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Likurg_2 [28]
4 years ago
10

Today's high temperature is 72°F. If yesterday's high temperature was 87°F, what was the change in high temperatures? -15°F

Mathematics
2 answers:
makkiz [27]4 years ago
8 0

Answer:

15°F

Step-by-step explanation:

It is given that,

Today's high temperature is 72°F and yesterday's high temperature was 87°F. We need to find the change in high temperatures.

Change in temperatures = final temperature - initial temperature

= 87°F - 72°F

= 15°F

It means that the change in temperature is 15°F. Hence, the correct option is (b).

Pepsi [2]4 years ago
4 0

Answer:

15

Step-by-step explanation:

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Identify all factors of the expression 〖4x〗^2+17x-15.
Basile [38]

The factors of given expression are: -5 and 3/4

Step-by-step explanation:

Given equation is:

4x^2+17x-15

Making pairs for the mid-term 17x by factoring the product of co-efficient of 4x^2 and 15

4x^2+20x-3x-15

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Now

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Hence,

The factors of given expression are: -5 and 3/4

Keywords: Quadratic equation, factors

Learn more about quadratic equation at:

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3 years ago
Find the exact values of the following,giving your answers as fractions
Vsevolod [243]

Answer:

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(b) 4^{-3}=\frac{1}{64}

(c) 2^{-6}=\frac{1}{64}

Step-by-step explanation:

To find the exact value in fractions of the followings:

Exponents also called powers its a way of expressing a number multiplied by itself by a certain number of times.

Using a^{-m}= \frac{1}{a^m}                   .......[1]

(a)

Fraction represents a part of a whole or more generally, any number of equal parts.

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(b)

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(c)

2^{-6} = \frac{1}{2^6} =\frac{1}{2\times 2\times 2\times 2\times 2\times 2}=\frac{1}{64}          [ Using [1]]



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