Answer:
C
Step-by-step explanation:
The y intercept is the -10 and the slope is 3x.
Answer:
y=3x-10
Step-by-step explanation:
we have the y intercept -10 and slope 3 we know the equation of line in slope -intercept from
y=mx+b
where m is slope and b is y-intercept
so the final equation wld be y=3x-10
Matthew receives a base weekly salary of $300 plus a commission of $50 each vacuum he sells what is the equation that models his weekly earnings?Graph this equation.
Answer:
weekly earnings = 300+50x
Step-by-step explanation:
x is vacuums sold
Hannah works at blooming bouquets
Answer:
The answer is 40 carnations
Step-by-step explanation:
if danielle still drove 24 miles on the eight day how many miles would tim need to drive to make the median amount of miles that tim and danielle drove the same?
Answer:
the answer would be she would drive 192 miles
Students in a math class recorded the number of text messages they received the previous day. how many students received at least 10 messages?
Answer:
14 students
Step-by-step explanation:
You didn't include a graph, so I looked up the question to find the graph you are likely talking about.
If this graph does not match, ignore my answer (although the question is exactly the same so I'm guessing it might be the same)
{even if different , conceptually, here is what you do: }
Receiving at least 10 messages includes those who receive 10 messages.
Each X represents 1 student. So, 3 students received exactly 10 messages.
3 (who received 10)
2 (who received 15)
4 (who received 20)
5 (who received 25)
+________
14 students
14 students received ≥ 10 messages
(≥ means greater than or equal to,
< is less than (less < more)
> is greater than (more > less)
the line under includes the value _ (same or more ≥ than this value ; same or less ≤ than this value)
hope this helps you !!
Coach De Leon purchases sports equipment. Basketballs cost $20.00 each, and soccer balls cost $18.00 each. He had a budget of $150.00. Part A: Use the drop downs to create an inequality that represent the situation. Let s represent the number of soccer balls and let b represent the number of basketballs. 18s+20b > 150 Part B: Given the coach's budget, which of the following is a viable option for the equipment he can purchase? 4 basketballs and 6 soccer balls 5 basketballs and 2 soccer balls 2 basketballs and 7 soccer balls 6 basketballs and 5 soccer balls
Answer:
5 basketballs and 2 soccer balls
Step-by-step explanation:
5 times 20= 100
2 times 18= 36
equals 136
4 basketballs and 6 soccer balls- wrong-185
2 basketballs and 7 soccer balls-wrong-166
6 basketballs and 5 soccer balls- wrong- over 200
Answer:
The Inequality Equation is
20b + 18s <_ 150
5 Basketballs and 2 Soccer Balls
Step-by-step explanation:
a worker in the automobile industry works an average of 44.2 hours per week. if the distribution is approximately normal with a standard deviation of 1.8 hours, what is the probability that a randomly selected automobile worker works less than 41 hours per week? round the final answer to at least four decimal places and intermediate z value calculations to two decimal places.
The probability that a randomly selected automobile worker works less than 41 hours per week is 0.0383 (or 3.83% when expressed as a percentage).
The given information can be represented by the following formulas:
Mean μ = 44.2
Standard deviation σ = 1.8
Now, for the probability that the randomly selected automobile worker works less than 41 hours per week.
P(X < 41) = ?
The formula for calculating Z-score is given by
Z = (X - μ) / σ
Where,
X = 41
μ = 44.2
σ = 1.8
Substituting the values in the formula, we get,
Z = (41 - 44.2) / 1.8 = -1.777778
Now, we need to find out the probability of a Z-score of -1.78 from the normal distribution table.
The probability can be calculated by subtracting the value of the Z-score from 0.5 and looking up the remaining value in the standard normal table.
P(Z < -1.78) = 0.0384
Therefore, the probability that a randomly selected automobile worker works less than 41 hours per week is 0.0384.
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A line that includes the point (-1,5) has a slope of 4. What is its equation in slope-intercept
form?
Answer:
y=4x+9
Step-by-step explanation:
The slope intercept form is \(y=mx+b\)
So m=4 and we plug it into the equation \(y=4x+b\)
Since there are x point is -1 and y point is 5 we plug those in replacing the corresponding variables \(5=4(-1)+b\)
So the equation becomes \(5=4+b\)
We add 4 to both sides \(5=4+b\\+4=+4\) so 9 equals b
Then we rewrite the whole equation as \(y=4x+9\)
Calculate the length of the unknown side of this right-angled triangle.
9 cm
8 cm
Answer:
12.04
Step-by-step explanation:
Solve the differential equation by variation of parameters.
y'' + y = sin2 x
The solution to the differential equation y'' + y = sin2x is y = -2sin2x + (Acos2x + Bsin2x).
This differential equation can be solved by the method of variation of parameters. This method involves finding two arbitrary functions, U and V, such that U' = V and V' = -U + sin2x, so that the general solution of the differential equation is y = U + V. Solving the two equations yields U = Acos2x + Bsin2x and V = -2sin2x, where A and B are arbitrary constants. Substituting U and V into the general solution of the differential equation yields the final solution y = -2sin2x + (Acos2x + Bsin2x).
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1 point
A rectangular room measures 13 feet by 16 feet. You want 1/3rd of it to turn into a new half bathroom. How much sq feet is left to the nearest whole sq foot?
A) 155 sqft
B) 188 sq ft
C) 139 sq ft
D) 88 sq ft
Answer:
D
Step-by-step explanation:
13x16=208
208/3= 69 reapeated.
factor the polynomial below completely.
z^2 + 9z + 20
Answer:
Step-by-step explanation:
z^2+9z+20
=z^2+(5+4)z+20
=z^2+5z+4z+20
=z(z+5)+4(z+5)
=(z+5)(z+4)
Find the velocity, acceleration, and speed of a particle with the given position function.
r(t) = 9 cos t, 8t, 9 sin t
|v(t)| =
The velocity, acceleration, and speed of the particle are:
velocity vector: v(t) = (-9 sin t) i + (8) j + (9 cos t) k
acceleration vector: a(t) = (-9 cos t) i + 0 j + (-9 sin t) k
speed: |v(t)| = sqrt((-9 sin t)^2 + (8)^2 + (9 cos t)^2)
To find the velocity, acceleration, and speed of the particle with the given position function, we need to differentiate the position function with respect to time.
r(t) = (9 cos t) i + (8t) j + (9 sin t) k
The velocity vector is the first derivative of the position vector with respect to time:
v(t) = r'(t) = (-9 sin t) i + (8) j + (9 cos t) k
The speed is the magnitude of the velocity vector:
|v(t)| = sqrt((-9 sin t)^2 + (8)^2 + (9 cos t)^2)
The acceleration vector is the second derivative of the position vector with respect to time:
a(t) = r''(t) = (-9 cos t) i + 0 j + (-9 sin t) k
Therefore, the velocity, acceleration, and speed of the particle are:
velocity vector: v(t) = (-9 sin t) i + (8) j + (9 cos t) k
acceleration vector: a(t) = (-9 cos t) i + 0 j + (-9 sin t) k
speed: |v(t)| = sqrt((-9 sin t)^2 + (8)^2 + (9 cos t)^2)
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A coin is tossed, a number cube is rolled, and a letter is picked from the word framer. 10. P(tails, 5, m)
Answer: The function you provided describes an experiment in which a coin is tossed, a number cube is rolled, and a letter is picked from the word "framer". The outcome of the experiment is represented by the ordered triple (tails, 5, m).
P(tails, 5, m) refers to the probability of the outcome (tails, 5, m) occurring. To find this probability, you would need to know the probability of each individual event:
The probability of getting tails is 1/2,
The probability of getting a 5 on a number cube is 1/6
and probability of getting letter "m" in the word "framer" is 1/6
So P(tails, 5, m) = (1/2) * (1/6) * (1/6) = 1/72
It is to be noted that in order for the inverse function to exist, the function must be one-to-one, meaning each y value has one unique x value, meaning the random variables in question should be independent. But in this case the events are dependent on one another.
Step-by-step explanation:
the formula P = m/v, where p = density m = mass and v = volume , is used to calculate density solve this formula for m
Answer:
m = Pv
Step-by-step explanation:
You can multiply both sides by v to get M by itself.
P = m/v (Multiply by v)
Pv = m
whats the volume (5 points)
A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below. \( 87,87,215,154,288,235,231 \) Find the median number of newspapers sold.
The median number of newspapers sold over seven weeks is 223.
The median is the middle score for a data set arranged in order of magnitude. The median is less affected by outliers and skewed data.
The formula for the median is as follows:
Find the median number of newspapers sold. (87, 87, 215, 154, 288, 235, 231)
We'll first arrange the data in ascending order.87, 87, 154, 215, 231, 235, 288
The median is the middle term or the average of the middle two terms. The middle two terms are 215 and 231.
Median = (215 + 231)/2
= 446/2
= 223
In statistics, the median measures the central tendency of a set of data. The median of a set of data is the middle score of that set. The value separates the upper 50% from the lower 50%.
Hence, the median number of newspapers sold over seven weeks is 223.
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Nikolai was curious if he could predict how many "likes" an internet video received based on how many views the video had. He took a random sample of videos and noticed a positive linear relationship between number of views and number of likes (both in thousands). Here is computer output from a least-squares regression analysis on his data:
Which of these is an appropriate least-squares equation for this model?
Answer:
likes
=0.420+0.034(views) (B) on khan academy
Step-by-step explanation:
The ratio of a to b is 4/7. If a is 16, find the value of b.
Answer:
B=28
Step-by-step explanation:
A pyramid has a base that is a right triangle with legs measuring 10 cm and 14 cm. The height of the pyramid is 9 cm.
The volume of the pyramid is ___ cubic cm.
a student takes a true-false test that has 14 questions and guesses randomly at each answer. let x be the number of questions answered correctly. find p(5) group of answer choices 0.0001 0.0611 0.1833 0.1222
The probability to answer 5 questions correctly from 14 true or false questions is 0.1222
The given situation represents a binomial experiment, where there are only two possible outcomes for each trial: success (answering correctly) and failure (answering incorrectly). To find the probability of a particular number of successes, we use the binomial probability formula:
P(x)= nCx × p^x × q^(n-x)
Where, n is the total number of trials, p is the probability of success on each trial, q is the probability of failure on each trial (1-p), and x is the number of successes desired.
n = 14 (total number of questions)
p = 1/2 (probability of answering correctly when guessing randomly), and q = 1/2 (probability of answering incorrectly when guessing randomly).
To find P(5), we substitute these values in the formula
P(5) = 14C5 * (1/2)^5 * (1/2)^9= 2002 * (1/32) * (1/512)= 2002 / 16384≈ 0.1222
Therefore, the answer is option D, 0.1222.
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The length of a rectangle is 3 inches less than 7 times its width. If the perimeter is 58 inches, find the width of the rectangle.
→ Let the width of the rectangle = x inches
∵ The length of the rectangle is 3 less than 7 times the width
∴ The length of the rectangle = 7(x) - 3
→ The perimeter of the rectangle P = 2(length + width)
\(\begin{gathered} \because P=2(7x-3+x) \\ \therefore P=2(8x-3) \\ \therefore P=2(8x)-2(3) \\ \therefore P=16x-6 \end{gathered}\)∵ The perimeter is 58 inches
\(\therefore16x-6=58\)→ Add 6 to both sides
\(\begin{gathered} \because16x-6+6=58+6 \\ \therefore16x=64 \end{gathered}\)→ Divide both sides by 16 to find x
\(undefined\)The perimeter of a quarter circle is 35.7 millimeters. What is the quarter circle's radius?
Answer:
r = 10 mm
Step-by-step explanation:
Formula of a quater circle perimeter: P = ( \(\frac{\pi }{2}\) + 2 )r
You substitute the given perimeter then you'll have something that looks like this : 35.7 = (\(\frac{\pi }{2}\)+2)r
Then you divide both sides by (\(\frac{\pi }{2}\)+2) to get the answer
anyone please appreciate yall x
Answer:
h = 2.5 cm
Step-by-step explanation:
The volume (V) of the prism is calculated as
V = Ah ( A is the area of the triangular end, h is the length of prism )
Here V = 35 and h = 7, thus
7A = 35 ( divide both sides by 7 )
A = 5 cm²
Thus
A = \(\frac{1}{2}\) × 4 × h = 5
2h = 5 ( divide both sides by 2 )
h = 2.5 cm
HELP I DON'T WANNA GET THIS ONE WRONG
Which letter has rotational symmetry?
A. Q
B. H
C. G
D. A
Answer: (B). H
Step-by-step explanation:
Got it ?
IQ
GPA
ia
SAT
115
3.4
115
1440
84
2.1
84
780
In this assignment, you will be comparing two data
sets. The first data set shows the relationship of GPA
and IQ scores. The second data set compares SAT
scores and IQ scores.
In the scatterplots for both sets of data, the
independent variable is
111
3.1
111
1120
120
3.8
120
1560
105
2.8
105
1240
98
2.6
98
1200
96
96
1000
88
88
920
It
Answer:
The answer is IQ
Step-by-step explanation:
Edge 2021
If A is a 3 x 8 matrix, what is the minimum and maximum possible value of nullity(A)? The smallest possible value of nullity(A) is The largest possible value of nullity(A) is
The smallest possible value of nullity(A) is 0, and the largest possible value of nullity(A) is 8.
The nullity of a matrix is the dimension of its null space, which represents the set of vectors that satisfy the equation A * x = 0, where A is the matrix and x is a vector.
The nullity of a matrix can range from 0 to the number of columns in the matrix. In this case, since A is a 3 x 8 matrix, the minimum possible value of nullity(A) is 0, indicating that the null space is trivial and contains only the zero vector. This occurs when the matrix is full rank, meaning that its columns are linearly independent.
On the other hand, the maximum possible value of nullity(A) is 8, which would occur if the matrix has rank 0. In this case, all the columns of the matrix are linearly dependent, and the null space spans the entire vector space of size 8.
Therefore, the smallest possible value of nullity(A) is 0, and the largest possible value of nullity(A) is 8.
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which answer is an example of volunteer sampling? responses asking every fifth person their age asking every fifth person their age counting everyone who attends a game counting everyone who attends a game submitting an online survey submitting an online survey asking your neighbors if they approve of the mayor
Submitting an online survey is one example of volunteer sampling.
What exactly does volunteer sampling imply?When researchers look for volunteers to participate in studies, they use voluntary sampling. Volunteers can be recruited in person, online, through public postings, and through a variety of other means. When using voluntary sampling, a researcher usually makes little effort to control the sample composition.
The customer satisfaction survey is a common form of voluntary sampling. When a company provides a service or a product, it frequently asks customers to rate their satisfaction. The sample is voluntary and biased because the company asks all customers to volunteer their opinions.
Researchers in academia frequently seek volunteer samples by asking students to participate in research or by looking for people in the community. Volunteer samples are used for a variety of different types of research because they are inexpensive.
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Please answer correctly! I will mark you as Brainliest!
Multiply the length by width by the height/3
7 x 6 x 8/3 = 112 in^2
The answer is 112 in^2
Answer:
112
Step-by-step explanation:
find the value of x +65+115+115
Answer:
65
Step-by-step explanation:
65 because they alternate
AB=BA
65=115
115=65
idrk if tht makes sense tho lol
I need help with this plz
Step-by-step explanation:
I hope the picture is clear enough.
Answer:
Ron to Bill = 67 yd
Bill to John = 30 yd
Total number of yards = 97 yd
Step-by-step explanation:
See the figure below.
Use the Pythagorean theorem to find the distance from Ron to Bill.
a² + b² = c²
60² + 30² = c²
c² = 3600 + 900
c² = 4500
c = √4500
c = 67
Ron to Bill = 67 yd
Bill to John = 30 yd
Total number of yards = 97 yd