Answers
Answer:
y = 17/7
Step-by-step explanation:
Related Questions
70%of it is 14 min find the valy ofx
Answers
Note:
Your questions sound a little unclear.
But, I am assuming your questions as:
''70% of x is 14 min. Find the value of x''.
So, I will solve assuming this statement which anyways would clear your concept.
Answer:
The value of x = 20.
Step-by-step explanation:
Given
''70% of x is 14 min. Find the value of x''.
Thus,
70% of x = 14
70/100 × x = 14
0.7x = 14
divide both sides by 0.7
0.7x/0.7 = 14/0.7
x = 20
Therefore, we conclude that the value of x = 20.
Automobile engines and transmissions are produced on assembly lines, and are inspected for defects after they come off their assembly lines. Those with defects are repaired. Let X represent the number of engines, and Y the number of transmissions that require repairs in a one-hour time interval. The joint probability mass function of X and Y is as follows: y x 0 1 2 3 0 0.13 0.10 0.07 0.03 1 0.12 0.16 0.08 0.04 2 0.02 0.06 0.08 0.04 3 0.01 0.02 0.02 0.02 Find the marginal probability mass function of X. Round the answers to two decimal places. pX(0) pX(1) pX(2) pX(3)
Answers
Answer:
[tex]\begin\\\begin{tabular}{|l|l|l|l|l|l|}x&0&1&2&4&Sum\\P(x)&0.33&0.40&0.20&0.07&1.00\end[/tex]
Step-by-step explanation:
From the question we are given the table
[tex]\begin\\\begin{tabular}{|l|l|l|l|l|} &&y \\x &0&1&2&3\\0 &0.13&0.1&0.07&0.03 \\1&0.12&0.16&0.08&0.04\\ 2&0.02&0.06&0.08&0.04\\ 3&0.01&0.02&0.02&0.02\end[/tex]
Generally the marginal probability mass function of X is mathematically given as
[tex]P(x)=\sum P(x,y)>y[/tex]
[tex]\sum P(0)=0.13+0.1+0.07+0.03=0.33\\\sum P(1)=0.12+0.16+0.08+0.04=0.40\\\sum P(2)=0.02+0.06+0.08+0.04=0.20\\\sum P(3)=0.01+0.02+0.02+0.02=0.07[/tex]
Therefore marginal probability mass function of X
[tex]\begin\\\begin{tabular}{|l|l|l|l|l|l|}x&0&1&2&4&Sum\\P(x)&0.33&0.40&0.20&0.07&1.00\end[/tex]
there are 15 finalist in a singing competition. the top five singers receive prizes. how many ways can the singer finish first through fifth
Answers
Answer:
The singers can finish first through fifth in 360360 ways.
Step-by-step explanation:
The order of the singers is important, because they are ranked by positions. So we use the permutations formula to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
[tex]P_{(n,x)} = \frac{n!}{(n-x)!}[/tex]
In this question:
Top five singers, from 15 finalists. So
[tex]P_{(15,5)} = \frac{15!}{(15-5)!} = 360360[/tex]
The singers can finish first through fifth in 360360 ways.
Given n (x) = 8 [x]+2x+9, answer the following:
Find n(-x).
Answers
Answer:
x=-1
Step-by-step explanation:
Which of the following types of statement cannot be used to explain the
steps of a proof? Check all that apply.
A. Conjecture
B. Guess
OC. Postulate
0 D. Theorem
Answers
Answer:
A. Conjecture
B. Guess
Steps of a proof cannot be explained using A. conjecture and B. guess.
What is Conjecture?Conjectures in mathematics is a term which is given to the situation where something is guessed without any proof or basics.
This may be true, but are not proved up to this day.
Theorems are something which are already proved. This can be used in figuring out the proof of any problems.
Similarly, postulates are something which are the special cases of a certain proof. These can also be used to prove anything in mathemetics.
But guess and conjectures are not already proved statements. So these cannot be used.
Hence the options are Guess and Conjectures.
Learn more about Conjectures here :
https://brainly.com/question/24881803
#SPJ7
a bucket was 2/5 filled with water. a farmer then fills the bucket with another 4/10 more water. what fraction of the bucket is now full?
Answers
Answer:
8/10
Step-by-step explanation:
Simplify the following expression.
10
63
=
O A 18
OB.
1
216
О С.
1
18
1
OD.
216
Answers
Answer:
E X P L A N A T I O N, 3290R + Y = HIFEUDSGRF344TRG
Step-by-step explanation:
B.What is the final price of a $5000 item with a 44% markup?
Answers
Answer:
$7200
Step-by-step explanation:
5000 increase 44% =
5000 × (1 + 44%) = 5000 × (1 + 0.44) = 7200
The area of a triangular church window is 90 square meters. The base of the window is 15 meters. What is the window’s height?
Answers
Answer:
12 is the answer
Step-by-step explanation:
5(3x + 4) + 2x
3(4x-7)-5x
Simplify the expression by distributing and combining like
terms.
Answers
Answer:
1. x= - 20/13
2. 7x-21
Step-by-step explanation:
what happens when you add two even numbers
Answers
Answer:
You get an even number
Step-by-step explanation:
2 + 2= 4
4 + 4= 8
6 + 6= 12
8 + 8 = 16
10 + 10 = 20
etc.
find the area of this parallelogram
13cmx20cm
answer
260
Answers
Answer:
Area = 260 cm²
Step-by-step explanation:
Area of parallelogram = base × height
Base = 20 cm
Height = 13 cm
Plug in the values
Area of parallelogram = 20 × 13
Area = 260 cm²
5 (2x+1) +4 (x+1)=12(x+2)
Answers
Answer:
x=–/-4
Step-by-step explanation:
Let's solve your equation step-by-step.
5(2)(1)+4(x+1)=x+2
Step 1: Simplify both sides of the equation.
5(2)(1)+4(x+1)=x+2
5(2)(1)+(4)(x)+(4)(1)=x+2(Distribute)
10+4x+4=x+2
(4x)+(10+4)=x+2(Combine Like Terms)
4x+14=x+2
4x+14=x+2
Step 2: Subtract x from both sides.
4x+14−x=x+2−x
3x+14=2
Step 3: Subtract 14 from both sides.
3x+14−14=2−14
3x=−12
Step 4: Divide both sides by 3.
3x
3
=
−12
3
x=−4
Answer:
x=−4
7)
Which of the following points would fall on the line produced by the point-slope form equation y - 6 = 7(x + 4) when graphed?
(2, 20)
(-3, 13)
(0, -34)
(-1, 28)
Answers
Answer:
b (-3,13)
Step-by-step explanation:
simplify the equation into slope intercept form (y=mx+b) and then graph it
which expressions are equivalent to 4m+12. Chose all that apply
Answers
Answer:
✔️4(m + 3)
✔️6m - 2m + 12
Step-by-step explanation:
✔️4(m + 3)
4*m +4*3 (distributive property
4m + 12
Therefore, 4(m + 3) = 4m + 12
✔️6m - 2m + 12
4m + 12
Therefore, 6m - 2m + 12 = 4m + 12
✔️3m - m + 12
2m + 12
Therefore, 3m - m + 12 ≠ 4m + 12
✔️4(m + 12)
4*m + 4*12
4m + 48
Therefore, 4(m + 12) ≠ 4m + 12
A store advertises a sale that all items are
marked down 30% or more. A life jacket is
marked down from $68 to a sale price of
$44.20. Is the advertisement true? Explain
why or why not.
Answers
Step-by-step explanation:
true. 30% of 68 is 20.40 if it was 30 percent off it would be 47.60 and it's is 3.40 more off so it is true that it is 30% or more
The radius of a circle is 11 ft. Find the circumference of the circle.
34.54 ft
69.08 ft
17.27 ft
25.14 ft
Answers
Answer:
69.12 ft
Step-by-step explanation:
The formula for circumference of a circle is 2πr
= 2 × 3.142× 11
= 69.12
Hence the circumference of the circle is 69.12 ft
sun of the fraction 1/6 + 1/3 =
Answers
Answer:
.5 or 1/2
Step-by-step explanation:
to do this multiply 1/3 by 2
then it’s 2/6
then both bottoms are equal
then add the tops
your answer is
3/6
then simplify
so now your answer is 1/2
Write a verbal description of the set {3,6,9}
Answers
Answer:
They are each a consecutive multiple of 3 and the highest number is the sum of the two lower numbers.
The higher number is also a square product of the lower number/
Step-by-step explanation:
3, 6. 9
3 = 3 x 1
6 = 3 x 2
9 = 3 x 3
and
3+ 6 = 9
and
3^2 = 9
When glass contains 8 oz how many full glasses are in 78 oz
Answers
The solution to n + 4n – 3n = 16 is _____. 16 2 -2 8
Answers
Answer:
it is 8 i had the same question
Step-by-step explanation:
Answer:
answer is 8
Step-by-step explanation:
Perform the indicated operation.
Answers
Answer:
c
Step-by-step explanation:
12x21/6 pls help ...........................................................
Answers
Answer:
42
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Marist scholars ate a total of 16 bananas for snack. If the 34 kids in Bing-BU each ate a half of a banana for snack, which class ate more total bananas
Answers
Answer:
well 34/2= 17 so the kids in Bing-BU ate more total bananas
Step-by-step explanation:
How many different 3-digit numbers can be made using each of these digits shown below only once?
3,6,9
OA 3
O B. 6
Oc. 8
OD 10
O E more than 12
Answers
PLS HELP ASAP y = -3x + 1
y = x -7
Answers
Answer:
x=-1/3
x=7
Step-by-step explanation:
Not sure if this correct tho
Answer:
x=2
y=-5
Step-by-step explanation:
substitute y=-3x+1 in y=x-7
[tex]-3x+1=x-7[/tex]
[tex]-3x-x=-7-1[/tex]
[tex]-4x=-8\\x=2[/tex]
Substitute x=2 in any one of the given equations
y=x-7=2-7=-5
One batch of cookies makes 18. How many
batches will you need to make to be sure you
have at least 100
Answers
Answer:
6
Step-by-step explanation:
100/18=5 1/2
18*6=108
Answer : 18x5=90 18x6=108
Step-by-step explanation:
A scientists Used 786 milliliters of liquid for an experiment. How many liters of the liquid did the scientists use for this experiment?
Answers
Answer:
0.786 L
1000 ml to 1 L
(786 ml) / (1000 ml) = 0.786 L
Step-by-step explanation:
There were 10 bunches of roses and tulips. Each bunch had 5 of the same flowers. There were 2 more bunches of tulips than roses. How many tulips were there?
Answers
Answer:
I think the answer is 12 (sorry if i misunderstood the question)
Step-by-step explanation:
Because if there are 10 things of roses and tulips and then 2 more tulips are added in the question in total thats 12.... 10+2=12
You deposited $125 in a savings account that earns a simple interest rate of
1.75% per year. You earned a total of $8.75 in interest. For how long was your
money in the account?
Answers
9514 1404 393
Answer:
4 years
Step-by-step explanation:
Each year, the interest earned is ...
0.0175 · $125 = $2.1875
Then the time it took to earn $8.75 in interest was ...
$8.75/(2.1875/year) = 4 years