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Related Questions
A computer technician notes that 40% of computers fail because of the hard drive. If he repairs many computers a day, what is the probability that the first computer that has failed due to the hard drive is his 4th computer of the day?
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Answer:
(B) 0.0864
Step-by-step explanation:
Correct on Edge
PLEASE HELP !! ILL GIVE BRAINLIEST !!
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Answer:the first one opn and qps
Step-by-step explanation:
Can someone please help me with this question
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Answer:
volume= 186ft
Step-by-step explanation:
1
There are 31 students in a class.
14 of the students are female.
Find the percentage of the class that are female.
Give your answer to the nearest percent.
Effect
aths
Answers
Answer:
45.16%
Step-by-step explanation:
31 students is 100%
so, 14x100/31=45.16
What is the volume of the solid generated when the region in the first quadrant bounded by the graph of y=x^3, the x-axis, and the vertical line x=2 is revolved about the x-axis?
Show work.
A
[tex]4[/tex]
B
[tex] \frac{128}{7} [/tex]
C
[tex]4\pi[/tex]
D
[tex] \frac{128\pi}{7} [/tex]
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Answer:
The first thing we need to do is to find the area bounded by:
y = x^3
y = 0
between:
x = 0 and x = 2
This is the integral of the given function between x = 0 and x = 2, written as:
[tex]\int\limits^2_0 {x^3} \, dx = \frac{2^4}{4} - \frac{0^4}{4} = 2^2 = 4[/tex]
This means that the area of the bounded region is 4 square units.
Now, if we do a full rotation around the x-axis, the volume generated will be equal to the area that we obtained times 2*pi units.
The volume is:
V = (4 square units)*(2*pi units) = 8*pi cubic units.
(Notice that no option coincides with this, there may be a mistake in the options)
"Petra is making donuts by stamping circles in dough using a pastry stamp with a radius of 1.5 inches. For the donut hole, she stamps out a circle of dough using a pastry stamp with a radius of 0.5 inches." What is the area of the donut hole? Use 3.14 for . *
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Answer:
6.28
Step-by-step explanation:
[tex](3.14)(1.5) {}^{2} = 7.065 [/tex]
[tex](3.14)(0.5) {}^{2} = 0.785[/tex]
[tex]7.065 - 0.785 = 6.28[/tex]
A professor compares the number of students at his school majoring in statistics, engineering, both, or neither.
How many items are in the sample space for a student at his school?
A. 1
B. 2
C. 3
D. 4
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Answer:
Step-by-step explanation:
3
Of all the registered automobiles in a city, 8% fail the emissions test. Eleven automobiles are selected at random to undergo an emissions test. Round the answers to at least four decimal places. Part 1 of 4 (a) Find the probability that exactly three of them fail the test. The probability that exactly three of them fail the test is . Part 2 of 4 (b) Find the probability that fewer than three of them fail the test. The probability that fewer than three of them fail the test is
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Answer:
Step-by-step explanation:
Please help I’ll mark you as brainliest if correct
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Answer:
190.5 Centimeters.
Step-by-step explanation:
Brainliest pls?
Help me pls I’m stuck
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Answer: 44
Step-by-step explanation:
<R is an inscribed Angle- so if we follow it's ends to the intercepted Arc we are looking at arc NQ
the intercepted arc is 2 times the measure of the inscribed angle, so arc NQ is 44 (22*2)
<O has the same measure as the arc NQ so angle O is 44
4. Find the value of x.
Can you pls show work thank you for your time
Answers
Answer:
x= 12
Step-by-step explanation:
11x+2=134
-2 -2
_________
11x = 132
__ ___
11 11
x=12
The differnce in price in colerd pencils and mechanical pencils is $0.20. If I purchased 18 colord pencils and 22 mechanical pencils for $27.60, what is the cost of the mechical pencil
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Answer: Mechanical Pencils are $0.60
Colored Pencils are $0.80
Step-by-step explanation:
18c+22m=27.60
c-m=.20
+m +m
so c= .20+m
Susitituete 18(.20+m)+22m=27.60
3.6+18m +22m=27.60
40m=27.60
40m=24
m=.60
c=.20+(.60)
c=.80
..................................... help pls
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Answer:
A
Step-by-step explanation:
A is the height since it shows the dotted line from top to bottom and B and C are slanted.
Answer:
Option AIs correspond line
two friends bought a strip of tickets for the school carnival. Arlo used 5/6 of his tickets. jayson used 6/6 of his tickets.
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::::::::::::::::::::
Answer:
total number of tickets bought: 12
total number of tickets used: 11
Jayson used 1 more ticket than Arlo
Step-by-step explanation:
Erm, I don't know what you want answered, but here's some basics:
So to find how many total tickets were bought, we just have to add both of the strips together:
6 + 6 = 12
So the total number of tickets bought was 12.
To find the amount of ticket used, you have to add the top numbers together:
5 + 6 = 11
So the total number of tickets used is 11.
If you wanted to find how many more tickets Jayson used than Arlo, you'd have to subtract Arlo's tickets from Jayson's:
6 - 5 = 1
So Jayson used 1 more ticket than Arlo.
Sorry I couldn't have been more of a help:/
simplify 3^2 times 3^5
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Answer:
the answer is =2187
Step-by-step explanation:
hoped I helped:)
An angle measures 59 degrees what is the measure of its supplement
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Answer:
add up to 90 degree
Step-by-step explanation:
Use slopes and y-intercepts to determine if the lines −4x+4y=−1 and 4x+4y=−1 are parallel.
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Answer:
Nope they are not parallel.
Step-by-step explanation:
first find the slope of each equation.
-4x+4y= -1
4y= 4x -1
y= (4x-1)/4
y=x - 1/4
the other equation
4x +4y = -1
4y= -4x -1
y= (-4x-1)/4
y= -x -1/4
the slope is the number in front of the x so for the first equation, it is 1 and the second equation it is -1. Since they are not the same, they are not parallel but instead is perpendicular. TBH, just stop here as this is more than enough.
In certain parts of the world tuberculosis (a very treatable and curable illness) is present in 25% of the people. If a simple chest X-ray can be used as a diagnostic tool with an accuracy of 99% detection of TB if it is present. Only in 0.5% of the cases, normal people get a positive diagnosis. 2 If a person is selected at random and the diagnosis is positive, what is the probability that the person is actually infected.
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Answer:
0.9851 = 98.51% probability that the person is actually infected.
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Positive test
Event B: Infected
Probability of a positive test:
99% of 25%(People have the disease).
0.5% of 100 - 25 = 75%(People do not have the disease). So
[tex]P(A) = 0.99*0.25 + 0.005*0.75 = 0.25125[/tex]
Probability of a positive test and being infected:
99% of 25%, so:
[tex]P(A \cap B) = 0.99*0.25 = 0.2475[/tex]
What is the probability that the person is actually infected?
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.2475}{0.25125} = 0.9851[/tex]
0.9851 = 98.51% probability that the person is actually infected.
PLS ANSWER IT QUCK PLS PLS PLS PLS PLS
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Answer:
87 !
Step-by-step explanation:
An example of an ordered pair is (1, 5). True or False
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Answer:
yes
Step-by-step explanation:
Explanation: true
Please help me with this
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Answer: you should study, plus give me brainliest please. lol
Step-by-step explanation:
and the other answer might be a bot sending links to websites with malware, please dont .open the link unless you want malware on your device, if its fake. and you cant make websites/ links just to post answers. this is a warning.
The product is 2 2/3 + 4 4/5
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Answer:
[tex]7\frac{7}{15}[/tex]
Step-by-step explanation:
Mark as Brainllest plz
5.) Find the square root. *
25
49
Need help plz?
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Answer:
5 and 7 because they are perfect squares
Answer:
Step-by-step explanation:
Take the square roots of the numerator and denominator separately.
What is the total surface area of the triangular prism shown?
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Answer:
64
Step-by-step explanation:
Answer: 192
Step-by-step explanation:
Find the median for the data set. 1, 1, 2, 6, 3, 1, 6, 6, 3
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The number of hours it takes to mow nine lawns is inversely proportional to the number of gardeners. It takes three gardeners four hours to mow nine lawns. How many hours would it take one gardener to mow the same nine lawns?
Please answer quickly!
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Answer:
I believe it would take 12 hours
please answer fast!!
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Answer:
x=70
Step-by-step explanation:
[tex]2x + 1 = 141 \\ 2x = 140 \\ x = 70[/tex]
Answer:
x=70
Step-by-step explanation:
I hope i was right have a good day!!
A card is randomly selected from a deck of playing cards. Find the probability that it is a face card, given that a black card is drawn.
A. 3/13
B. 6/26
C. 26/52
D. 1/2
Answers
Answer 3/13
Step-by-step explanation:
There are 12 face cards, and 6 are black. Thus, the probability of choosing one would be 6/26, or 3/13
Please help me with this math problem.
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Answer:
The table is a quadratic function
Step-by-step explanation:
Given
The attached table
Required
Tell if it is a quadratic function
The difference in the x values are uniform (i.e. difference of 1), so the following method can be applied.
(1) Subtract adjacent y values.
[tex]d_1=2 - 16 = -14[/tex]
[tex]d_2=-2 - 2 = -4[/tex]
[tex]d_3 = 4--2 = 6[/tex]
[tex]d_4 = 20 - 4 = 16[/tex]
(2) Subtract adjacent differences in (1) above
[tex]d_5 = d_2 - d_1 = -4 --14 = 10[/tex]
[tex]d_6 = d_3 - d_2 = 6 --4 = 10[/tex]
[tex]d_7 = d_4 - d_3 = 16 -6 = 10[/tex]
Notice the calculated differences in (2) are the same.
Hence, the table is a quadratic function
what is the range of g?