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3 years ago

The temperature is 50 degrees Fahrenheit. The temperature will decrease by 4 degrees F. each hour. Let h be the number of hours.

Mathematics

2 answers:

goblinko [34]3 years ago

8 0

The correct answer choice is B

SVEN [57.7K]3 years ago

7 0

Answer:

Option B is correct

$50-4h < 32$

Step-by-step explanation:

Here, h be the number of hours.

As per the statement:

The temperature is 50 degrees Fahrenheit.

⇒Initial temperature = 50 degrees Fahrenheit

It is also given that:

The temperature will decrease by 4 degrees F each hour.

1 hour temperature will be = -4 degree F

then;

In h hour temperature = -4h degrees F

We have to find the the temperature be below 32 degrees F.

Total Temperature be below 32 degrees F means:

$50-4h < 32$ where, h represents the number of hours.

Therefore, the the temperature below 32 degrees F will be $50-4h < 32$

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A health club charges an initial fee of $100 to join, plus a fee of $33 per month. Write an algebraic equation. How much will yo

docker41 [41]

#1 answer: y=33x+100

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The 33 is your slope.
You pay $33 a month which is what the x value represents (the month).
So your total equation is y=33x+100

#2 answer: $265

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3 years ago

Read 2 more answers

Please hurry; Which function increases the fastest? A. y 5 14x B. y 5 23 · 17x C. y 5 120x D. y 5 2275x^x

Maurinko [17]

Answer: y = 14^x

Step-by-step explanation:

Here the options are:

a y = 14^x

b y = -3*(17)^x

c y = 120x

d y = -275x

to see which function increases the fastest (or which function is steeper) we need to look at the first derivations of each one of these, and see which one is larger for every value of x:

the derivations are:

a y = x*14^(x - 1)

b y = -x*3*(17)^(x - 1)

c y = 120

d y = -275

So we can already discard options c and d, because have constant rate of change.

Then we keep options a and b.

Always when we have an exponential function, like a^x and b^x

The one with the larger base will be steeper.

So if a > b, then:

a^x is steeper than b^x

In this case, the function:

y = -3*(17)^x

has a larger base, but, this function is negative.

This means that as x increases, our function will decrease, then this function will not "increase the fastest" (because it does not increase)

Then the left option (a: y = 14^x)

Will be the correct one.

(this will happen after some value of x, because two of the options have constant derivatives, these may be steeper for smaller values of x, and as x increases, we will see that y = 14^x is the one that increases the fastest)

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3 years ago

Confused on this help plss

ValentinkaMS [17]

Answer:

of iv

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−

)

−

x+2({\color{#c92786}{4-x}})=2x+6-3x

x+2(4−x)=2x+6−3x

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−

)

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Step-by-step explanation:

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Nikolay [14]

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