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3 years ago

15

-7x-6y=-1

1 answer:

Xelga [282]3 years ago

6 0

Cancel something
we cancel x's

multiply 1st equation by 5 and 2nd by 7 and add them
-35x-30y=-5
<u>35x-28y=7 +</u>
0x-58y=2

-58y=2
divide both sides by -58
y=-1/29
sub back
5x-4(-1/29)=1
5x+4/29=1
minus 4/29 from both sides
note, 1=29/29
5x=25/29
divide bot sides by 5 (or times 1/5)
x=5/29

(5/29,-1/29)

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(1 point) Consider the function f(x)=−x3+2x2+2x+1 Find the average slope of this function on the interval (−2,6). equation edito

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Answer:

Step-by-step explanation:

Given is a function

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By mean value theorem there exists a c such that f'(c) = -18

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Using quadratic formula

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4 years ago

Find an equation of the line that satisfies the given conditions.<br> Through (-3, -4); slope -5/2

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Answer:

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Step-by-step explanation:

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3 years ago

HELPPPPPPPP 17 PTSSSSSSSSSSSSSSSSSS

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Answer:

A: 360

Step-by-step explanation:

Split the trapezoid into 2 shapes

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Now for the triangle, first find the base by subtracting the 2 parallel lines:

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Add both areas to find total area:

270 + 90 = 360 square yards

All this can be seen in the figure below:

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3 years ago