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pychu [463]
3 years ago
10

Equivalent expression for 7a+21

Mathematics
1 answer:
Mila [183]3 years ago
6 0

Answer:

Step-by-step explanation:

If you factor the expression 7a+21 you can get:

7 × (a+3)

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Find the slope of a line that passes through points (-1,-5) and (6,9).
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Answer:

{ \rm{slope =  \frac{y _{2} - y _{1} }{x _{2} - x _{1}  } }} \\  \\ { \rm{slope =  \frac{9 - ( - 5)}{6 - ( - 1)} }} \\  \\ { \rm{slope =  \frac{14}{7} }} \\  \\ { \boxed{ \rm{ \:  \: slope = 2 \:  \: }}}

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38.5

Step-by-step explanation:

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What is the mass of an object that has a density of 1.3 g/cm3 and a volume
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Step-by-step explanation:

The density of an object is the ratio between its mass and its volume

The equation of the is d = \frac{m}{V} , where

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Let us use this equation to solve the question

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Simplify the expression
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9a.
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The slope is -2/3 I hope this helped
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