What are the dimensions of this matrix?

2 x 3


2 x 2


3 x 2


3 x 3

WILL MARK BRAINLEST Select the correct answer.
The stem and leaf plot shows the number of coples of a newly released book ordered from several bookstores.

In a lab experiment, 2000 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 23 hours. How many bacteria would there be after 26 hours, to the nearest whole number?

Estimate the slope of the regression line manufacturer of cases for sound equipment requires drilling holes for metal screws. The drill bits wear out and must be replaced; there is expense not only in the cost of the bits but also for lost production. Engineers varied the rotation speed of the drill and measured the lifetime in thousands of holes drilled of bits at different speeds in surface feet per minute (sfm). Suppose you want to create a model that estimates the drill bit lifetime ( y) based on rotation speed ( x). Summary statistics for 20 observations collected are given below.

20 20 20 20
Σ xi = 2,000 ; Σ yi = 86.6 Σ xi^2= 216,000 Σ xiyi= 8,338
i= 1 i=1 i=1 i=1

Estimate the slope of the regression line.

a. -0.017
b.-0.037
c. -0.057
d.-0.077

What does the consumer price index measure?
ΟΑ.
the change in prices of all goods and services over time
ОВ.
the change in prices of specific goods and services over time
Ос.
the change in prices of final goods and services over time

Find the Find the marginal cost function, given the average cost function AC=100100Q+2arginal cost function, given the average cost function AC=100100Q+2

PLEASE HELP WITH THIS GEOMETRY ASSIGNMENT... IT WOULD MEAN A LOT BEING IT'S HALF MY GRADE... AND PLEASE EXPLAIN IT SO I CAN FINALLY UNDERSTAND OR IF YOU DONT WANT TO GIVE ME THE ANSWER JUST TELL ME HOW TO DO IT. THIS IS FORM IS FROM PLATO OR EDMENTRUM IF YOU WILL.L...
Question 2
The vertex form of the equation of a horizontal parabola is given by , x=1/4p(y-k)2+h where (h, k) is the vertex of the parabola and the absolute value of p is the distance from the vertex to the focus, which is also the distance from the vertex to the directrix. You will use GeoGebra to create a horizontal parabola and write the vertex form of its equation. Open GeoGebra, and complete each step below.

Part A
Mark the focus of the parabola you are going to create at F(-5, 2). Draw a vertical line that is 8 units to the right of the focus. This line will be the directrix of your parabola. What is the equation of the line?

Part B
Construct the line that is perpendicular to the directrix and passes through the focus. This line will be the axis of symmetry of the parabola. What are the coordinates of the point of intersection, A, of the axis of symmetry and the directrix of the parabola?


Part C
Explain how you can locate the vertex, V, of the parabola with the given focus and directrix. Write the coordinates of the vertex.

Part D
Which way will the parabola open? Explain.

Part E
How can you find the value of p? Is the value of p for your parabola positive or negative? Explain.

Part F
What is the value of p for your parabola?

Part G
Based on your responses to parts C and E above, write the equation of the parabola in vertex form. Show your work.

Part H
Construct the parabola using the parabola tool in GeoGebra. Take a screenshot of your work, save it, and insert the image below.

Part I
Once you have constructed the parabola, use GeoGebra to display its equation. In the space below, rearrange the equation of the parabola shown in GeoGebra, and check whether it matches the equation in the vertex form that you wrote in part G. Show your work.

Part J
To practice writing the equations of horizontal parabolas, write the equations of these two parabolas in vertex form:

focus at (4, 3), and directrix x = 2
focus at (2, -1), and directrix x = 8
equation is below...
y=[tex]y=\frac{1}{4p} (x-h)^{2} +k[/tex]

Answer this question pls!!

HELP ME PLEASEEEEEEEEEEEE

HELPPPPP I NEED ANSWERS PLSSSSS

If you know that​ R' (20)=50 and​ R''(20)=-4, approximate​ R'(24)

Find x

picture listed

during 3 days joy the cat was catching mice .Each day joy caught 3 mice more than the previous day .On the third day joy caught twice as many mice as on the first day . In total

how many mice did joy catch during the three days

Please help!
1. What is the perimeter of the triangle below? Show your work.

3 + 6x = 15?
pls help :D

Use front-end rounding to estimate the sum:

Round to the nearest hundredth (2 decimal places) when necessary

A baseball field is being designed. There is 60 ft between the pitcher and 3rd
baseman and 90 ft between the catcher and 3rd baseman. The half-way
distance from the catcher to the 3rd baseman is 45 ft. How far is the distance
between the pitcher and the catcher?
441 = 21
3600 = 60
5400 = 73.5
7650 = 87.5
1800 = 42.4​

Estimate the product. 3 1/3 x 4 1/8 =

solve y=x-2 and x+y=12 using substitution

HELP ME PLEASEEEEEEEEEE

Which angle mesuare is greater

The price of a pair of shorts was reduced from $160 to $100. By what percentage was the price of the shorts reduced?

13. Solve the equation x2 + 6x – 3 = 0 by completing the square.

Write a expression to show how much longer the round trip to tampa is than the round trip to atlanta how many terms does the expression have​

Solve for x

Please help!

help me pls (: l: ):

The circumference of a circle is 18.84 inches. What is the circle's diameter?

3/2 of a number is less than this number?
true or false, justify your answers​

The function F(x) = log2 x is increasing.
True or false

Two trains, Train A and Train B, weigh a total of 243 tons. Train A is heavier than Train B. The difference of their weights is 87 tons. What is the weight of each train?