The total possible outcome when a coin is flipped and a die is rolled is 12
What is Probability?The probability is the measure of the likelihood of an event to happen. It measures the certainty of the event. The formula for probability is given by; P(E) = Number of Favourable Outcomes/Number of total possible outcomes.
For example if a coin is flipped, a coin only has two faces, this means that it will have 2 Total possible outcome. When a die is rolled, a die has 6 faces which means that it will Total outcome of 6. When both a coin is flipped and a die is rolled the total possible outcome is 6×2 = 12 outcomes.
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PLEASE HELP Use the substitution method to solve the sysytem of linear equations. Enter your answer as an ordered pair. There are four different question with these equations
1. Y=2x+5 X=1
2. Y=2x+1 Y=6x-1
3. Y=2(x-7) X+y=4
4. 3x-y=6 X+3y=12
The solutions to these system of equations are given as follows:
1. x = 1, y = 7.
2. x = 0.5, y = 2.
3. x = 6, y = -2.
4. x = 3, y = 3.
What is a system of equations?A system of equations is a set of equations involving multiple variables that are related, and then operations are made to solve these equations and identify the numeric value of each variable in the context of a problem.
For item 1, it is already stated that the solution for x is x = 1, hence the solution for y is obtained as follows:
y = 2(1) + 5 = 7.
For item 2, we are given two equations for y, hence the solution for x is obtained as follows:
2x + 1 = 6x - 1
4x = 2
x = 2/4
x = 0.5.
Hence the solution for y is:
y = 2(0.5) + 1 = 1 + 1 = 2.
For item 3, from the second equation, we have that:
y = 4 - x.
Then the solution for x will be of:
2(x - 7) = 4 - x
2x - 14 = 4 - x
3x = 18
x = 18/3
x = 6.
The solution for y is:
y = 4 - 6 = -2.
For item 4, from the first equation, we have that:
y = 3x - 6.
Then, replacing on the second equation, the solution for x is obtained as follows:
x + 3(3x - 6) = 12
x + 9x - 18 = 12
10x = 30
x = 3.
Then the solution for y is:
y = 3x - 6 = 3(3) - 6 = 9 - 6 = 3.
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A group of 16 people is choosing a chairperson and vice-chairperson. They put all 16 people's names into a hat. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and vice-chair are there?
Based on the number of people present, the total number of combinations of Chairperson and Vice Chairperson is 240 combinations.
How to carry out Probability combinations?In order for us to find out the total possible combinations, we will use the formula as:
Total possible combinations = Number of possible chairpersons * Number of possible vice chairpersons
We are given that;
Number of possible chairpersons = 16
Number of possible vice chairpersons = 15 (This is because a chairperson is chosen first and leaves 15 people.)
Thus, we can say that;
Total possible combinations = 16 * 15
Total possible combinations = 240 combinations
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PLEASE HELP EXTRA POINTS select all true statements
Answer: C
PLEASE GIVE BRAINLIEST THANK YOU VERY MUCH!!
19 is what percent of 500?
Answer:95
step by step explanation
See question in screenshot below.
The equation of the transformation of the exponential function y = 2ˣ in the form y = A·2ˣ + k, obtained from the simultaneous found using the points on the graph is y = (-2)·2ˣ + 3
What is an exponential equation?An exponential equation is an equation that has exponents that consists of variables.
The given equation is y = 2ˣ
The equation for the transformation is; y = A·2ˣ + k
The points on the graphs are;
(0, 1), (1, -1) and (2, -5)
Plugging the x and y-values to find the value A and k gives the following simultaneous equations;
When x = 0, y = 1, therefore;
1 = A·2⁰ + k = A + k
1 = A + k...(1)
When x = 1, y = -1, which gives;
-1 = A·2¹ + k
-1 = 2·A + k...(2)
Subtracting equation (1) from equation (2) gives;
-1 - 1 = 2·A - A + k - k
-2 = A
1 = A + k, therefore;
1 = -2 + k
k = 2 + 1 = 3
k = 3
Which gives;
y = -2·2ˣ + 3 = 3 - 2·2ˣ
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Find the value of z and z + 45.
angles:
(z+45)
55
78
Z
74
Which parabola will have one real solution with the line y=x-5?
The equation of the parabola that has one real solution with the line y = x - 5 is y = x² + 7·x + 4
What is the standard form of the equation of a parabola?The standard form of the equation of a parabola is y = a·x² + b·x + c
The equation of the line is; y = x - 5
The parabola that has one real solution with the line is given by the parabola that is equal to both (x - 5) and the equation for the parabola;
Analyzing the quadratic equations of the parabolas with the equation y = x - 5, gives;
y = x² + x - 4 = x - 5x² + x - 4 - x + 5 = 0
x² + 1 = 0
x² = -1
x = ±√(-1) (Complex solution)
y = x² + 2·x - 1 = x - 5x² + x + 4 = 0
The discriminant, b² - 4·a·c is 1² - 4 × 1 × 4 = -15 < 0 (Complex solution)
x² + 6·x + 9 = x - 5x² + 5·x + 14 = 0
The discriminant, b² - 4·a·c is 5² - 4 × 1 × 14 = -31 < 0 (Complex solution)
x² + 7·x + 4 = x - 5x² + 6·x + 9 = 0
The discriminant, b² - 4·a·c is 6² - 4 × 1 × 9 = 0 One real solution;The quadratic equation that gives one real solution with the equation y = x - 5 is therefore;
y = x² + 7·x + 4
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92≤x≤9? I need help with this fast thankyou
Answer:
yes
Step-by-step explanation:
because 4
Answer:
Step-by-step explanation:
average rate of change
[tex]=\frac{25-(-10)}{9-2} \\=\frac{35}{7}\\=5[/tex]
Match each number with its divisibility numbers.
3. 60
4. 48
5. 81
A. 3,9
B. 2,3
C.
2, 3, 5, 10
The numbers matched with its divisibility numbers is
for 60 the divisibility numbers are 2,3,5,10 .
for 48 the divisibility numbers are 2,3 and
for 81 the divisibility numbers are 3,9 .
In the question ,
three numbers are given as 60 , 48 and 81
we need to match them with their , respective divisibility numbers that are given in the option
For the first number 60 ,
we see that 60 is divisible by 2 , 3 , 5 and 10 because
30*2 [tex]=[/tex] 60 , 3*20 [tex]=[/tex] 60 , 5*12 [tex]=[/tex] 60 and 10*6 [tex]=[/tex]60 ,
So, for 60 the divisibility numbers are 2,3,5,10
that is option(c)
For the second number 48 ,
we see that 48 is divisible by 2 and 3 because
2*24 [tex]=[/tex] 48 , 3*16 [tex]=[/tex] 48 ,
So , for 48 the divisibility numbers are 2,3
that is option(b)
For the third number 81
we see that 81 is divisible by 3 and 9 because
3*27 [tex]=[/tex] 81 , 9*9 [tex]=[/tex] 81
So , for 81 the divisibility numbers are 3 an 9
that is option(a)
Therefore , The numbers matched with its divisibility numbers is
for 60 the divisibility numbers are 2,3,5,10 .
for 48 the divisibility numbers are 2,3 and
for 81 the divisibility numbers are 3,9 .
The given question is incomplete , the complete question is
Match the numbers 60 , 48 and 81 with its divisibility numbers
(a) 3,9
(b) 2,3
(c) 2,3,5,10
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A director of reservations believes that 9% of the ticketed passengers are no-shows. If the director is right, what is the probability that the proportion of no-shows in a sample of 789 ticketed passengers would differ from the population proportion by less than 3%? Round your answer to four decimal places.
The probability that the proportion of no-shows in a sample of 789 ticketed passengers would differ from the population proportion by less than 3% is 0.9968
How to get the required probabilityThe probability is calculated using z score, this is used to determine the amount of standard deviations a sample, X is from the mean
The z score is given by the formula
z = (X - μ) / σ
Definition of variables
mean, μ = p = 9% = 0.09
sample size, n = 789
standard deviation, σ
= √{(p(1 - p)) / n}
= √{(0.09(1 - 0.09)) / 789}
= √{(0.09 * 0.91) / 789}
= 0.0102
The probability
differ from the population proportion by less than 3%
|X - 0.09| < 0.03
X < 0.12 OR X > 0.06
0.06 < X < 0.12
P(z < 0.12) - P(z < 0.06 )
z score for z < 0.06
z = (0.06 - 0.09) / 0.0102
= -2.9412
p value for z < -2.9412 = 0.0016
z score for z < 0.12
z = (0.12 - 0.09) / 0.0102
= 2.9412
p value for z < 2.9412 = 0.9984
The probability required = 0.9984 - 0.0016 = 0.9968
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WILL GIVE BRAINLIEST !!
A helicopter lifts 75m vertically into the air and then comes back down to the ground.
a) What is the distance of the helicopter’s flight?
b) What is the displacement of the helicopter’s flight? Show your work
Distance is the total length covered by an object.
Displacement is the distance between the final point and the initial point.
The distance of the helicopter's flight is 150 m
The displacement of the helicopter's flight is zero.
What is displacement?Displacement is the distance between the final point and the initial point.
We have,
A helicopter lifts 75m vertically into the air and then comes back down to the ground.
Distance is the total length covered by an object.
Distance of the helicopter's flight.
= 75m + 75m
= 150 m
Displacement of the helicopter's flight.
= Final point - Initial point
= 0 - 0
= 0
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Sets A, B, and C are subsets of the universal set U.
These sets are defined as follows:
U= {f, g, h, p, q, r, x, y, z}
A= {f, g, p, q}
B= {g, h, q, x, y}
C={ p, q, x, y, z}
Find (A' u B) ∩ C'.
Write your answer in roster form or as Ø.
=====================================================
Explanation:
Unfortunately the U from "universal set" and the union symbol look almost identical.
What I'll do to avoid confusion is to let E represent the set of everything we care about, aka universal set.
E = {f, g, h, p, q, r, x, y, z}
Feel free to use other notation if it makes better sense to you.
From this set, we'll erase items that are found inside set A = {f, g, p, q}
So we go from this
E = {f, g, h, p, q, r, x, y, z}
to this
A' = {h, r, x, y, z}
Everything found in here is guaranteed to not be inside set A.
------------------------
The next step is to union set A' with set B. This is where we combine those two sets into a larger set of items. Toss out any duplicates. Each unique letter is to be listed once.
A' u B = {h, r, x, y, z} U {g, h, q, x, y}
A' u B = {h, r, x, y, z, g, h, q, x, y}
A' u B = {g, h, q, r, x, y, z}
It's recommended you sort the items in a consistent fashion.
Set this result aside for now, and come back to it later.
------------------------
Go back to the set of everything, aka universal set.
E = {f, g, h, p, q, r, x, y, z}
Cross off stuff found in set C, so we guarantee to form the opposite or complement set C'
C' = set of everything NOT found in C
C' = erase "p,q,x,y,z" from set E
C' = {f, g, h, r}
------------------------
To recap we found
A' u B = {g, h, q, r, x, y, z}C' = {f, g, h, r}Intersect those sets by looking at what they have in common. This is the overlapped region between the sets.
The three items in common are: {g, h, r} which forms the final answer.
(−3,y) and (x,2).
y=4x+6
orderd pair
Franks’s annual salary is $80000. About 25% of her salary is deducted for taxes.
How much tax is deducted?
Explain.
what is the sum of 3x and -3x + 4?
Willy is an avid fisherman of the world. As he travels, he goes fishing 2 times on every mainland Country he visits and goes fishing 5 times on every Island he visits.
As far as he remembers, Willy went fishing 65 times in the total of the 25 unique Countries and Islands he visited.
How many Countries and Islands did Willy visit? (Where and represent the countries and islands)
The number of mainland countries is 20 and the number of island countries is 5 countries that Willy visited.
How to calculate the value?Let the number of mainland be represented by m
Let the number of island be represented by x.
This will be illustrated as:.
m + x = 25 .... i
2m + 5x = 65 .... ii
From equation i, m = 25 - x.
Put this into equation ii
2m + 5x = 65
2(25 - x) + 5x = 65
50 - 2x + 5x = 65
3x = 65 - 50
3x = 15
Divide
x = 15 / 3
x = 5
Island countries = 5
Since m + x = 25
m = 25 - 5 = 20
Mainland countries = 20
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Examine the worked examples. Then, answer the questions.
Alessa's car uses 2 gallons of gas to drive 45 miles. How many miles can
Alessa's car drive using 15 gallons of gas?
Let m represent the number of miles and g represent the gallons of gas.
m=
11 L
m=
m=
Write an equation in the form y = kx for the number of
miles in terms of the gallons of gas.
(15) Substitute the value for the given quantity.
Evaluate the right hand side of the equation.
Alessa's car can drive
miles using 15 gallons of gas.
Answer: if you multiply you will end up with 675
Step-by-step explanation:
Which of the following equations does the graph below represent?
A. 3x + 7y = 21
B. -3x + 7y = 21
C. x + 7y = 21
D. -3x + y = 21
Answer:
B
Step-by-step explanation:
if x = 0 ; y = 3
if x = -7 ; y = 0
A 0 + 7(3) = 21
0 + 21 = 21
21 = 21 (ok)
3(-7) + 0 = 21
-21 = 21 (false)
B
0 + 21 = 21
21 = 21 (ok)
(-3)(-7) + 0 = 21
21 = 21 (ok)
X
0
123
4
f(x)
36
54
81
121.5
182.25
کے
Using the given table, what are the y-values of the table?
Using the given table, the y-values are 36, 54, 81, 121.5, and 182.25.
We are given a table. Mathematical tables are collections of numbers that represent the outcome of a computation with varied arguments. The table has two columns and five rows. The first column shows the x-values. The second column shows the f(x) values. We know that y = f(x). So, the second column shows the y-values. The y-value is the vertical value in a pair of coordinates. It denotes how high or low the point is. In an ordered pair of coordinates, the y-coordinate is always written second (x, y). The five rows show the data points with corresponding x-values and y-values.
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Question 5 (1 point), You are making your friend a triangular fabric decoration for their home. It has ripped so you need to go buy new fabric. The fabric you are buying is $3 per square foot. Using the dimensions below, how much money do you need to buy enough fabric?
Answer:
1). True
2). x = 16.4 m^2
3). A = 24, h = 4
4). A = 18.39
5). 162
Step-by-step explanation:
I took this quiz on K12 and got everything correct! Brainliest welcome! :)
16 2/3-15 1/6+1.3/2.5x1.56x0.4
HELP ASAP
Answer:
Step-by-step explanation:
The answer would be 1.82448
A cube box is 20 cm x 20 cm x 20 cm. What is the surface area of the largest size sphere that can fit in this box? Leave your answer in terms of pi.
The surface area of the largest size sphere that can fit in this box is 400π
What is the surface area of the sphere?
The surface area of a sphere is the space that the sphere's outer surface occupies. A sphere is a circle in three dimensions. A circle is a two-dimensional (2D) shape, whereas a sphere is a three-dimensional (3D) shape, which is the difference between the two.
Here, we have
The diameter of the biggest sphere will be equal to the side of the sphere.
radius = 20/2
= 10
The surface area of the sphere = 4πr²
=4π(10)²
= 400π
Hence, the surface area of the largest size sphere that can fit in this box is 400π.
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In the diagram ray MO bisects the measurement of
Emory walks one lap on the
track every 7 minutes. Madison
walks one lap on the track every
8 minutes. How many minutes
will pass before they meet on
track at the same time?
Answer: 56 minutes
Step-by-step explanation:
7 = 7, 14, 28, 35, 42, 49, 56
8 = 8, 16, 24, 32, 40, 48, 56
7 and 8 have 56 in common so it would take them 56 minutes
Simplify.
2x-4
²-8+12
O
O
O
-6
x+6
x-6
-
x-2
²-82+12
The simplified value of (2x - 4)² is 4x² - 16x + 16.
First, let us understand the algebraic identities;
Algebraic identities are equations in which the left hand side of the equation is identically equal to the right hand side of the equation.
Some of the identities are:
(a + b)² = a² + 2ab + b²(a - b)² = a² - 2ab + b², etc.We are given (2x - 4)².
Use the identity (a - b)² = a² - 2ab + b² to expand to the given expression.
So, a = 2x and b = 4.
Put it into the identity, we will get;
Therefore,
(2x - 4)² = (2x)² - 2 * 2x * 4 + (4)² = 4x² - 16x + 16
Thus, the simplified value of (2x - 4)² is 4x² - 16x + 16.
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Add the 2 polynomials:
(-77x²¹ +
2
·x² + x
3
+[52*+
1
-
Answer:
Step-by-step explanation:
The green basilisk enclosure will include a rectangular pond in one corner. The width of the
pond will be 3 inches less than the width, w, of the enclosure.
W-3
The area of the water's surface is given by this expression: w² - w - 6.
Question
Question 1
Factor the area expression, w² - w - 6.
Replace the values of A and B to write the expression in factored form.
(w - A) (w + B)
After factorization we get the two terms ( w - 3 ) ( w + 2 )
And the values of A and B as 3 and 2 respectively .
That is A = 3 and B = 2.
The given expression is w² - w - 6.
This question can be calculated easily by middle term split
First step is to multiply the first and the last term
which will give us - 6
thus now we have to look for two number which when either added or subtracted will give us - 1
Thus we can write it as :
w² - 3 w + 2 w - 6
Now take the terms which are common
and we will get
w ( w - 3 ) + 2 ( w - 3 )
( w - 3 ) ( w + 2 )
Thus if we compare it with (w - A) (w + B)
we will get the values of A and B as
3 and 2 respectively .
That is A = 3 and B = 2
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On an architect's blueprint, 1 inch corresponds to 4 feet. Find the length of a wall represented by a line 1 inches long on the blueprint
The length of wall in real life is 4 feet.
Given that on an architect's blueprint, 1 inch corresponds to 4 feet.
In this architect's plan, a wall represented by a line 1 inches long on the blue print.
So, the length of wall in real life is = 4 feet.
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Answer:
4ft
Step-by-step explanation:
If 1 inch corresponds to 4 ft on the blueprint. The ratio is 1 inch on the blue print for every 4 ft in real life.
f(x) = √3x
g(x) = 3x + 2
Find (4) (2). Include any restrictions on the domain.
Option A is correct. The value of function (f/g)(x) is found to be [tex]\sqrt[3]{3x}[/tex]/(3x+2) where the condition is that x ≠ -2/3.
What exactly is a function composition?In mathematics, function composition is an operation in which two functions, f and g, form a new function, h, in such a way that h(x) = g(f(x)). This signifies that function g is being applied to the function x. So, in essence, a function is applied to the output of another function.
What is the sum of two functions?The new function obtained by performing f first and then g is the combination of two functions g and f.
Given:
f(x) = [tex]\sqrt[3]{3x}[/tex]
g(x) = 3x + 2
(f/g)(x) = [tex]\sqrt[3]{3x}[/tex]/(3x+2)
Also, the denominator should not be equal to 0.
So, 3x + 2 ≠ 0
x ≠ -2/3
Therefore, the value of function is found to be [tex]\sqrt[3]{3x}[/tex]/(3x+2) where the condition is that x ≠ -2/3. So, Option A is correct
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You can afford a $1100 per month mortgage payment. You've found a 30 year loan at 8% interest.
a) How big of a loan can you afford?
b) How much total money will you pay the loan company?
c) How much of that money is interest?
a) $149911.84 can be afforded
b) $39600 is the total money you will pay the loan company
c) $246088.16 is the interested amount
What is interest ?The cost of borrowing money is called interest, and it is typically stated as a percentage, such as an annual percentage rate (APR).Lenders may charge interest to borrowers for using their funds, or borrowers may charge interest to lenders for using their funds.Interest is frequently regarded as simple interest (based on the principal amount) or compound interest (based on principal and previously-earned interest).Credit cards, mortgages, auto loans, personal loans, savings accounts, and penalty assessments are all frequently linked with interest.The macroeconomic policy set by the Federal Reserve's federal funds rate has a significant impact on interest rates.Calculation
Given,
d=$1100
N= 30 years
r = 8% or 0.08
a) Loan amount that can be afforded
[tex]=\frac{d[1- (1+\frac{r}{k})^{-Nk} }{\frac{0.08}{12} }[/tex]
[tex]=\frac{1100[1- (1+\frac{0.08}{12})^{-30*12} }{\frac{0.08}{12} }[/tex]
= $149911.84
b) Total money you pay = d×N×k
=1100×30×12
=$39600
c) Interest paid = Total money paid – loan amount
⇒39600–14911.84 = $246088.16
Hence,
a) $149911.84 can be afforded
b) $39600 is the total money you will pay the loan company
c) $246088.16 is the interested amount
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