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3 years ago

1

Mathematics

1 answer:

klemol [59]3 years ago

6 0

Answer:

-2

Step-by-step explanation:

f（x）=-22-2x+5=-17-2x

when x=-3, f（x）=-11;

when x=3, f（x）=-23;

then the rate of change is：

[-23-（-11）]/[3-（-3）]=-2

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You toss a coin 15 times. P( heads) 2/5=

PIT_PIT [208]

The answer is

2/5 = 0.4

Because

2/5 2 divide 5 = 0.4

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3 years ago

LAM 1 Mod 6 Question 3-2.

RSB [31]

Answer:

The believe the rate of change is 3

Step-by-step explanation:

Using rise and run

And also the x1 y1 * x2 y2 formula

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2 years ago

HELP ASAP!!!!!

nasty-shy [4]

Answer: Answer:

3^x

9, 15, 33, 87, 249

(4, 87) for example

Step-by-step explanation:

a) First differences of the f(x) values in the table are ...

19 -13 = 6, 37 -19 = 18, 91 -37 = 54, 253 -91 = 162

The second differences are not constant:

 18 -6 = 12, 54 -18 = 36, 162 -54 = 108 

But, we notice that both the first and second differences have a common ratio. This is characteristic of an exponential function. The common ratio is 18/6 = 3, so the parent function is 3^x

b) Translating a function down 4 units subtracts 4 from each y-value. The values of f(x) in the table would be ...

 9, 15, 33, 87, 249

c) The x-values of the function stay the same for a vertical translation, so the points in the table of the transformed function are ...

 (x, f(x)) = (1, 9), (2, 15), (3, 33), (4, 87), (5, 249)

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3 years ago

Point Z is at a horizontal distance of 15 meters from the left- most point of the dam . What is the height of the dam at point Z

Ivanshal [37]

Complete Question:

The profile of a dam is modeled by the equation y = 24 (StartFraction x Over 10 EndFraction) squared, where x represents horizontal distance and y represents height, both in meters.

Point Z is at a horizontal distance of 15 meters from the left-most point of the dam. What is the height of the dam at point Z?

Answer:

The height is 36 meters

Step-by-step explanation:

Given

$y = 24 * \frac{x}{10}$