Answer: .0142%
Step-by-step explanation:
The probability that Justin passes his final exam is 0.0147%
How to determine the probability?The given parameters are:
Questions, n = 20Pass mark, x = 25Number of options = 3Only one of the options can be correct.
So, the probability that he answers a question correctly is:
p = 1/3
To get a pass mark of 75, he must score at least 15.
So, the probability is represented using:
P(x >= 15) = P(15) + P(16) + ..... + P(20)
Each probability is calculated using:
[tex]P(x) = ^nC_r * p^x *(1 -p)^{n - x}[/tex]
Using the above formula, we have:
P(15) = 0.00012546624
P(16) = 0.0000193115
P(17) = 0.00000223803
P(18) < 0.000001
P(19) < 0.000001
P(20) < 0.000001
When the above probabilities are added, we have:
P(x >= 15) = 0.00014720925
Express as percentage
P(x >= 15) = 0.014720925%
Approximate
P(x >= 15) = 0.0147%
Hence, the probability that Justin passes is 0.0147%
Read more about probability at:
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How to find Surface Area & Volume of Cylinder???
please help......
Answer:
A cylinder's volume is π r² h, and its surface area is 2π r h + 2π r².
Which of the following values are solutions to the inequality -8+2x> 5?−8+2x>5?
Answer:
-8+2x is less than 5 and - 8+2x is less than 5
can you please answer this?
Answer:
all real numbers i think
Step-by-step explanation:
help please and thanks
Answer:
Sige los puntos hi llegarás al final
Step-by-step explanation:
Sólo sige
In ΔQRS, q = 6.8 inches, r = 1.9 inches and ∠S = 141° . Find the length of s, to the nearest 10th of an inch
c = 141 s =
150 inch
What is the measure of arc AB
Answer:
AB should be 142
Step-by-step explanation:
the circle whole is 360 half is 180. Line segment BD is half so you need to subtract the 38 from 180 to get your answer of 142
Hey May I Ask Whats The Rule Of This Number
Answer:
add 4x1, then 4x2, then 4x4, then 4x8, etc
Step-by-step explanation:
Find the measure of angle A
Pls help
Step-by-step explanation:
x+85+x+44+63=180(sum of angles of a triangle)
or,2x+192=180
or,2x=180-192
or,x=-12
Angle A=x+44
=-12+44
=32°
Give brainliest plse .
-1
W
Which is the correct graph of y = x2?
a.
c.
5
4.
2
3
1-
2
+
1
-S
4
-2
1
--
2
3
4
S
1
3
X
-3
tor
-S
b.
5
d.
Ty
4
3
Answer:
Step-by-step explanation:
In the graph of y = x2, the point (0, 0) is called the vertex. The vertex is the minimum point in a parabola that opens upward. In a parabola that opens downward, the vertex is the maximum point. We can graph a parabola with a different vertex.
Maths ACSF
1.5 m
2500 mm
850
4.8m
whats the total length
Answer:
Step-by-step explanation:
1.5m
(2500mm)/(1000 mm/m) = 2.5m
(850mm)/(1000 mm/m) = 0.85m
4.8m
Add the number of meters:
1.5 + 2.5 + 0.85 + 4.8 = 9.65m
We have the given measurements 1.5 m, 2500 mm, 850, 4.8m. Therefore, the total length would be 9.65m.
How to convert a millimeter into a meter?One meter is equal to 1000 millimeters. So, to convert one millimeter into a meter we have to divide by 1000.
We have the given measurements 1.5 m, 2500 mm, 850, 4.8m
To convert a millimeter into a meter
2500 mm
= (2500mm)/(1000 mm/m)
= 2.5m
850mm
(850mm)/(1000 mm/m)
= 0.85m
Add the number of meters:
= 1.5 + 2.5 + 0.85 + 4.8
= 9.65m
Therefore, the total length would be 9.65m.
Learn more about multiplications;
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This is an isosceles trapezoid.
R.
s
75
X
Y У
T
U
Answer:
S=R
75+75=150
360-150=210
210/2=105
y=105
Answer:
y = 105°
Step-by-step explanation:
In an isosceles trapezoid.
Any lower base angle is supplementary to any upper base angle, that is
y = 180° - 75° = 105°
Adriyana wants to determine the difference quotient
of p(x) = x3 + x.
She writes the following first few steps.
p(x + h)
= (x + h)3 + (x + h)
= x3 + 3x2h + 3xh2 + h3 + x + h
StartFraction p (x + h) minus p (x) Over h EndFraction = StartFraction (x cubed + 3 x squared h + 3 x h squared + h cubed + x + h) minus (x cubed + x) Over h EndFraction
What is the simplified expression for the difference quotient for all nonzero values of h?
3x2 + 3xh + h2
3x2 + 3xh + h2 + 1
3x2 + 3xh + h2 + h
3x2 + 3xh + h2 + 2x + 1
Answer:
The answer is B
Step-by-step explanation:
The simplified expression for the difference quotient for all nonzero values of h is 3x² + 3xh + h² + 1 option (B) is correct.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
It is given that:
The function is:
p(x) = x³ + x
The difference quotient of the function:
p(x + h) = (x + h)³ + (x + h)
The difference quotient of the function:
= [((x + h)³ + (x + h)) - (x³ + x)]/h
= [x³ + 3x²h + 3xh² + h³ + x + h - x³ - x]/h
= [3x²h + 2xh² + h³ + h]/h
= 3x² + 3xh + h² + 1
Thus, the simplified expression for the difference quotient for all nonzero values of h is 3x² + 3xh + h² + 1 option (B) is correct.
Learn more about the function here:
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you're having a bbq this weekend, and you're in charge of hamburger meat. right now there is a sale where you can buy 5 pounds of meat for $10. At this rate how much meat could you buy for $30
Answer:
15 pounds
Step-by-step explanation:
we can set up a proportion:
5/10=x/30
solve for x:
5/10=x/30
10x=150
x=15
(or you could've done 5*3=15 since $30/$10=3)
Dr. Gavin is conducting a 2 x 4 independent-groups factorial design. Assuming he wants 25 people in each cell, how many participants does Dr. Gavin need to recruit
Answer:
Dr. Gavin needs to recruit 200 participants.
Step-by-step explanation:
Dr. Gavin is conducting a 2 x 4 independent-groups factorial design.
This means that there will be 2*4 = 8 cells.
Assuming he wants 25 people in each cell, how many participants does Dr. Gavin need to recruit?
25 people in each cell, 8 cells. So
25*8 = 200
Dr. Gavin needs to recruit 200 participants.
CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEMS I would really appreciate it
Answer:
I would love to help but can you zoom in on the question I can't really read it
Step-by-step explanation:
Select the graph of y= sin x.
Because it contains the points (0, 0) and (pi/2, 1), the first graph is the graph of sin(x).
Which graph is the graph of sin(x)?To identify the graph of sin(x), we need to remember some points of the sine function.
We know that sin(0) = 0, this means that this passes through the point (0, 0).
And we also know that sin(pi/2) = 1, then it also passes through the point (pi/2, 1).
With that in mind, the graph that passes through those two points is the first one, so that is the correct option.
If you want to learn more about the sine function:
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Answer:
A.
Step-by-step explanation:
Believe me! I got it right on the program!
What is the area of the polygon
the height of a house having three rooms of the dimensional 9 feet into 12 feet 14 feet into 16 feet and 12 feet into 14 feet respectively is 90 Feet what will be the amount required to paint on all was from inside at the rate of 160 per square feet
Answer:
Amount required = 2,217,600
Step-by-step explanation:
Dimensions of the rooms are as follows;
Room 1; 9 feet × 12 feet
Room 2; 14 ft × 16 ft
Room 3; 12 ft × 14 ft
Perimeter of rooms;
P1 = 2(9 + 12) = 42 ft
P2 = 2(14 + 16) = 60 ft
P3 = 2(12 + 14) = 52 ft
Total perimeter; P = 42 + 60 + 52 = 154 ft
Height is 90 ft.
Thus, total area is;
A = 154 × 90
A = 13860 ft²
Rate of painting is 160 per Sq.ft.
Thus amount to paint entire area = 160 × 13860 = 2217600
PSYCHOLOGY/SOCIOLOGY
Does anybody know the answer to any of these? Will mark BRAINIEST
Answer:
1. A
2. B
3. C
Step-by-step explanation:
......................
Find the volume of the composite figure.
3 ft
2 ft
2 ft
6 ft
5 ft
The volume of the composite figure is
cubic feet.
Answer:
360
Step-by-step explanation:
Find the value of x. Then tell whether the side lengths form a Pythagorean triple.
10, 6
To Find :
The value of x.
Solution :
Applying Pythagoras's theorem by assuming 10 is the biggest side, we get :
[tex]6^2 + x^2 = 10^2\\\\x = \sqrt{100 - 36}\\\\x = \sqrt{64}\\\\x = 8[/tex]
Therefore, the value of x is 8 .
how many zeros does the polynomial function y=(x+4)(x-2)^2(x+7)
Which of the following shows the inverse of {(0, 4), (5, -2), (-1, 8), (2, 5)}?
A:{(0, -4), (5, 2), (-1, -8), (2, -5)}
B:{(4, 0), (-2, 5), (8, -1), (5, 2)}
C:{(0, -4), (-5, 2), (1, -8), (-2, -5)}
D:{(0, 4), (-5, -2), (1, 8), (-2, 5)}
9514 1404 393
Answer:
B: {(4, 0), (-2, 5), (8, -1), (5, 2)}
Step-by-step explanation:
The inverse relation has the input and output swapped:
relation: (0, 4)
inverse relation: (4, 0)
You can identify the correct answer choice using just the first ordered pair. The inverse relation is ...
{(4, 0), (-2, 5), (8, -1), (5, 2)}
PLEASEE GIVE AN EXPLANATION TO THIS
Answer:
C.
Step-by-step explanation:
The numbers in the front will be the first number and the ones behind it will be the second number.
So the numbers are 79,82,82,83,86,90,91,93,94 and 97
Then you want to add the lowest number and the greatest number which is 79 and 97
equals to 176
Does anyone know this
Answer:
The scale factor is greater than 1
Step-by-step explanation:
HELP SOON PLSSSSS FOR BOTH QUESTIONS
9514 1404 393
Answer:
2) 54 units
3) 2770 square units
Step-by-step explanation:
2) The perimeter is the sum of the lengths of the sides of the figure. The sum of the lengths of the horizontal segments is 2×16 = 32 units. All but one of the lengths of the vertical segments are given. The missing one is the inside segment on the left side, which is 9 - (6 -2) = 5 units. Then the sum of vertical segment lengths is 9 +5 +2 +6 = 22 units. The total perimeter is ...
P = 32 units + 22 units = 54 units
__
3) The centerline of the green region is 60×2 units plus the circumference of a circle 50 units in diameter. That centerline length is ...
60×2 +50×3.14 = 120 +157 = 277 . . . units
The width of the region is 10 units, so the total area of the green region is ...
A = LW = (277 units)(10 units) = 2770 square units
If somebody keeps on trying to take something from you and u tell them to quit or youll punch them should u actually do it? first gets brainliest
Answer:
yes
Step-by-step explanation:
List the temperatures in order from hottest to
coldest. (6.2D)
( 6°F , 8°F, -10°F, 30F, 0°F, -13°F)
A. B,D,A,E,C
B. B,C,D,A,E
C. C,D,A,B,E
D. C,A,D,B,E
9514 1404 393
Answer:
C. C,D,A,B,E
Step-by-step explanation:
The first set of coordinates, (-3, 4) and (3, 4) are on the horizontal line y=4. The distance between them is the difference of their x-values: 3 -(-3) = 6. This is the third distance on the list, so 'A' will be 3rd in the sequence of matching.
Choices A and C have 'A' listed 3rd.
__
The second set of coordinates (-5, 3) and (-5, 11) are on the vertical line x=-5. The distance between them is the difference of their y-values: 11 -3 = 8. This is the 4th distance on the list, so 'B' will be 4th in the sequence of matching.
Choice C has 'B' listed 4th.
The appropriate sequence of matching is ...
C, D, A, B, E
_____
Additional comment
In this problem, as in most multiple-choice problems, it isn't necessary to find the complete answer. It is only necessary to find enough of the answer to determine the correct choice among those offered. You do need to know enough about how to work the problem to be able to tell a correct choice from an incorrect one. Knowing the required relationships is useful; slogging through the arithmetic is often not necessary.
Answer:
C. C,D,A,B,E
Step-by-step explanation:
What is (+8) – (-3)?