Answer:
7/10 or 0.7
Step-by-step explanation:
hope it helps
Suppose a normal distribution has a mean of 50 and a standard deviation of
5. What is the probability that a data value is between 48 and 52? Round your
answer to the nearest tenth of a percent.
Answer:
27.8% I think
Step-by-step explanation:
Then standardize the two scores
48 and 52
to be able to consult the table.
The formula for changing a raw score x into a z score is
Z=X−μσ.
For this problem, X is normal with
μ=50 and σ=5.
So, by symmetry of the standard normal curve,
P(48<X<52)
=P(48−50<X−50<52−50)
=P(48−505<X−505<52−505)
=P(−25<Z<25)
=P(−.40<Z<.40)
=P(Z<.40)−P(Z<−.40)
=P(Z<.40)−P(Z>.40)
=P(Z<.40)−(1−P(Z<.40))
=2P(Z<.40)−1
=2(.6554)−1
=1.3108−1
=.3108≈.31
=31%.
help me and please tell me how did you get the answer
Answer:
The sum is 10
Step-by-step explanation:
Given: 2 1/2 + 2 1/2 + 2 1/2 + 2 1/2
Rewrite: 4(2 1/2)
Make fraction improper: 4(5/2)
Distribute: 20/2
Simplify: 10
I dont understand this got a test tomorrow someone please help
Answer:
14*6=18 or add them
Step-by-step explanation:
its either multiply or add them together
Help me if u can if you can it’s fine but plz help me if u can I would really appreciate it
Answer:
you are right click on 32 °
1. If 3X + Y =P and X+Y=Q, what is X in terms of P and Q?
'is' means =
so
X =
so
3X + Y = P
3X = P - Y
X = (P - Y) ÷ 3
PLEASE HELP ME THIS IS URGENT
Split this figure out. Find the area of the square, as well as the rectangle.
First, the square
A= 4 x 3
A= 12 ft^2
Therefore, the square has an area of 12ft^2.
Then, the rectangle.
We must first find the length of the unknown side.
We have two measurements of 3ft on each side, as well as the middle measurement of 4ft.
So,
3+3+4=10
Now, find the area.
A= 2 x 10
A=20ft^2
Add the areas.
20+12=32ft^2
Therefore, the area of the figure is 32ft^2.
I hope this is correct. Best of luck.
A = 10r + 2
what is the value of A if r=3?
12
15
32
105
No links please
Lines L and M are parallel find the measure of angle 7
9514 1404 393
Answer:
∠7 = 142°
Step-by-step explanation:
Angle 7 and the one marked 38° form a linear pair. The fact that line L exists and is parallel to line M is irrelevant to this question. Angles of a linear pair are supplementary, so ...
∠7 = 180° -38° = 142°
_____
Additional comment
Because lines L and M are parallel, all of the obtuse angles in this geometry have the same measure as angle 7. Likewise, all of the acute angles are congruent to 38°.
∠1 = ∠3 = ∠5 = ∠7 = 142°
∠2 = ∠4 = ∠6 = 38°
can someone help me with this???
Answer:
it's 47 degree answer of your question
Which is equivalent to 1/2? Select all that apply
Answer:
options man?
Step-by-step explanation:
1/2 = 2/4 = 3/6 = 4/8 = 5/10 = 6/12 = 7/14 = 8/16 = 9/18 = 10/20 = 11/22 = 12/24
1/2 = 25/50 = 50/100 = 100/200 = 150/300 = 200/400 = 250/500
Answer:
a sin 30
Step-by-step explanation:
i just need more points
Select the correct answer. Each of the four angles of a quadrilateral measures 90°. How many rectangles can you construct using this condition? OA OB 1 OC 2 OD. OE infinitely many
Answer:
he defenition of a rectangle is that it has 4 angles that measure 90 degrees
ther are infinite legnths and inifinite numbers
intinite side legnths so infinite number of unique rectanglesStep-by-step explanation:
Point F is on line CD. Find the measure of angle CFE. Show your work.
Answer:
CFD = 180
EFD= 152
180-152= 28
CFE= 28
Step-by-step explanation:
Help it’s literally 2AM
Answer:
10
Step-by-step explanation:
4x+8+3x+12=90
x=10
this is the solution hope it's helpful
plz help asap.. I have no clue how to do this.
Answer:
Tn=a + (n-1)d
a= first term = 14
n= This is the term you're looking for... In this case... That's the 73rd term
d=Common difference (since its an AP)
d= second term - first term -- Or 3rd term - 2nd term = 23-14
d=9
T = 14 + (73-1)9
T= 14 + (72)9
T= 14 + 648
T=662.
The 73rd term would be 662.
1 term is +9
10 terms is +90
90x7=630
9x2=18
630+18=648
648+14=662
please help please please please
Answer:
826 feet,
Step-by-step explanation:
Difference = 648 - (-178)
= 648 + 178
= 826.
Please help. Any tips appreciated. I have no clue how to complete this please
=============================================================
Explanation:
A full circle is 360 degrees. The pie slices shown represent the various angles of each slice. Each angle expression in that diagram will add up to 360.
Doing this will help us solve for x.
(angleVQR)+(angleRQS)+(angleSQT)+(angleTQU)+(angleUQV) = 360
(21x+4) + (14x-4) + (5x+5) + (5x+5) + (80) = 360
45x+90 = 360
45x = 360-90 ... subtract 90 from both sides
45x = 270
x = 270/45 ..... divide both sides by 45
x = 6
We'll then plug this x value into the angle expression for angle TQU
angle TQU = 5x+5
angle TQU = 5*6+5
angle TQU = 35 degrees
----------
Extra info:
angle VQR = 130 degreesangle RQS = 80 degrees (same as angle UQV)angle SQT = 35 degrees (same as angle TQU)Starting at angle VQR, and working clockwise, the five angles are: 130, 80, 35, 35, 80. Note that 130+80+35+35+80 = 360.The October 31 bank statement of the Stover Co. indicated a balance of $6,151.11. Stover’s checkbook reflected a balance of $2,160.14. Stover Co.’s bookkeeper found that the bank had collected a note for $1,389.25. A deposit, in the amount of $2,837.77, made in the afternoon of October 31 had not been credited to their account. Checks totaling $5,545.09 had not yet been presented for payment and there was a charge of $105.60 for printed checks. What was their reconciled balance? $4,433.79 $3,447.39 $3,443.79 $3,443.97
Answer:
$3,443.79
Step-by-step explanation:
Mark as Brainliest
Answer:
$3,443.79
Step-by-step explanation:
Add for adding money
Subtract for collecting/spending money.
Which number sentences are modeled by the tape diagram? Select the two correct answers. 1 O = } + + + + +++ 0+ 를 0= 5x = 5x.
Answer:
Explain more i cant understand
HELP MEEE!!! Will make brainlyist if right!!
Answer:
238 degrees
Step-by-step explanation:
Whole circle measures 360 degrees.
Subtract 122 degrees from the whole circle to get 238 degrees.
Suppose that AB and EF are corresponding sides of similar triangles. If AB=2 and the scale factor is 5, what is EF?
Answer:
EF=10
Step-by-step explanation:
If they are corresponding,
AB = 2 x Scale factor of 5 = 10
What is the area surface of a cylinder 11x8
Answer:
400.7 cm^3
Step-by-step explanation:
4.
Match the graph with its equation.
A. y = 3
B. y = –3
C. x = –3
D. x = 3
Answer:
D. x = 3
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope: Undefined
y-intercept: No y-intercept
x
y
3
0
3
1
how many vertices does this shape have? (Multiple choice)
Answer:
10
Step-by-step explanation:
Mr. Roy is scheduled to work less than 18 hours this week. He all ready work 7 hours.If x is the remaining number of hours Mr. Roy could work this week, which inequalities represent the number of remaining hours Mr.Roy could be scheduled to work this week ? Select all that apply
A. x+7>18
B. x+7 <18
C.x+18>7
D X>11
E x <11
Answer:
B and E
Step-by-step explanation:
what is the image of the point (4,-8) after a rotation of 270 degrees counterclockwise about the orgin
Answer:
(-8,-4)
Step-by-step explanation:
(y,-x)
The Park protectors is a group of elementary students and teachers from 30 to school to pick up trash at local parks. Line plot shows a tons of trash they picked up this year There are 32 scores in a group how much trash did the school pick up this year?
Answer: like 1.875 I think
Answer:
Step-by-step explanation:1.875
HELP DUE IN 15 MINS!
x = ??
Answer:
2Step-by-step explanation:
Use intersecting chords theorem:
5(5x + 2) = 10(6)5x + 2 = 125x = 10x = 2What two integers have a sum of -19 and a product of 84?
-7 x -12
7x12=84
7+12=19
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.
Answer:
I believe it is D
Step-by-step explanation:
We can first multiply the 2 and 4 together to get 8.
Wow we already eliminated A.
When you have negative powers, you can just replace it with their inverse and turn the power positive.
For example, 2 to the power of -3 (2 ^ -3) can be replaced by 1/2 to the power of 3 (1/2^-3).
So we now have 8 (x^4 / yx^2
We can then just subtract the x's power of 2, because when dividing exponents with the same variable or base, we can just subtract them.
For example, x^5 divided by x ^ 2 has the same base/ variable of x, and you can subtract the 5 by 2 to get x^3.
So we have 8 ( x^2y)
So 8x^2 y
D.
When Camden runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard deviation of 1.5 seconds. Using the empirical rule, determine the interval of times that represents the middle 68% of his finishing times in the 400 meter race.
Answer:
63.5, 66.5
Step-by-step explanation:
Approximately 68% of Camden's finishing times fall within the interval from 63.5 seconds to 66.5 seconds.
What is the empirical rule?The empirical rule states that for a normal distribution, approximately 68% of the data lies within one standard deviation of the mean, approximately 95% of the data lies within two standard deviations of the mean, and approximately 99.7% of the data lies within three standard deviations of the mean.
Since we want to find the interval that represents the middle 68% of Camden's finishing times, we need to find the range of times that are one standard deviation above and below the mean.
The mean of Camden's finishing times is 65 seconds, and the standard deviation is 1.5 seconds, so the interval that represents the middle 68% of his finishing times is:
[65 - 1.5, 65 + 1.5] = [63.5, 66.5] seconds
This means that approximately 68% of Camden's finishing times fall within the interval from 63.5 seconds to 66.5 seconds.
Learn more about the empirical rules here:
brainly.com/question/27914019
#SPJ2