Answer:
379.94 cm 2
Step-by-step explanation:
i will mark you as brainliest if you answer this correctly!
Answer:
1/32 yd
Step-by-step explanation
You roll two fair dice, a green one and a red one.
Required:
a. What is the probability of getting a sum of 8? (Enter your answer as a fraction.)
b. What is the probability of getting a sum of 4?
c. What is the probability of getting a sum of 8 or 4?
d. Are these outcomes mutually exclusive?
Answer:
[tex]a.\ \frac{5}{36}\\b.\ \frac{1}{12}\\c.\ \frac{2}{9}\\d.\ $Not mutually exclusive$[/tex]
Step-by-step explanation:
Given two fair dice are rolled, one green and one red.
To find:
a. Probability of getting a sum of 8.
b. Probability of getting a sum of 4.
c. Probability of getting a sum of 8 or 4.
d. Are these outcomes mutually exclusive?
Solution:
First of all, let us have a look at the output of roll of two dice.
There are a total of 36 outcomes.
{(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)
(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)
(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)
(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)
(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)
(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)}
a. Getting a sum equal to 8, we have following outcomes:
{(2, 6), (3,5), (4, 4), (5,3), (6, 2)}
5 possible outcomes for this event.
Formula for probability of an event E can be observed as:
[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]
[tex]P($Getting 8$) = \dfrac{5}{36}[/tex]
b. Getting a sum equal to 4, we have following outcomes:
{(1, 3), (2,2), (3, 1)}
3 possible outcomes for this event.
Formula for probability of an event E can be observed as:
[tex]P($Getting 4$) = \dfrac{3}{36} = \dfrac{1}{12}[/tex]
c. Probability of getting a sum of 8 or 4?
Following possible outcomes are there:
{(2, 6), (3,5), (4, 4), (5,3), (6, 2), (1, 3), (2,2), (3, 1)}
Total 8 possible outcomes:
[tex]P($Getting 8 or 4$) = \dfrac{8}{36} = \dfrac{2}{9}[/tex]
d. Are these outcomes mutually exclusive?
These events are not mutually exclusive because they contain the similar outcome from both of the dice.
i.e. (4, 4) and (2, 2)
Samples of emissions from three suppliers are classified for conformance to air-quality specifications. The results from 100 samples are summarized as follows:
conforms
yes no
1 22 8
supplier 2 25 5
3 30 10
Let A denote the event that a sample is from supplier 1, and let B denote the event that a sample from any supplier conforms to specifications. If a disk is selected at random, determine the following probabilities.
a. P(A)=0.3
b. P(B)=0.77
c. P(A ∩ B) =0.22
d. P(A U B)=0.85
Answer
[tex]P(A) = 0.30[/tex]
[tex]P(B) = 0.77[/tex]
[tex]P(A\ n\ B) = 0.22[/tex]
[tex]P(A\ u\ B) = 0.85[/tex]
Explanation:
Given
See attachment for proper data presentation
[tex]n = 100[/tex] --- Sample
A = Supplier 1
B = Conforms to specification
Solving (a): P(A)
Here, we only consider data in sample 1 row.
Here:
[tex]Yes = 22[/tex] and [tex]No = 8[/tex]
[tex]n(A) = Yes + No[/tex]
[tex]n(A) = 22 + 8[/tex]
[tex]n(A) = 30[/tex]
P(A) is then calculated as:
[tex]P(A) = \frac{n(A)}{Sample}[/tex]
[tex]P(A) = \frac{30}{100}[/tex]
[tex]P(A) = 0.30[/tex]
Solving (b): P(B)
We only consider data in the Yes column.
Here:
[tex](1) = 22[/tex] [tex](2) = 25[/tex] and [tex](3) = 30[/tex]
[tex]n(B) = (1) + (2) + (3)[/tex]
[tex]n(B) = 22 + 25 + 30[/tex]
[tex]n(B) = 77[/tex]
P(B) is then calculated as:
[tex]P(B) = \frac{n(B)}{Sample}[/tex]
[tex]P(B) = \frac{77}{100}[/tex]
[tex]P(B) = 0.77[/tex]
Solving (c): P(A n B)
Here, we only consider the similar cell in the yes column and sample 1 row.
i.e. [Supplier 1][Yes]
This is represented as: n(A n B)
[tex]n(A\ n\ B) = 22[/tex]
The probability is then calculated as:
[tex]P(A\ n\ B) = \frac{n(A\ n\ B)}{Sample}[/tex]
[tex]P(A\ n\ B) = \frac{22}{100}[/tex]
[tex]P(A\ n\ B) = 0.22[/tex]
Solving (d): P(A u B)
This is calculated as:
[tex]P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)[/tex]
This gives:
[tex]P(A\ u\ B) = \frac{30}{100} + \frac{77}{100} - \frac{22}{100}[/tex]
Take LCM
[tex]P(A\ u\ B) = \frac{30+77-22}{100}[/tex]
[tex]P(A\ u\ B) = \frac{85}{100}[/tex]
[tex]P(A\ u\ B) = 0.85[/tex]
Plz can anyone help me?
Answer:
400x
Step-by-step explanation:
as shown in the graph from points such as (1, 400) or (2,800) the person is traveling 400 per day
How to turn 11 over 25 to a percet
Answer:
44%
Step-by-step explanation:
11 = x
25 100
'percent' means out of 100
25 x 4 = 100
11 x 4 = 44
If chicken and a half lays an egg in a half in a day and a half, how many eggs would 3 chickens lay in 3 days?
Answer:
3 and a half
Step-by-step explanation:
Since it is half in a day they will lay 3 eggs and an egg will be in the process of coming
which graph is it?
[tex]g(x) = |x + 3| [/tex]
HELP ASAP PLZ HELPPPP
Answer:
The angle ACX equals 51 degrees. The angle ACB equals 129 degrees.
Step-by-step explanation:
21 + 30 + y = 180
y = 129
129 + x =180
x = 51
Answer:
A teacher had 20 ounces of water in der
water bottle. She drank of the water.
How many ounces did she drink?
Answer:
the question is wrong
i cant answer it sorry
in the following census population density dataset, what are the first, second, third quartiles? 1,19,35,43,49,55,56,56,63,67,94,105,110,168,175,181,212,231,239,351,461,595,738,839,9857
HELP ME PLEASE HELP HELP HELP WALLAHI HELP
9514 1404 393
Answer:
48
Step-by-step explanation:
The Pythagorean theorem tells you the square of the hypotenuse (longest side) is the sum of the squares of the other two sides. Let x represent the unknown side.
73² = x² +55²
5329 = x² +3025 . . . evaluate the squares
2304 = x² . . . . . . . . . subtract 3025 from both sides
48 = x . . . . . . . . . . . . take the square root of both sides
The exact length of the third side is 48.
y=3x+5
y=4x+8
Find X
Answer:
The value of x is -3.
Step-by-step explanation:
It is given that:
y=3x+5 Eqn 1
y=4x+8 Eqn 2
Putting value of y from Eqn 2 in Eqn 1
4x + 8 = 3x + 5
4x - 3x = 5 - 8
x = -3
Therefore,
The value of x is -3.
PLEASE HELP!! URGENT!!!
If the expression below is written in
the form ax2 + bx + c and a, b, and
care constants. What is the value
of a + b + c?
(3x2 – 2x + 5) – (-2x2 – 2x + 2)
Im not sure the answer
Step-by-step explanation:
sorry tho
Find the x- and y-intercepts of the graph of the equation.
y = 2/3x-12
Help plz
I know the y is 0,-12 but is the x intercept?
Answer:
(18,0)
Step-by-step explanation:
Set y equal to zero
0=2/3x-12
12=2/3x
x=18, the x intercept is (18,0)
Answer:
x-intercept at (18, 0)
Step-by-step explanation:
to find x-intercept, set 'y' equal to zero and solve for 'x'
0 = 2/3x - 12
12 = 2/3x
2x = 36
x = 18
What is the solution to the inequality below
Answer:
x² ≤ 16
x²-16 ≤ 0
x²-4²≤0
(x-4)(x+4) ≤ 0
-4 ≤ x ≤ 4
B. is the right answer.
Product A is an 8-oz. bottle of cough medication that sells for $1.36. Product B is a 16-oz. bottle of cough medication that costs $3.20. Which product has the lower unit price?
Answer:
A
Step-by-step explanation:
Joel has a bag with 128 pieces of candy in it He gives his sister 25% of the candy how many peices of candy does joel give his sister
Answer:
32
Step-by-step explanation:
solving system equations
y=5
x=-2y+56
Worth a lot of points
Answer: guy Belows right
Step-by-step explanation:
Rewrite 6/4as a percent
Answer: 150%
Step-by-step explanation:
6/4 is the same as 3/2 or 1¹/₂
Change to a decimal by dividing the denominator into the numerator
3/2 = 1.5
Then multiply by 100 to change from a decimal to a percent.
1.5 × 100 = 150 Add the % sign
150%
a in the solution to the system of equations below?
a=38 +7
4a +9 = 70
Answer:
A=45
15.25
Step-by-step explanation:
You and three friends are going to the fair. The cost for
parking is $5 per car and admission to the fair is $19 per person. If you have
a total of $113, how much can each person spend on food?
Answer:
$17 on food per person
Step-by-step explanation:
The cost of parking a car is $5
Assuming that the friends used one car, then the parking cost=$5
Admission cost is 19
For three people, Admission cost =19*3=57
TOTAl COSTS=Parking cost+Admission cost
TOTAl COSTS=57+5=62
Remaining amount can be used for food
FOOD= 113-62=51
Therefore each person can spend 51/3=$17 on food
I hope this was helpful and clear to follow
Answer:
$8
Step-by-step explanation:
19 x 4 + 5 + c =113
81 + c =113
-81 -81
c =32
32 divided by 4 ppl = 8
Hello, I have been needing help for this problem for awhile. Can someone help me please?
Answer:
x = 6
Step-by-step explanation:
[tex]x = \sqrt{10 {}^{2} - 8 {}^{2} } [/tex]
[tex]x = \sqrt{100 - 64} [/tex]
[tex]x = \sqrt{36} [/tex]
[tex]x = 6[/tex]
If x= 25 and y= 54. What is the constant of proportionality?
9514 1404 393
Answer:
2.16
Step-by-step explanation:
The constant of proportionality is the ratio of y to x:
k = 54/25 = 2.16
The constant of proportionality is 2.16.
What is the volume of the cone?
21 cm
16 cm
17 cm
12 cm
A 201.1 cm3
B. 603.2 cm
0
C. 640.9 cm3
D. 791.7 cm
Answer:
C
Step-by-step explanation:
help pls will give you brandy
Answer:
9+2=7-4+3
9-4=5+2=7
4-9=5+2=7
4-9+5+2=7
Step-by-step explanation:
Your welcome bro
Answer:
1. A
2. C
3. B
4. B
5. A
Step-by-step explanation:
I hope this helps might be wrong if they are just delete my answer.
-10(1 - 9x) + 6(x - 10)
Combining like terms
What is the equation in the standard form of a parabola with a vertex of (4,2) that passes through (2, 14)?
9514 1404 393
Answer:
y = 3x^2 -24x +50
Step-by-step explanation:
The vertex form is ...
y = a(x -4)^2 +2
where 'a' is chosen to make the curve pass through the given point.
14 = a(2 -4)^2 +2 . . . . substitute the given point
14 = 4a +2 . . . simplify
12 = 4a . . . . . subtract 2
3 = a . . . . . . . divide by 4
Then the standard form is the expansion of the vertex form:
y = 3(x -4)^2 +2 = 3(x^2 -8x +16) +2
y = 3x^2 -24x +50
B(t)=100•2^t/10 how many minutes will it take for the culture to achieve 10,000 bacteria? Round answer to nearest hundredth
Answer:
66.44
Step-by-step explanation:
66.44 minutes will it take for the culture to achieve 10,000 bacteria.
What is logarithm?In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x
Given
B(t)=[tex]100.2^{\frac{t}{10} }[/tex] = 10000
[tex]2^{\frac{t}{10} } = 100\\t = 100\frac{ln 10}{ln 2} = 66.44[/tex]
To know more about logarithm refer to :
https://brainly.com/question/2411204
#SPJ2
Please help!!! I need someone to use some brain power
Answer:
r = 4, s = 3, t = 5Step-by-step explanation:
Solving quadratic equation:
5x² - 8x + 5 = 0x = (-b ± √b²-4ac)/2ax = (8 ± √8²-4*5*5)/2*5x = (8 ± √64-100)/10x = (8 ±√-36)/10x = (8 ± 6i)/10x = (4 ± 3i)/5x = (r ± si)/t
r = 4, s = 3, t = 5