Trudy's father has a large collection of ties. He has 18 ties, and 2 of them are striped.
If Trudy's father chose a tie at random, what is the probability that the tie would be striped?

Answer:

1/9

Step-by-step explanation:

p = 2/18

p = 1/9

A rectangular prism had a volume of 99 cubic centimeters. The length of this prism was changed from 3
centimeters to 6 centimeters to create a new rectangular prism. The other dimensions stayed the same.
What is the volume of this new prism?

PLEASE NO LINKS Thanks :))

Would you rather lose the ability to cry or cry every day for 20 minutes randomly?

Which numbers are factors of both 12 and 42?

i’m honestly very confused on how to figure this out

An arborist examined trees in an orchard to see if they were infected with a virus. The arborist counted 7 infected trees and 43 healthy trees. What percentage of the trees in the orchard were infected?

WILL GIVE BRAINLIEST

1. A department store kept records of how many fans were sold each day and the high temperature for that day. The results are shown in the scatterplot. Answer the questions about the scatterplot.

a. What is the explanatory variable (independent variable)? (1 point)



b. What is the response variable (dependent variable)? (1 point)



c. Circle the best range for the correlation coefficient. (1 point)
(–1 to –0.7) (–0.7 to –0.3) (–0.3 to 0) (0 to 0.3) (0.3 to 0.7) (0.7 to 1.0)

d. Based on this scatterplot, does a rise in temperature cause more fans to be sold? Why or why not? (3 points)






2. This scatterplot shows the relationship between a player's level in a game and the point total in the level. Answer the questions about the scatterplot.

a. The best model for these data would be (linear / exponential / quadratic). (Circle the correct answer.) (1 point)
b. This table shows the values from the scatterplot. Find the regression equation for the model that you chose in Part a. Round your answer to the nearest hundredth. (3 points)
x
Level
y
Point total
1
124
2
156
3
194
4
240
5
305
6
380
7
477
8
596
9
745






c. Using the equation that you found in Part b, predict the point total in the 10th level. Round your answer to the nearest integer. (2 points)






3. Maria is a veterinarian. She wants to know how the weight of a puppy is related to its length. To find out, Maria randomly selected 10 puppies that are two months old. She recorded the length and weight of each puppy in the table below.

Part A. The data from the table are shown on the scatterplot. Draw an estimated line of best fit through the data points. (3 points)
Part B. Use the scatterplot to answer these questions.
a. What kind of correlation exists between the length and weight of the puppies? Explain. (2 points)



b. Identify two points on the line of best fit that you drew in Part A. Use the two points to find the equation of the line. Write the equation of the best fit line in slope-intercept form. Show your work. (4 points: 1 point for identifying the coordinates of two points, 1 point for slope, 1 point for b-value, and 1 point for showing work)






4. Maria also wants to study the relationship between the weight of puppies at birth and their adult weight (at two years old). She collected data from five randomly selected small-breed dogs and displayed the data in the table.
Birth weight
(pounds)
Adult weight
(pounds)
1.5
10
3
17
1
8
2.5
14
0.75
5
Part A. Use the data in the table to create a scatterplot. (5 points)

Part B. Look at the scatterplot that you drew in Part A. Which regression equation (linear, exponential, or quadratic) do you think would be the best model for these data? To help you decide, think about the adult weight you would expect if the birth weight were larger — say, 10 pounds. Would you expect the pattern in the scatterplot to continue? To grow exponentially? To change direction? Explain your answer. (2 points)






Part C. Perform a linear regression and interpret the results.
a. Use a calculator to perform a linear regression. Round the values your calculator gives you for a and b to the nearest hundredth. (2 points)
y = _______x + _______
b. What is the slope of the regression equation? What does this mean in terms of the birth weight and adult weight? (2 points)



c. What is the value of the correlation coefficient? (1 point)



d. Describe the correlation in terms of strength (weak or strong) and direction (positive or negative). (2 points)



Part D. Analyze the residuals.
Birth weight
(pounds)
Adult weight
(pounds)
Predicted
adult weight
Residual
1.5
10

3
17

1
8

2.5
14

0.75
5

a. Use the linear regression equation from Part C to calculate the predicted adult weight for each birth weight. Round to the nearest hundredth. Enter these in the third column of the table. (2.5 points)
b. Find the residual for each birth weight. Round to the nearest hundredth. Enter these in the fourth column of the table. (2.5 points)
c. Plot the residuals. (3 points)

d. Based on the residuals, is your regression line a reasonable model for the data? Why or why not? (2 points)




5. Decide whether each statement is true or false. (1 point each)
a. T/F: If there is a strong correlation between two variables, the correlation coefficient will be close to –1 or 1.

b. T/F: If there is a negative correlation between two variables, the slope of the regression line will be positive.

c. T/F: If there is a strong correlation between two variables, there is a cause-and-effect relationship.

d. T/F: The best model for data that change direction is a linear model.

e. T/F: A regression line is useful for predicting unknown values within the range of the observed data values.

i hatte math so much

URGENT!!
Solve for X

WILL CROWN BRAINLIEST

Clara is finding a quotient using a calculator. Which value represents the quotient when 4.5 x 10^8 is divided by 9 x 10^4?

A. 0.2E-5
B. 0.2E-4
C. 5E+3
D. 5E+4

A company manufactures aluminum mailboxes in the shape of a box with a half-cylinder top. The company will make 1384 mailboxes this week. If each mailbox
has dimensions as shown in the figure below, how many square meters of aluminum will be needed to make these mailboxes? In your calculations, use the
value 3.14 for pi, and round up your answer to the next square meter.
2
m
?
0.4 m
0.2 m
0.55 m. NEED THIS URGENT THANKS

HELPPPPPPP PLZZZZZZZZ

Target #3
The four concentric circles shown have diameters 10 cm, 14 cm, 20 cm and 28 cm. What is the total area of the shaded regions? Express your answer to the nearest whole number ?

Can someone plz help me plz I beg u :/

A box contains 7 red marbles, 4 white marbles, and 5 blue marbles. If only white marbles are added to the box, how many must be added to
make the probability of drawing a white marble ş?
A: 1
B: 2
C: 5
D. 7
E: 12

PLEASE HURRY!! A diver jumps off a high diving board that is 33 feet above the surface of the pool with an initial upward velocity of 6 feet per second. The height of the diver above the surface of the pool can be represented by the equation −16t2+6t+33=0
. How long will the diver be in the air, to the nearest hundredth of a second?

Learning Task Find the perimeter and area of each figure
Perimeter
Area
om
som
So​

A semi-trailer in the shape of a rectangular prism, has inside measurements of 53 feet, 8 feet, and 8.5 feet. What is the volume of the trailer?

All dimensions of a cylinder are multiplied by 1.5. Which statement is true?

A. The total surface area is multiplied by 3.375.
The volume is multiplied by 2.25.

B. The total surface area is multiplied by 2.25.
The volume is multiplied by 3.375.

C. The total surface area is multiplied by 3.
The volume is multiplied by 4.5.

D. The total surface area is multiplied by 4.5.
The volume is multiplied by 3.

HELPPPPPP. In a class activity, students collected data on the average number of pepperoni slices on various sizes of pizzas. A "New York" style pizza has a diameter of 18 inches. Use the least-squares regression line to predict the average number of pepperoni slices that the students could expect to on a "New York" style pizza. Pepperoni = - 0.156 Diameter
a.) 49 pepperoni slices
b.) 7 pepperoni slices
c.) 60 pepperoni slices
d.) 2 pepperoni slices

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

What is the length of the dotted line in the diagram below? Round to the nearest tenth.

Find the volume of this cone.
Use 3 for TT.
3
6cm

V ~ [?]cm3
V
5cm
Enter your answer in decimal form.
HELP ME

PLS HELP MEEEE I WILL GJVE BRAIN THINGY!!!!!

PLEASE HELPP IM VERy CONFUSED IM MAKING IT WORTH 45 PLEASE HELP!!!!! WILL MARK BRAINLIEST

The height, h, in feet above the ground of a person riding a Ferris wheel can be modeled with the equation
h(t)=-45cos (pi/4 t) +52, where t is the number of minutes since boarding the ride.

(a) At what height does the person board the wheel? Explain how you arrived at your answer.

(b) How many minutes does one complete rotation of the wheel take?

64^2/3
does anybody know how to do this?

express (2+4√6)÷(3√2-1) in the form p√2+q√3 where p and q are rational numbers​

veuillez répondre correctement
​

Write the equation in point-slope form of the line that passes through the given point and has the given slope: (-2, -1); m=-3

$1 less than three times the price