The size of a matrix is defined by the number of rows and columns that it contains.
The dimensions of a matrix are the number of rows by the number of columns.
The number of rows and columns of a matrix, written in the form rows×columns.
The given Matrix has four rows and three columns,
The rows go side to side; the columns go up and down. "Row" and "column" are technical terms, and are not interchangeable.
Matrix dimensions are always given with the number of rows first, followed by the number of columns.
The matrix is a [4_] × [3_] matrix.
Tickets for a concert sold for $8 for floor seats and $6 for balcony seats. For one performance, 400 tickets were sold, bringing in $2,888. How many of each ticket were sold?
BRAINLIEST FOR BEST ANSWER
after earning $17 in interest bob bank account has $143 how many dollars were in the account to start with
Convert the angle \theta=\dfrac{23\pi}{20}θ= 20 23π theta, equals, start fraction, 23, pi, divided by, 20, end fraction radians to degrees
For this case we have the following angle in radians:
[tex] theta = \frac{23\pi}{20} [/tex]
The first thing you should know to answer the question is the following conversion:
π radians = 180 degrees
Applying the conversion to the given angle we have:
[tex] theta = \frac{23\pi}{20}*\frac{180}{\pi} [/tex]
Rewriting we have:
[tex] theta = 207 [/tex]
Answer:
the angle measured in degrees, it is given by:
[tex] theta = 207 [/tex]
Solve for x
2/(7x) = 6/5
5/21
-21/5
21/5
I don't know
- 5/21
Zero is a solution of (-1 < x < 1).
A. True
B. False
PLEASE HELP!
Fine Line Trucks rents an 18-ft truck for $42 per day plus 35¢ per mile. Judy needs a truck for one day to deliver a shipment of plants. However, she only has a budget of $70.
a) Set up an equation that models this information.
b) How many miles can Judy drive to stay within her budget?
Find the Area of the figure
A circular test track for cars has a circumference of 2.7km . A car travels around the track from the southernmost point to the northernmost point. What distance does the car travel? (answer 1.35km). Part B !!!!!!!What is the car's displacement from its original position?,
In a circle with a radius of 6 m, an arc is intercepted by a central angle of 7π4 radians.
What is the arc length?
Use 3.14 for π .
Answer:
Arc length = 32.97 m .
Step-by-step explanation:
Given : In a circle with a radius of 6 m, an arc is intercepted by a central angle of 7π/4 radians and use 3.14 for π .
To find : What is the arc length.
Solution : We have given a circle of radius = 6 m
Central angle = 7π/4
Formula of arc length = radius × central angle .
Arc length = 6 × ([tex]\frac{7(3.14)}{4}[/tex]).
Arc length = 32.97 m .
Therefore, Arc length = 32.97 m .
A harris poll found that 35% of people said that they drink a caffeinated beverage to combat midday drowsiness. a recent survey found that 19 out of 48 randomly selected people stated that they drank a caffeinated beverage to combat midday drowsiness. at latex-8e4a9cff882bfbfe876f36fb5b4c08e8_5a945b8082ee7.png, is the claim of the percentage found in the harris poll believable?
To determine the believability of the Harris Poll's claim that 35% use caffeine to combat drowsiness, a hypothesis test for proportions is needed. The sample proportion of 39.58% from the recent survey would be tested against the null hypothesis of 35% using a z-score calculation. Depending on if the z-score falls within the critical region, we can either reject or fail to reject the null hypothesis.
Explanation:To determine if the claim of the percentage found in the Harris Poll is believable based on the recent survey, we can conduct a hypothesis test for proportions. The null hypothesis (¿¿H₀) is that the true proportion of people who drink a caffeinated beverage to combat midday drowsiness is 35%, as stated by the Harris Poll. The alternative hypothesis (¿¿H₁) would be that the true proportion is different from 35%.
We use the information that 19 out of 48 randomly selected people stated that they drank a caffeinated beverage for midday drowsiness, which gives us a sample proportion of approximately 39.58%. To test this, we can calculate the z-score for the sample proportion and compare it to the critical value for α = 0.05 (two-tailed test). If the calculated z-score falls within the critical region, we reject the null hypothesis, indicating that the Harris Poll's claim is not believable. However, if the z-score is outside the critical region, we do not have enough evidence to reject the null hypothesis, and thus the claim is considered believable.
To perform this test, we would need to calculate the standard error for the proportion, z-score, and then compare the z-score to the appropriate critical value. Without performing the calculations here, we cannot definitively conclude about the believability of the Harris Poll's percentage claim. However, a statistician would run these numbers to reach a conclusion.
Please help?
What is m V?
Round only your final answer to the nearest tenth.
The answer would be 53.9
Which polynomial is in standard form
what is the value of x will mark brain list 20 extra points
Picture included!
Can someone help me with these 2 questions please?
While hovering near the top of a waterfall in a national park at 46244624 feet, a helicopter pilot accidentally drops his sunglasses. the height h left parenthesis t right parenthesish(t) of the sunglasses after t seconds is given by the polynomial function h left parenthesis t right parenthesis equals negative 16 t squared plus 4624h(t)=−16t2+4624. when will the sunglasses hit the ground?
The set of life spans of an appliance is normally distributed with a mean mc013-1.jpg = 48 months and a standard deviation mc013-2.jpg = 8 months. What is the life span of an appliance that has a z-score of –3?
The life span of an appliance that has a z-score of –3 is 24 months if the set of life spans of an appliance is normally distributed with a mean is 48 months and a standard deviation is 8 months.
What is Z-test?The Z test is a parametric procedure that is used on data that is dispersed in a normal fashion. For testing hypotheses, the z test can be used on one sample, two samples, or proportions. When the population variance is known, it analyzes if the means of two big groups are dissimilar.
We have:
Z = -3,
[tex]\rm \mu = 48[/tex]
[tex]\sigma = 8[/tex]
We know the formula for the Z-score:
[tex]\rm Z = \frac{X-\mu}{\sigma}[/tex]
[tex]\rm-3= \frac{X-48}{8}[/tex]
-24 = X - 48
X = 24 months
Thus, the life span of an appliance that has a z-score of –3 is 24 months if the set of life spans of an appliance is normally distributed with a mean is 48 months and a standard deviation is 8 months.
Learn more about the Z-test here:
brainly.com/question/15683598
#SPJ3
4. Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.
Two lines that intersect at right angles are perpendicular.
(1 point)
The statement is not reversible.
Yes; if two lines intersect at right angles, then they are perpendicular.
Yes; if two lines are perpendicular, then they intersect at right angles.
Yes; two lines intersect at right angles if (and only if) they are perpendicular.
4. Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.
Two lines that intersect at right angles are perpendicular.
(1 point)
The statement is not reversible.
Yes; if two lines intersect at right angles, then they are perpendicular.
Yes; if two lines are perpendicular, then they intersect at right angles.
Yes; two lines intersect at right angles if (and only if) they are perpendicular.
@Mathematics
Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.
Two lines that intersect at right angles are perpendicular.
A. The statement is not reversible.
B. Yes; if two lines intersect at right angles, then they are perpendicular.
C. Yes; if two lines are perpendicular, then they intersect at right angles.
D. Yes; two lines intersect at right angles if (and only if) they are perpendicular.
Answer:
Yes; two lines intersect at right angles if (and only if) they are perpendicular.
Step-by-step explanation:
In a biconditional statement, both parts have to be true. In this case, if the two lines intersect at a right angle then they are perpendicular, and if they are perpendicular then they intersect at a right angle
Devin borrowed $1,058 at 13 percent for nine months. What will he pay in interest?
A. 103.16
B.105.80
C.137.54
D.122.40
Devin borrowed $1,058 at 13 percent for nine months.
We have to calculate the interest paid.
Interest = [tex] \frac{P \times R \times T}{100} [/tex]
Substituting the values of
Principal = $1058
Rate = 13%
Time = 9 months = [tex] \frac{9}{12} [/tex] year
Interest = [tex] \frac{1058 \times 13 \times 9}{12 \times 100} [/tex]
Interest = 103.155
= 103.16
So, Devin will pay 103.16 as the interest.
Therefore, Option A is the correct answer.
a) The volleyball reached its maximum height after 3 seconds.
b) The maximum height of the volleyball was 23 feet.
c) If the volleyball is not returned by the opposing team, it will hit the ground in
5.5 seconds.
d)The graph that models the volleyball's height over time is exponential.
e) The volleyball was served for a height of 5 feet.
HELP!!!!!!!!!!!!!!
The ratio of the side length of Square A to the side length of Square B is 4:9. The side length of Square A is 12 yards. What is the perimeter of Square B?
what is the slope of the line that contains the points (-1,2) and (3,3)?
A. -1/4
B. 1/4
C. 4
D. -4
the slope of the line is letter B) 1/4....
The slope of the line that contains the points (-1,2) and (3,3) is calculated using a specific formula. After performing the calculation, the result is 1/4.
Explanation:The slope of a line is calculated using a specific formula based on line's points: (y2 - y1) / (x2 - x1), where (x1,y1) and (x2,y2) are the coordinates of two distinct points on the line. In this case, the points given are (-1,2) and (3,3).
Let's substitute into the formula:
(3 - 2) / (3 - (-1)) = 1 / 4.
Therefore, the slope of the line that contains the points (-1,2) and (3,3) is 1/4, which corresponds to answer choice B.
Learn more about Slope of a Line here:https://brainly.com/question/34207674
#SPJ11
Which property is demonstrated below
Answer:
associative property of multiplication
Step-by-step explanation:
edge 2021
PLEASE HELP ASAP!!! WILL GIVE BRAINLIEST FOR BEST/RIGHT ANSWER!!!!!!!!
Which of the following is the solution of 5e^2x-4=11
The solution of the equation will be x = (ln 3) / 2. Then the correct option is C.
What is the solution of the equation?The solution of the equation means the value of the unknown or variable.
The equation is given below.
5e²ˣ – 4 = 11
On simplifying, we have
5e²ˣ = 15
e²ˣ = 3
Taking log on both sides, then we have
2x ln e = ln3
We know ln e = 1, then we have
2x = ln 3
x = (ln 3) / 2
Then the correct option is C.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ2
How can categorical data for two categories be summarized?
What is the area of this triangle?
A=bh2
24 in²
30 in²
48 in²
96 in²
Right triangle with height labeled 8 inches, base labeled 6 inches, and third side labeled 10 inches.
State the property that justifies the statement:
If 3x = 6, then x = 2
a. Subtraction Property of Equality
b. Addition Property of Equality
c. Division Property of Equality
d. Multiplication Property of Equality
Given that AD and BC are parallel, find the value of x.
a. 15
b. 5
c. 12.5
d. 17.5
Raina is fertilizing her garden. The garden is in the shape of a rectangle. Its length is
15 feet and its width is 13
feet. Suppose each bag of fertilizer covers 39
square feet. How many bags will she need to cover the garden?
Answer: 5 bags
Step-by-step explanation:
If tan theta= 15/8, then:
A. sec theta = 17/8
B. cos theta = 15/17
C. cot theta = 8/15
D. csc theta = 17/15
There's potentially more than one answer.,
Answer:
secᎾ=17/8
cotᎾ=8/15
cscᎾ=17/15
Step-by-step explanation: