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ELEN [110]
3 years ago
8

The record high in January temperature in Austin,Texas,is 90 degreasEr. The record low January temperature is-2 degressF. Find t

he difference between the high and low temperatures
Mathematics
1 answer:
marysya [2.9K]3 years ago
7 0
Difference just means you subtract the two numbers, so:

90 - (-2) = x

( now you would "Copy Change Opposite") so;

90 + 2 = 92 *F


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honestly i think its 2f=9x

Step-by-step explanation:

might not be 2f=9x but make sure to chexk your answer

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Which is a perfect square?<br><br> 2<br><br> 5<br><br> 25<br><br> 52
Misha Larkins [42]

25 because 5 times 5


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Rus_ich [418]

Answer:

Mrs. Delgado purchased 6 notebooks and 2 packages of pens.

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Johnny has a box filled with 10 black marbles and 5 purple marbles what are the odds he pulls to black marbles in a row?
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Is f(x)=3x5^2x-3 an exponential function? If so, write it in the form f(x)=ab^x
Anna11 [10]

Answer:

f(x)=\frac{3}{125} * 25^x

Step-by-step explanation:

Given

f(x)=3*5^{2x-3}

Required

To determine if it is an exponential function, we have to write in form of

f(x) = ab^x

If we're able to do so, then the function is an exponential function.

If otherwise, then it is not

f(x)=3*5^{2x-3}

Apply Law of indices

f(x)=3*\frac{5^{2x}}{5^3}

Express 5^3 as 125

f(x)=3*\frac{5^{2x}}{125}

Factorize the exponent of 5

f(x)=3*\frac{5^{(2)x}}{125}

Express 5^2 as 25

f(x)=3*\frac{25^x}{125}

This can be rewritten as:

f(x)=\frac{3}{125} * 25^x

By comparing the above to f(x) = ab^x

We have that

a = \frac{3}{125}

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Since, we've be able to express the function as f(x) = ab^x

Then, f(x)=3*5^{2x-3} is an exponential function

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