Answer:
x = 7
Step-by-step explanation:
lmk if I'm wrong, but I shouldn't be
Which graph represents 12 = 3x + 4y line a, line b, line c
Answer:
green line or "b"
Step-by-step explanation:
we can set this up into the slope intercept form
y=mx+b
where m is the slope and b is y intercept
12=3x+4y
-3x -3x
-3x+12=4y
/4. /4. /4
-3/4x+3=y
we can see the only line with a negative slope and a y intercept at 3 is the green line or "b"
hopes this helps please mark rainliest
A local arcade is hosting & tournament in which contestants play an arcade game with possible scores ranging from 0 to 20. The arcade has set up multiple game tables so that all contestants can play the game at the same time; thus contestant scores are independent Each contestant'$ score will be recorded as he Or she finishes, and the contestant with the highest score is the winner.
After practicing the game many times, Josephine_ one of the contestants, has established the probability distribution of her scores, shown in the table below. Crystal, another contestant; has also practiced many times_ The probability distribution for her scores is shown in the table below as well.
Josephile' Distribulion Crystal's Distribution Score 16 17 18 19 Score 17 18 19 Probability 0.10 0.30 0.40 0.20 Probability 045 0,40 0.15 a. Calculate the expected score for cach player
b. Suppose that Josephine scores 6 and Crystal scores 17. The difference (Josephine minus Crystal) of their scores is -1. List all combinations of possible scores for Josephine and Crystal that will produce a difference (Josephine minus Crystal) of -1 and calculate the probability of each combination c. Find the probability that the difference (Josephine minus Crystal) in their scores is -1
d. What is the probability that Josephine will score a 9 for the first time the 4th time that Josephine and Crystal play the game.
e. If Josephine and Crystal play 5 times, what is the probability that Crystal's score will be 17 exactly 3 times
a. The expected score for Josephine and Crystal is 17.3 and 17.1 respectively.
b. The total probability of these combinations is 0.045 + 0.120 + 0.030 = 0.195.
c. 0.195 the probability that the difference (Josephine minus Crystal) in their scores is -1.
d. 0.008 is the probability that Josephine will score a 9 for the first time the 4th time that Josephine and Crystal play the game.
d. 0.3267. is the probability that Crystal's score will be 17 exactly 3 times.
a. To calculate the expected score for each player, we use the formula:
Expected Score = Σ(\(x_i \times P_i\))
where \(x_i\) is the score and \(P_i\)is the probability of that score.
For Josephine:
Expected Score = 16(0.10) + 17(0.30) + 18(0.40) + 19(0.20) = 17.3
For Crystal:
Expected Score = 17(0.45) + 18(0.40) + 19(0.15) = 17.1
b. To find all combinations of possible scores for Josephine and Crystal that will produce a difference (Josephine minus Crystal) of -1, we need to subtract 1 from Josephine's score and compare it to Crystal's score.
The possible combinations are:
Josephine Crystal Probability
15 17 0.100.45 = 0.045
16 18 0.300.40 = 0.120
17 19 0.20 x 0.15 = 0.030
c. The probability that the difference (Josephine minus Crystal) in their scores is -1 is the sum of the probabilities of the combinations listed in part (b), which is 0.195.
d. The probability that Josephine will score a 9 for the first time on the 4th play is the probability of scoring less than 9 on the first three plays and then scoring exactly 9 on the fourth play.
Assuming that Josephine's scores are independent, we can use the multiplication rule of probability:
Probability = \(P(score < 9)^3\) x P(score = 9)
Probability = \((0.10 + 0.30 + 0.40)^3\) x 0.20
Probability = 0.008.
e. The probability that Crystal's score will be 17 exactly 3 times out of 5 plays is given by the binomial distribution formula:
Probability = \(C(5,3) \times (0.45)^3 \times (0.55)^2\) = 0.3267
where C(5,3) is the number of ways to choose 3 plays out of 5.
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parallelogram pqrs has diagonals PR in SQ that intersect at T given s p equals 2 a + 5 + r q equals 5 a - 1 St equals 3 b - 3 + SQ equals 7 b - 9 what are the values of RQ and TQ
SP = 2a+5
RQ= 5a-1
ST = 3b-3
SQ = 7b-9
RQ=?
TQ=?
SP = RQ
2a+5 = 5a-1
Solve for a
5+1 = 5a-2a
6 = 3a
6/3 = a
2=a
RQ= 5a-1 = 5(2)-1 = 10-1 = 9
RQ= 9
ST + TQ = SQ
ST= TQ
TQ= 3b-3
3b-3+3b-3= 7b-9
Solve for b
6b-6 = 7b-9
-6+9 = 7b-6b
3=b
TQ = 3b-3= 3(3)-3= 9-3 =6
TQ= 6
Does the graph represent a function? Why or why not ?
Answer:
A.
Step-by-step explanation:
The vertical line test is a way of finding out if a relation is a function.
Graph the relation.
Then imagine a vertical line moving from left to right over the graph of the relation.
If the vertical line intersects at most one point of the graph in any position you place the vertical line, then the relation is a function.
This function passes the vertical test since it never intersects more than one point on the vertical line at a time.
Answer: A.
Solve the following problems. (2 points each) 1. Father harvested 38 pieces of watermelons, each weighing an average of 2.3 kg. What is the total average weight of the watermelons?TMtotstou
Answer:
Step-by-step explanation:
PlEase answer !!
Will give brainlst
solution:
V=πr2h
3=π·9.32·18.4
3≈1666.52694
Round off to the nearest tenth: 1666.5
Can y’all help me on question 29?!
Answer:
Step-by-step explanation:
Lorie is using long division to find the quotient of x^3 + 6x^2 + 5 and x^2 + x -1, as shown at the bottom of this question.
What mistake did Lorie make?
A. She added an extra term to the dividend.
B. She combined the constants incorrectly in the last step.
C. The second term in the quotient should be 7.
D. The last term in the quotient has an incorrect denominator.
Answer:
Option (B)
Step-by-step explanation:
x² + x - 1) x³ + 6x² + 0x + 5 ( x + 5
- (x³ + x² - x)
5x² + x + 5
-(5x² + 5x - 5)
-4x + 10
Result : \(x+5+\frac{-4x+10}{(x^{2}+x-1)}\)
By the comparing the result with the Lorie's solution,
She made a mistake in the last step in which she combined the constant incorrectly.
Therefore, Option (B) will be the answer.
(05.03 LC)
The equation shows the relationship between x and y:
y = −4x + 9
What is the slope of the equation? (5 points)
Group of answer choices
−9
−4
4
9
PLEASE HELP THESE ROBOTS ARE SPAMMING ME
What led to the formation of the 2 political parties?
A. The Revolutionary War
B. Hamilton's financial plan
C. the Whiskey Rebellion
D. A loss in rock, paper, scissors
Step-by-step explanation:
The answer is the Revolutionary War
show your work on the number line 4 - 2 3/7?
Answer:
4 1/2
Step-by-step explanation:
41−172=?
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
LCD(4/1, 17/2) = 2
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(41×22)−(172×11)=?
Complete the multiplication and the equation becomes
82−172=?
The two fractions now have like denominators so you can subtract the numerators.
Then:
8−172=−92
This fraction cannot be reduced.
The fraction
−92
is the same as
−9÷2
Convert to a mixed number using
long division for -9 ÷ 2 = -4R1, so
−92=−412
Therefore:
41−172=−412
Solution by Formulas
Apply the fractions formula for subtraction, to
41−172
and solve
(4×2)−(17×1)1×2
=8−172
=−92
Convert to a mixed number using
long division for -9 ÷ 2 = -4R1, so
−92=−412
Therefore:
41−172=−412
Your brother won 7 packages of colored candies with 24 pieces each. According to manufacture. For each 1 blue piece produced. The company makes 3 brown. 2 yellow. 2 red. 1 orange and 1 green. How many of each color do you expect to find in your brothers candy?
Answer:
16.8 or 17 blue
50.4 or 50 brown
33.6 or 34 yellow
33.6 or 34 red
16.8 or 17 orange
16.8 or 17 green
Step-by-step explanation:
7 x 24 = 168 candies
blue = b
brown = w
yellow = y
red = r
orange = o
green = g
1b = 3w + 2y + 2r + 1o + 1g
1 +3 + 2 + 2 + 1 + 1 = 10
168/10 = 16.8
1(16.8) +3(16.8) + 2(16.8) + 2(16.8) + 1(16.8) + 1(16.8) =
16.8 blue
50.4 brown
33.6 yellow
33.6 red
16.8 orange
16.8 green
a one sided confidence interval bounding the high side is desired for the true average stray-load loss (in watts) for a certain induction motor when the line current is held at 10 amps for a speed of 1500 rpm. assume that the stray-load loss population is normally distributed with standard deviation = 2. Compute a one-sided 99% Confidence Interval for mu when n = 86, and X_Bar =71. Give your answer accurate to three decimal pointsPlease show steps with out excel or calculators I use tables only
using the formula Upper Bound = X_Bar + (critical value * standard deviation/sqrt(n)) to calculate the upper bound of the interval. The result is an upper bound of 72.41.
The standard normal distribution table is used to calculate the critical value for this problem.
The critical value at 99% confidence level is 2.576.
The formula for the one-sided confidence interval is given by:
Upper Bound = X_Bar + (critical value * standard deviation/sqrt(n))Therefore, the one-sided 99% Confidence Interval for mu when n = 86, and X_Bar =71 is:
Upper Bound = 71 + (2.576 * 2/sqrt(86))
Upper Bound = 71 + (1.41)
Upper Bound = 72.41
The one-sided 99% Confidence Interval for mu when n = 86 and X_Bar =71 is calculated by using the standard normal distribution table to find the critical value of 2.576, and then using the formula Upper Bound = X_Bar + (critical value * standard deviation/sqrt(n)) to calculate the upper bound of the interval. The result is an upper bound of 72.41.
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The admission fee at an amusement park is $4.00 for children and $6.40 for adults. On a certain day,
301 people entered the park, and the admission fees collected totaled $1504. How many children
and how many adults were admitted?
number of children equals
number of adults equals
On solving the given equation, we have - 125 adult tickets and 179= children tickets.
What exactly is an equation?An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated by the symbol "equal."
301= 104
6.40 =2.25
4.00=1.75
Suppose the number of adult ticket bought =x
And number of children tickets bought = (301-x).
equation is
6.40(x) + 4(301-x) = 1504
6.40x + 1204 - 4x = 1504
2.40x = 300
x= 125
125 adult tickets and 179= children tickets.
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how to do the sum
please help me.
Answer:
99.20
Step-by-step explanation:
Okay let me show you how to do this. This is very easy so please do not complicate yourself.
"62/5" means 62 divided by 5.
We need to divide 62 by 5. So: 62 ÷ 5 = 12.40
Now that we've simplified the fraction, this is now what we have: 12.40 × 8
So now we need to multiply 12.40 by 8.
12.40 × 8 = 99.20
And there's your answer!
who is right andrew or annie?
Answer:
andrew
Step-by-step explanation:
Which equation represents a line with a slope of 0 that passes through the point (-14, 2)?
y = 2 is an equation that passes through the point (-14,2) and has no slope.
5. El bloque de la figura se encuentra en reposo en el momento en que empiezan a actuar las fuerzas.
F₁ = 25 N
F, = 22.6 N
m = 2 kg
a. Encontrar el valor de la fuerza resultante.
b. Determina su aceleración.
C. Calcula la velocidad del bloque a los 5 segundos de movimiento.
The resultant force acting on the block is 47.6N.
The acceleration of the block will be 23.8 m/s².
The speed of the block after 5 seconds of movement is 119 m/s.
What is the resultant force?In this question, we need to make use of Newton's second law, hence:
resultant force = mass × acceleration
So, for question a. The value of the resultant force will be obtained by adding the two forces together:
resultant force = F₁ + F₂
= 25N + 22.6N
= 47.6N
b. Its acceleration will be:
acceleration = resultant force / mass
= 47.6N / 2kg
= 23.8 m/s²
c. The speed of the block after 5 seconds of movement will be:
Velocity (v) = u + at
velocity = initial velocity + acceleration x time
Based on the block was initially at rest, the initial velocity is 0.
Hence:
V = acceleration x time
= 23.8 m/s² x 5s
= 119 m/s
Hence the speed of the block after 5 seconds of movement will be: 119 m/s.
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See full text below
The block in the figure is at rest when the forces begin to act.
F₁ = 25N
F, = 22.6 N
m = 2kg
to. Find the value of the resultant force.
b. Determine its acceleration.
C. Calculate the speed of the block after 5 seconds of movement.
A rectangular prism has a square top and bottom and is 8cm tall. If the surface area is 72 square centimeters, determine its volume.
Answer:
576
Step-by-step explanation:
base times height
so 72*8
which is 576
Write an expression for the perimeter of the house use the work you completed in parts A and B to guide you (the numbers in the photo is Part A and B)
Answer:
The total length of Valerie’s walls is (2.5 × 4) + (21.25 × 3) + 32.
The total length of Seth’s walls is 3.5 + (22.75 × 2) + 58.
To find the expression for the perimeter of the house, add Valerie’s expression to Seth’s:
(2.5 × 4) + (21.25 × 3) + 32 + 3.5 + (22.75 × 2) + 58.
Step-by-step explanation:
its the platho answer so change it a bit
3
8
13
24
53
123
213
Answer:
321 is the next number that comes in the calculator.
Is. She analyzes
st.
Martha graphs the data for the number of bracelets made, a, and the number of beads used,
y, and draws a line through the points.
Number of Beads Used
600
500
400
300
200
100
0
Bracelets Made
versus Beads Used
(31, 651)
(23, 483).
(10, 210)
5 10 15 20 25 30 35
Number of Bracelets Made
Write an equation that represents the relationship between the number of bracelets made
and the number of beads used. Show or explain how you found the slope and y-intercept.
Enter your equation and your work or explanation in the space provided.
You may use the drawing box to add a drawing to help explain your answer.
A
7
44
▶
Exhibits
P
The equation for the relationship between the number of bracelets made and the number of beads is y = 21x.
First, the rate of change
= (483 - 210) / (23 - 10)
= 273 / 13
= 21
So, the equation for the relationship between the number of bracelets made and the number of beads used.
(y - 210) = 21 (x- 10)
y - 210 = 21x - 210
y = 21x
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choose the general algebraic representation (notation) for transforming pentagon vwxyz into pentagon qrstu.
The transformation function can be represented as vwxyz \($\rightarrow$\)qrstu = (v,w,x,y,z) \($\rightarrow$\) (q,r,s,t,u).
This algebraic representation of the transformation of pentagon vwxyz into pentagon qrstu is using the notation of a function. A function takes an input (in this case, the coordinates of pentagon vwxyz) and produces an output (in this case, the coordinates of pentagon qrstu). This transformation can be represented by the notation (v,w,x,y,z) \($\rightarrow$\) (q,r,s,t,u). This notation means that the coordinates (v,w,x,y,z) are being transformed into the coordinates (q,r,s,t,u). This notation is a concise way of expressing the transformation of pentagon vwxyz into pentagon qrstu. It is important to note that the transformation itself is not specified; the notation is simply used as a way of representing the transformation.
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andy’s saving account pays 0.3% more interest then marty’s. martys account earns 200 in interest. how much does interest does andy’s account earn?
1. 200.60
2. 203.00
3. 206.00
4. 230.00
200.60 interest does andy’s account earn.
Let x be the amount of interest earned by Andy's account.
According to the problem, Andy's account earns 0.3% more interest than Marty's account, which means that Andy's account earns the same amount plus an additional 0.3% of that amount. Mathematically, we can express this as:
x = 200 + 0.3% of 200
Simplifying the right-hand side of the equation, we get:
x = 200 + 0.003 × 200
x = 200.60
Therefore, the answer is option 1: 200.60.
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60ft by 60ft wall and a mirror that’s 60ft by 20ft the mirror covers wat percent of the wall?
Answer:
okay, so we have a wall that is 60 ft. The area of the wall because the wall is a square is just side squared. So the area of the wall is \(60^{2}\), which is 30 600 square feet. The mirror is 20 ft by 60 ft. So the area of the mirror, because its a rectangle is length times width, so that's 20 a 60 so 20 x 60 is gonna give me 1200 square feet. So if we take the area of the mirror and put that over the area, the wall we get 1200 over 30 600, which reduces to one over three. So the mirror is one third the area of the wall.
Step-by-step explanation:
ANYONE PLEASE HELP please i really needa answer this on time
Answer:
Line AB and the last AB
Step-by-step explanation:
math math math math math math math
The angle m∠JIX is 90 degrees.
How to find angles in line intersection?IX is perpendicular to IJ. Therefore, angle m∠JIX is 90 degrees.
IG bisect CIJ. Hence,
m∠CIG ≅ m∠GIJ
Therefore,
m∠CIX = 150 degrees
Hence, let's find m∠JIX.
Therefore, m∠JIX is 90 degrees because IX is perpendicular to IJ. Perpendicular lines forms a right angle.
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The measure of angle m∠JIX is estimated to be 90⁰.
How to find the angles?You should understand that an angle is a figure formed by two straight lines or rays that meet at a common endpoint, called the vertex.
IX is perpendicular to IJ. Therefore, angle m∠JIX is 90⁰.
Frim the given parameters,
IG⊥CIJ.
But; m∠CIG ≅ m∠GIJ
⇒ m∠CIX = 150⁰
Hence, let's find m∠JIX.
Therefore, m∠JIX is 90⁰ because IX is perpendicular to IJ. Perpendicular lines forms a right angle.
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I have another riddle.
If you buy one rabbit and a rabbit can produce 5 per year, then how many rabbits will you have in 9 years?
Total number of rabbits produced in 9 years will be 45.
What is Equation Modelling?
Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
Given is a rabbit can produce 5 new rabbits per year
Total number of rabbits produced in 9 years will be -
n = 5y = 5 x 9 = 45 new rabbits
Therefore, total number of rabbits produced in 9 years will be 45.
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What do you divide by 90 to get 30?
Answer:
3
Step-by-step explanation:
3 times 30 = 90 then divide 90 and 30 you get 3
An athlete eats 90 grams of protein per day while training. How much is this in milligrams (mg)?
Answer:
90,000 Mg would be the amount of protein.