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Masteriza [31]
3 years ago
8

Expand the expression -7(k-3)

Mathematics
2 answers:
erastova [34]3 years ago
4 0
-7 x -3 x 7k
-7 x -3 = -31k 
natta225 [31]3 years ago
4 0
The answer is -7*k- -7*3 or -7*k + 7*3
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Answer:

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Step-by-step explanation:

<u>Slope- intercept form</u>

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y= 5x +4

Gradient of given line= 5

Thus, gradient of line= 5

Subst. m=5 into the equation.

y= 5x +b

To find the value of b, substitute a coordinate

When x= -2, y=3,

3= 5(-2) +b

3= -10 +b

b= 3 +10 <em>(</em><em>+</em><em>1</em><em>0</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

b= 13

Thus, the equation of the line is y= 5x +13.

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3 years ago
The expression can be simplified and written without negative exponents as...
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wariber [46]

<span>a^2 + b^2 = c^2 </span>
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