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2 years ago

7

What is the decay factor in the exponential decay function y=a (1-r) t

1 answer:

MrRissso [65]2 years ago

5 0

Answer:

in this form, the "-r" would cause the result to decrease

I assume that the answer is "r"

if r = .1 (10 %) then 1-.1 = .9

if you have 100 items then y = 100(.9)^1 = 90

the total decreased by 10% ... y = 100(.9)^2 after 2 time periods

Step-by-step explanation:

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Solve algebraically please URGENT <br> y=5x−7 <br> −6x−4y=−24

Kazeer [188]

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3 years ago

Verify the identity<br><br> cos quantity x plus pi divided by two = -sin x

In-s [12.5K]

Answer:

Identity is verified.

Step-by-step explanation:

We have to verify the identity $cos(x+\frac{\pi }{2}) = (- sinx)$

To prove any identity we always prove one side(either left hand side or right hand side) of the equation equal to the other side.

In this identity we take the left hand side first

$cos(x+\frac{\pi}{2})$

$=cosx\times cos(\pi/2)-sinx\times sin(\pi/2))$ (as we know cos(a+b) = cosa×cosb-sina×sinb)

$= cosx\times0-sinx\times1$

$= 0-sinx$

= - sinx ( Right hand side)

Hence identity is proved.

6 0

3 years ago

What is difference between -0.4 and 44.4 a) 40 b) 44 c) -44 d)44.8

ololo11 [35]

Answer: d

Step-by-step explanation:

44,4 - (-0,4) = 44,4 + 0,4= 44,8

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2 years ago

Read 2 more answers

What are three ratios equvilent to 8:20

Genrish500 [490]

Answer:

see explanation

Step-by-step explanation:

Multiplying or dividing each part of the ratio gives an equivalent ratio

Given

8 : 20 ← divide both parts by 2

= 4 : 10 ← divide both parts by 2

= 2 : 5 ← ratio in simplest form

Multiply both parts by 2

8 : 20 = 16 : 40

4 : 10, 2 : 5, 16: 40 ← are possible equivalent ratios

3 0

3 years ago

Which of these cannot be an 2-value?<br> A. -0.88<br> B. O<br> C. 0.88<br> D. 1

defon

Answer:

c

Step-by-step explanation:

6 0

3 years ago

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