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Delvig [45]
3 years ago
7

Identify the property or rule shown by each equation

Mathematics
1 answer:
Ymorist [56]3 years ago
6 0
Can't really help you if I can't see the equations, mind sending a pic or typing them in?
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D. y=3x

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A package of wildflower seeds contains 34 baby's breath seeds and 50 other seeds. What is the probability that a randomly select
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Thirty four out of eighty

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if there are four trucks parked in line and after the first truck each truck weighed 2 more tons than the one before. They all w
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Each truck weighs five tons. 

1st truck: n 
2nd truck: n + 2
3rd truck: n + 4
4th truck: n + 6 

n + n + 2 + n + 4 + n + 6 = 32 
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--------------------
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----  ------
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0.12 over 0.20 as a percent
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\dfrac{0.12}{0.2}  =  \dfrac{0.12 \times 100}{0.2 \times 100} =  \dfrac{12}{20}

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5 0
3 years ago
A heated piece of metal cools according to the function c(x) = (.5)x − 7, where x is measured in hours. A device is added that a
Mama L [17]

Answer:

Option (b) is correct.

The temperature of the metal after two hours is 28 Celsius

Step-by-step explanation:

  Given : A heated piece of metal cools according to the function  c(x)=(0.5)^{x-7} ,  where x is measured in hours and then a cooling device id added that aids in cooling according to the function h(x)=-x-2

We have to determine the temperature of the metal after two hours.

Let w(x) denotes the temperature of metal .

Thus, w(x) can be given by function c(x) + h (x) = [c + h](x)

Thus, w(x)=[c+h](x)\\\\w(x)=(0.5)^{x-7}+(-x-2)\\\\ , where x is measured in hours.

Thus, after two hours that is when x = 2

the temperature of metal is given by w(2)

w(x)=(0.5)^{x-7}+(-x-2)\\\\ w(2)=(0.5)^{2-7}+(-2-2)

Solving , we get,

w(2)=(0.5)^{2-7}+(-2-2)\\\\ w(2)=(0.5)^{-5}+(-4)\\\\ w(2)=32-4=28

Thus, the temperature of the metal after two hours is 28 Celsius.

Hence, Option (b) is correct.

7 0
3 years ago
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