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3 years ago

NEED THE ANSWER ASAP PLEASE

Mathematics

2 answers:

BARSIC [14]3 years ago

8 0

Answer:

y = 2x -8

Step-by-step explanation:

VashaNatasha [74]3 years ago

7 0

Answer:

y = 2x - 8

Step-by-step explanation:

General equation of a line,

$y = mx + c$

Gradient (m) = 4-(-2) / 6-3

m = 2

y = mx + c

Consider point (3,-2)

-2 = (2×3) + c

c = -2 - 6

c = -8

hence y = 2x - 8

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X(x+1)+(x+1)(x+2)+(x+2)(x+3) solve the equation for x

viva [34]

Answer:

3x²+9x+8

Step-by-step explanation:

x²+x+x(x+2)+1(x+2)+x(x+3)+2(x+3)

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x²+x²+x²+x+2x+x+3x+2x+2+6

3x²+9x+8

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3 years ago

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Need Help Please (b) Solve for x. Show each step of the solution. 3.5(7 – x) + 28 = 97 – 4.5(3x + 21)

leonid [27]

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3 years ago

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about 324 times.

Step-by-step explanation:

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What is the slope of (-2,2) (-4,-4)

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Answer:

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2 years ago

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1. A right triangle is shown below. Use the Pythagorean Theorem to determine the lengths of each side. Phythagorean Theorem: a2

erik [133]

This may not be very pretty.
(2x + 5) * (2x + 5) expanded is (use foil)
F = 4x^2
O = 2x * 5 = 10x
I = 2x + 5 = 10x
L = 25
Total = 4x^2 + 20x + 25

(x + 3)(x + 3) = x^2 + 6x + 9 by the same method

(2x + 7)(2x + 7) = 4x^2 + 28x + 49 Same method.

4x^2 + 20x + 25 + x^2 + 6x + 9 = 4x^2 + 28x + 49
5x^2 + 26x + 34 = 4x^2 + 28x + 49 Collect everything on the left.
x^2 - 2x - 15 = 0
(x - 5)(x + 3) = 0
x + 3 will have no meaning.
x - 5 = 0
x = 5

2x + 5 = 2*5 + 5 = 15
x + 3 = 5 + 3 = 8
2x+ 7 = 2*5 +7 = 17

Check
15^2 + 8^2 = 17^2
225 + 64 = ? 289
289 = 289

a = 15 <<<<< answer
b = 8 <<<<< answer
c = 17 <<<<< answer

5 0

3 years ago