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Dafna1 [17]
2 years ago
6

Worth 10pts!!! Can someone help?

Mathematics
1 answer:
gulaghasi [49]2 years ago
3 0

Answer:

-4

Step-by-step explanation:

The average rate of change of the interval [a,b] is (f(b)−f(a)) / (b−a)

Replacing a=−5, b=4, f(x)=−x^2−5x+12.

 (f(b)−f(a))/(b−a) =12−5x4− 4^2 − (12−5 x(−5)−(−5)^2)/ (4−(−5))= −4.

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A insurance office keeps track of the number of car insurance claims filed each day. Based on the data collected, it determines
Ivenika [448]

Answer:

The expected number of new claims filed each day is 1.8.

Step-by-step explanation:

We are given the following probability distribution:

P(X = 0) = 0.25

P(X = 1) = 0.15

P(X = 2) = 0.25

P(X = 3) = 0.25

P(X = 4) = 0.1

a. What is the expected number of new claims filed each day

Multiplication of each outcome by its probability, so:

E(X) = 0*0.25 + 1*0.15 + 2*0.25 + 3*0.25 + 4*0.1 = 1.8

The expected number of new claims filed each day is 1.8.

8 0
3 years ago
Lynn bought a box of 45 cards for $42.75 how much did each card cost?
pav-90 [236]

Divide the amount of money with the amount of cards.

42.75/45 = 0.95

Each card costs $0.95

hope this helps

6 0
3 years ago
Find local maximum minimum and saddle points f(x,y)=xy-2x-x^2
saveliy_v [14]
To find such critical points, you have to differentiate the function and let the derivative equal zero. Since this function is y written in terms of x, but implicitly, you must use implicit differentiation. Do you know how to do that? 
3 0
3 years ago
Write down the value of the 7 in the number 5709.​
Dovator [93]

Answer:

700

Step-by-step explanation:

The 9 = 9

The 0 = 0

The 7 = 700

The 5 = 5000

8 0
3 years ago
If you multiply two integers together and then add 4, the result is 40. Which of the following could NOT be the sum of the two n
marta [7]

Answer:

18

Step-by-step explanation:

xy + 4 = 40

xy = 40 - 4

xy = 36

What two numbers can b multiplied to give 36? Then add them.

9 + 4 = 13

18 + 2 = 20

6 + 6 = 12

12 + 3 = 15

The odd option is 18

6 0
3 years ago
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