)
A video store's regular price of a video is $25.95, and
it's on sale for 25% off. What is the sale price of the video?
A) $19.46
B) $25.75
C) $6.49
D) $32.44
Answer:6.49
Step-by-step explanation:Discount = Original Price x Discount %/100
Discount = 25.95 × 25/100
Discount = 25.95 x 0.25
You save = $6.49
HELP ME PLWASE I WILL GIVE ALL POINTS.
What value of x makes this equation true?
0.6x + 7 = 0.1x -8
Answer:
-30
Step-by-step explanation:
0.6x+7=0.1x-8
0.6x-0.1x=-8-7
0.5x=-15
x=-15/0.5
x=-30
The deli at the local grocery store sells chicken for $3.80 per pound, beef for $3.50 per pound, and salami for $2.90 per pound. Write an expression that shows how much it will cost to buy c pounds of chicken, b pounds of beef, and s pounds of salami.
Write an expression that shows how much it will cost to buy c pounds of chicken, b pounds of beef and s pounds of salami
Then, find the cost for 1 pound of chicken, 1.8 pounds of beef, and 3.2 pounds of salami.
The cost of 1 pound of chicken, 1.8 pounds of beef, and 3.2 pounds of salami is $_
Answer:3.8c+3.5b+2.9s=total cost 19.38$
Step-by-step explanation:
PLEASE HELP WITH THIS I FEEL SO EMBARRASSED BECAUSE I HAVE TO STAY AFTER CLASS AND DO THIS
ILL GIVE BRAINLY
For most questions asking for the area of a part of a figure, you first have to find the area of the figure then divide to get the part. Because the water level is 2/3 up, we can divide by 3 and that would make it the needed 1/3.
Volume of a rectangular prism: L*W*H
3 3/4 * 3 3/8 * 13 1/3
Becomes
168 3/4
Then divide by 3
56 1/4
or
56.25
Answer:
v = 56.25ft³
Step-by-step explanation:
Total volume
v = 3 3/4 * 13 1/3 * 3 3/8
v = 15/4 * 40/3 * 27/8
v = 16200 / 96
1/3 without water
v = (16200 / 96) * (1/3)
v = 16200 / 288
v = 56.25ft³
BRANLIEST TO CORRECT PERSON.. plss help!
Answer:
C
Step-by-step explanation:
When the expression has an equal sign there is only one solution
6x = 150
* divide each side by 6 *
6x / 6 = x
150 / 6 = 25
we're left with x = 25
The answer would be C, because the dot is in between 24 and 26 which would be 25 and x equals 25
I’ll mark brainlest
Answer:
2, 4
Step-by-step explanation:
round off to the nearest 1000
544
4321
10675
544 = 1000
4321 = 4000
10675 = 11000
I hope I helped! :)
544:1000
4321:4000
10675:11000
Find the height of a rectangular pyramid with a length of 15.8 meters, a width of 9.2 meters, and a volume of 1235.56 cubic meters
Which elements present the whole? a. percentage b. base c. rate d. both a and b
1. Base presents the whole number
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