3 years ago

Y = 2x + 7 a) Work out the value of y when x=4 b) Work out the value of y when x=-3

1 answer:

6 0

A ) y = 2(3) + 7
y = 15

b ) y = 2(-3) + 7
y = 1

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Answer:

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enot [183]

Answer:

5.66 units

Step-by-step explanation:

A's per our discussion, x is a leg of right triangle.

Therefore, by Pythagoras theorem:

$x = \sqrt{ {9}^{2} - {7}^{2} } \\ = \sqrt{81 - 49} \\ = \sqrt{32}$

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swat32

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S=40 cm

Now

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2 years ago