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FinnZ [79.3K]
2 years ago
12

The graph shows the amount of dirt left to remove, y, with respect to number of loads of dirt, x. Use the graph to complete each

statement. Drag and drop the answers into the boxes.

Mathematics
2 answers:
Tema [17]2 years ago
7 0

Part 1. When x=0, then y=900 (from the graph). This means that y-intercept is at point (0,900).

Answer Part 1: 900

Part 2. The y-intercept is at point (0,900). This means that at x=0 (loads), the total amount of dirt to remove is 900 cubic feet.

Answer Part 2: the total amount of dirt to remove.

strojnjashka [21]2 years ago
4 0

The y-intercept is: <u><em>900</em></u>

The y-intercept represents:<u> </u><u><em>the total amount of dirt to remove</em></u>

These are correct bc i just took this test. Hope this helps.

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A and B will take the same 10-question examination. Each question will be answered correctly by A with probability .7, independe
MatroZZZ [7]

Answer:

a) The expected number of questions that are answered correctly by both A and B = 11 (7 + 4).

b) The Variance of the number of questions that are answered correctly by either A or B = 2.25.

Step-by-step explanation:

Number of questions in the examination = 10

Probability of A's answer being correct = 0.7

Probability of B's answer being correct = 0.4

The expected number of questions that are answered correctly by both A and B:

           Probability of       Expected        

        Correct Answer       Value          Variance

A              0.7                     7 (0.7 * 10)    2.25

B              0.4                     4 (0.4 * 10)    2.25

Total expected value =    11

           Mean =                  5.5                2.25

5 0
2 years ago
Which quadratic equation is equivalent to (x – 4)2 – (x – 4) – 6 = 0?
Viktor [21]

I hope choices must be given in the problem.

I am showing the method to find the equivalent equation of the above equation. You can match with your given choices.

First step is to expand the first term. So,

(x-4)² = (x - 4)(x - 4) Since a²= a*a

= x² - 4x - 4x + 4 * 4 By multiplying.

= x² -8x + 16 Combine the like terms.

So, (x - 4)² - (x -4) - 6

= x² - 8x + 16 - x + 4 - 6

= x² - 9x + 14 Combine the like terms.

So, equivalent equation of the above equation is x² - 9x + 14 = 0.

5 0
2 years ago
Read 2 more answers
Four boxes are shown in order from the largest volume to the smallest volume. For each box, all of the dimensions are 3.5cm less
Sauron [17]

Answer:

C

Step-by-step explanation:

It would be -12 to go to the last cube so u subtract 12 from every number then multiply the numbers

6 0
2 years ago
Area of parallelogram
Aliun [14]
The formula for the area of a parallelogram is base times height or bh.

There's a formula sheet on Khan Academy:
https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/parallelogram-area/a/area-of...
5 0
2 years ago
Read 2 more answers
Lindy works at a pizza restaurant and gets a 10% employee discount. She knows that if she orders d drinks and a medium pizza wit
guajiro [1.7K]

Answer: OPTION D.

Step-by-step explanation:

You know that Lindy's total cost can be found using this expression provided in the exercise:

0.90(2.25d + 1.40t + 6)

Where "d" is the number of drinks she orders and "t" is the number of toppings for a medium pizza she orders.

Since she and her friends to order 4 drinks and a medium pizza with 3 toppings, you can find the total cost by substitute values into the given expression.

The values are:

d=4\\\\t=3

Substituting into the expression and evaluating, you get:

 0.90(2.25d + 1.40t + 6)= 0.90(2.25(4) + 1.40(3) + 6)=\$17.28

4 0
2 years ago
Read 2 more answers
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