Mr. Gottfried teaches two math classes. The table shows the frequencies of
different grade levels for students in his classes.
Which matrix represents the data from the table?
Answers
Answer:
I believe it is A
Step-by-step explanation:
Related Questions
A real-estate agent conducted an experiment to test the
effect of selling a staged home vs. selling an empty
home. To do so, the agent obtained a list of 10
comparable homes just listed for sale that were currently
empty. He randomly assigned 5 of the homes to be
"staged," meaning they were filled with nice furniture and
decorated. The owners of the 5 homes all agreed to
have their homes staged by professional decorators.
The other 5 homes remained empty. The hypothesis is
that empty homes are not as appealing to buyers as
staged homes and therefore, sell for lower prices than
staged homes. The mean selling price of the 5 empty
homes was $150,000 with a standard deviation of
$22,000. The mean selling price of the 5 staged homes
was $175,000 with a standard deviation of 35,000. A
dotplot of each sample shows no strong skewness and
no outliers.
Answers
Answer: t-test for a difference in means
Step-by-step explanation:
edg 2021
The name of the appropriate inference procedure is a t-test for a difference in means.
What is a t-test?A t-test can be defined as a type of inferential statistic which is typically used to compare and show a significant difference between the means of two (2) groups that are drawn from a normally distributed data set (population).
This ultimately implies that, the name of the appropriate inference procedure to conduct a hypothesis test in this scenario is a t-test for a difference in means.
Read more on t-test here: https://brainly.com/question/6589776
#SPJ2
You drop a ball from a height of 1.5 meters. Each curved path has 74% of the height of the previous path.
a. Write a rule for the sequence using centimeters. The initial height is given by the is term n = 1.
b. What height will the ball be at the top of the sixth path?
1) A(n) = 1.5 • (0.74)^x-1; 0.33cm
2)A(n) = 0.74 • (1.5)^x-1; 5.62cm
3) A(n) = 150•(0.74)^x-1; 33.29cm
4) A(n) = 150 • (74) ^x-1; 332,850,993,600cm
Answers
Answer:
[tex](a)\ A(n) = 150 * (0.74)^{n-1[/tex]
[tex](b)\ A(6) = 33.29cm[/tex]
Step-by-step explanation:
Given
[tex]a = 1.5[/tex] --- initial
[tex]b = 74\%[/tex] --- rate
Solving (a): The rule of the sequence
First convert [tex]a = 1.5[/tex] to centimeters
[tex]a = 1.5 * 100[/tex]
[tex]a = 150[/tex]
The equation is then calculated using the following geometric progression formula
[tex]A(n) = ab^{n-1}[/tex]
This gives:
[tex]A(n) = 150 * (74\%)^{n-1}[/tex]
Express percentage as decimal
[tex]A(n) = 150 * (0.74)^{n-1[/tex]
Solving (b): The height on the 6th path
This implies that:
[tex]n = 6[/tex]
So, we have:
[tex]A(6) = 150 * (0.74)^{6-1[/tex]
[tex]A(6) = 150 * (0.74)^5[/tex]
[tex]A(6) = 150 * 0.222[/tex]
[tex]A(6) = 33.3cm[/tex]
Swel 2.) Mental Math: 20 - 12.45 Your answer
Answers
Answer:
7.55
Step-by-step explanation:
Is this a school thing or just for random brainly users?
I need help pls hurrrryyyyyyyy
Answers
Answer: 48
Step-by-step explanation:
30-2 is 28 and 4 times 4 times 5 is 80 and 2 times 2 is 4 and 80 divided by 4 a 20 and 28 plus 29 is 48.
Round to the nearest hundredth (2 decimal places) when necessary
Answers
Answer:
if ur asking for area, it is 193.52 ft²
Step-by-step explanation:
16.4 x 11.8
Answer:
193.52 ft is the area
hope this helps
have a good day :)
Step-by-step explanation:
Check picture, 7th grade work.
Answers
What are the zeros of this function (g)(x)=3x^2-33x-180
Answers
Answer:
3x²-33x-180=3(x²-11x-60)=3(x-15)(x+4)
The roots are x-15=0, x=15 and x+4=0, x=-4
3(x² - 11x - 60) = 0
3(x - 15)(x + 4) = 0
(x - 15)(x + 4) = 0
x - 15 = 0 or x + 4 = 0
x = 15 or x = -4
The double number line shows that in 2 minutes, Pogo the dog can fetch a frisbee 6 times.
0
Time
{
(minutes)
2
+
+
+
Fetches
0
6
Based on the ratio shown in the double number line, how many times will Pogo fetch the frisbee in 4
minutes?
times
Do 4 problems 0000
Answers
Answer: try mat way
Step-by-step explanation:
Mai says that the equation 2x+2=x+1 has no solution because the left hand side is double the right hand side. Do you agree with Mai? Explain your reasoning.
Answers
Answer:
i do
Step-by-step explanation:
the equation would be no solution if the sides are equal numbers with the same slope and do not intersect. if you plug in a random number such as 7 for x you would get 16 = 8. always making the numbers parrallel
At an ice cream shop, there are 3 different flavors of ice cream and 10 different toppings. How many different outcomes are possible?
Answers
Answer:
30 or 1/30
Step-by-step explanation:
243.6 ÷ ________ = 02.436
Answers
Answer:
...........100.........
Step-by-step explanation:
243.6 ÷100=2.436 we don't use 0 before positive number
Using the identity sin²theta + cos²theta = 1, find the value of tan , to the nearest hundredth, if cos theta = 0.57 and 0 < theta <
π/2
Answers
Answer:
tan*=sin*/cos*
sin*=1-(0.57)^2
sin*=0.6751
tan*=0.57/0.6751
=0.844
Helen bought 1 pint of fruit juice. What is the quantity of fruit juice bought by her in fluid ounces?
A. 10 fl. oz.
B. 12 fl. oz.
C. 16 fl. oz.
D. 20 fl. oz.
Answers
A. 10 fl. oz.
B. 12 fl. oz.
C. 16 fl. oz.
D. 20 fl. oz.
Answer:
C. 16 fl. oz.
Step-by-step explanation:
hope this helps.
A parallelogram has a height of 3 feet and a base of 4 feet. What is the area parallelogram?
pls answer fast
Answers
Answer:
Area is always multiplication. 3*4= 12. Area equals 12 feet.
Step-by-step explanation:
There is probably an equation specific to the base (the parallelogram)- use that formula to plug in the numbers to multiply that give you the area.
Help plz
answer 15 points
Answers
Answer:
A
Step-by-step explanation:
-9 must be a bigger number then x and it is a greater then not a greater or equal to sign menaing the circle will be empty and the blue part or x will be to the left of -9
Answer:
A
Step-by-step explanation:
High blood pressure has been identified as a risk factor for heart attacks and strokes. The National Health and Nutrition Examination Survey reported that the proportion of U.S. adults with high blood pressure is 0.3. A sample of 38 U.S. adults is chosen.
(a) Is it appropriate to use the normal approximation to find the probability that more than 40% of the people in the sample have high blood pressure. If so, find the probability. If not, explain why not.
B. A new sample of 80 adults is drawn. Find the probability that more than 40% of the people in this sample have high blood pressure.
C. Find the probability that the proportion of individuals in the sample of 80 who have high blood pressure is between 0.20 and 0.35.
D. Find the probability that less than 25% of the people in the sample of 80 have high blood pressure.
E. Would it be unusual if more than 45% of the individuals in the sample of 80 had high blood pressure?
Answers
You have 48 in a yellow ribbon and 64 inches of red ribbon you want to cut the ribbon into pieces of equal length with no leftovers what is the greatest length of pieces that you can make?
Answers
Answer:
16 inches
Step-by-step explanation:
To determine the answer, you have to find the greatest common factor (GCF) of 48 and 64. This is 16 because 16 x 3 = 48 and 16 x 4 = 64.
what is 50% off 4
What percent 20 of 15 is
Answers
Answer:
$2 and 75%????
Step-by-step explanation:
I'm not 100% sure but I think thats right
Explanation:
Multiply the normal price $4 by 50 then divide it by one hundred. So, the discount is equal to $2.
20% of 15 is 3.
Carol's last credit card statement said that she had an account balance of -$107. Which of the following account balances represents a debt greater than Carol's?
A.
-$60
B.
$60
C.
-$154
D.
$154
Answers
he red figure is similar to the blue figure. Which choice describes a sequence of transformations in which the blue figure is the image of the red figure?
Dilate the triangle with respect to the origin using a scale factor of 12 and then translate it 4.5 units down and 5 units right.
Dilate the triangle with respect to the origin using a scale factor of 2 and then translate it 6 units down and 8 units right.
Dilate the triangle with respect to the origin using a scale factor of 12 and then translate it 6 units up and 8.5 units left.
Dilate the triangle with respect to the origin using a scale factor of 2 and then translate it 9 units up and 9 units left.
Answers
Answer:
Step-by-step explanation:
dilate the triangle with respect to the origin using a scale factor of 2 and then translate it 6 units down and 8 units right.
please helppppp i will mark brianlisttt!!!
Answers
Answer:
37 degrees
Step-by-step explanation:
A triangle has to be 180 degrees so you do 53+90 (because it is a right triangle) equals 143
then do 180-143 to get your final angle of 37
Answer:
37 degrees
Step-by-step explanation:
The degrees of a triangle will add up to equal 180 degrees. A right angle will always be equal to 90 degrees.
Set up an equation:
Variable x = degrees of the acute angle
90 + 53 + x = 180
143 + x = 180
143 - 143 + x = 180 - 143
0 + x = 37
x = 37
The cereal box below is being cut at the edges. Choose the net below that could be created from the box.
Answers
willl give brainlyist
Kevin has two bags. Bag 1 weighs 125 pounds and Bag 2 weighs 97 pounds. How many pounds should Kevin add to Bag 2 so that both bags weigh the same?
A. 28
B. 32
C. 36
D. 42
Answers
Answer:
A) 28
Step-by-step explanation:
x + 97 = 125
x = 28
if one lottery player A wins the jackpot by matching all five distinct numbers drawn in any order from the white balls (1-42) and matching the number on the gold ball (1-34). of one ticket is purchased what is the probability of winning the jackpot?
Answers
Answer:
1/7140
Step-by-step explanation:
42x5=210
210x34=7140
Can you please mark me brainliest? I'm trying to become a Virtuoso.
Find all of the solutions for the following equation. 2 sin q + 1 = 0
Answers
https://socratic.org/questions/how-do-you-solve-2sinx-1-0#270365
What is the volume of the pyramid in the diagram?
25 cm
h = 15 cm
15 cm
20 cm
1,500 cm
2,500 cm
Answers
Answer:
this question answer is 1500cm^3
order these numbers from least to greatest: -5.2, -5, 5.5, -5 1/2, -5/2
Answers
Answer: -5.2, -5 1/2, -5, -5/2, 5.5
Step-by-step explanation:
20 POINTS
Using mathematically precise language, explain in detail how you would multiply the complex number
z1=r1 (cos theta1+isin theta 1)
with the complex number
z2=r2 (cos theta 2+isin theta 2)
r-radius/radii
m-modulus/moduli
theta-argument represent angle theta
Answers
The product complex number is z1z2 = r1r2[cos (θ1+θ2) + isin (θ1+θ2)]
[tex]Z_1\times Z_2= r_1(cos \theta_1 + isin \theta_1) \times r_2(cos \theta_2 + isin \theta_2)[/tex]
r-radius/radii
m-modulus/moduli
theta-argument represent angle theta
[tex]= r_1r_2(cos \theta_1 + i sin \theta_1) (cos \theta_2 + isin \theta_2)[/tex]
[tex]= r_1r_2(cos \theta_1 cos \theta_2 + i cos \theta_1 sin \theta_2 + i sin \theta_1 cos \theta_2 + i^2sin\theta_1sin\theta_2[/tex]
What is the value of i square in complex number?The value of i square is
[tex]i^2=-1[/tex]
Therefore,we get,
[tex]= r_1r_2(cos \theta_1 cos \theta_2 + i cos \theta_1 sin \theta_2 + i sin \theta_1 cos \theta_2 + (-1)sin \theta_1 sin \theta_2)[/tex]
[tex]= r_1r_2(cos \theta_1 cos \theta_2 + i cos \theta_1 sin \theta_2 + i sin \theta_1 cos \theta_2 - sin \theta_1 sin \theta_2)[/tex]
Since we know that,
[tex]cos(\theta_1+\theta_2)=cos\theta_1cos\theta_2-sin\theta_1sin\theta_2[/tex]
[tex]sin(\theta_1+\theta_2)=sin\theta_1cos\theta_2+cos\theta_1sin\theta_2[/tex]
So using above value we get,
[tex]= r_1r_2(cos \theta_1 cos \theta_2 - sin \theta_1 sin \theta_2) + i (cos \theta_1 sin \theta_2 + sin \theta_1 cos \theta_2)[/tex]
[tex]=r_1r_2cos(\theta_1+\theta_2)+isin(\theta_1+\theta_2)[/tex]
Therfore the product of the complex number is z1z2 = r1r2[cos (θ1+θ2) + isin (θ1+θ2)].
To learn more about the product of complex number visit:
https://brainly.com/question/1462345
Enlarge the triangle by scale factor 0.5 using (3, 1)
as the centre of enlargement.
Answers
Answer:
(1.5, 0.5)
Step-by-step explanation:
Given the coordinate point (x, y, if it is enlarged by a factor of k, hence the resulting coordinate will be (kx, ky)
Given the coordinate (3,1). If enlarged by a factor of 0.5, the resulting coordinate will be (3*0.5, 1 * 0.5) = (1.5, 0.5)
Answer:
USE: (0,2) (0,4) (-1,4)
Step-by-step explanation:
PLEASE USE THESE CO - ORDINATES IN ORDER TO PLOT THE TRIANGLE AND THEN USE THE LINES TO JOIN IT UP
Always proud to help!
The figure shown is created by joining three rectangles. Enter the area of the figure, in square centimeters. Round to the nearest hundredth.
Answers
Answer:
109.75
Step-by-step explanation:
first, separate the floor into 3 different rectangles to calculate the area and then add them together.
area of rec=L*B
rec 1: 8.5*6=51
rec 2: (9.5-5)*(13.5-5-6)=11.25
rec 3:5*9.5=47.5
Then:
51+11.25+47.5=109.75