3 years ago

I’m confused on all math

Mathematics

1 answer:

STALIN [3.7K]3 years ago

5 0

Answer:

Math is stupid

Step-by-step explanation:

But to sum it up... 2+2= 4 -1 thats tree quick maths

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pav-90 [236]

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3 years ago

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3 years ago

Solve the following:<br> a. 4x^2 + 5x + 3 = 2x^2 − 3x<br> b. c^2 − 14 = 5c

Jet001 [13]

Answer:

(a) x = -0.418 , -3.581

(B) c = 6.855, -1.855

Step-by-step explanation:

(A) We have given equation $4x^2+5x+3=2x^2-3x$

$2x^2+8x+3=0$

On comparing with standard quadratic equation $ax^2+bx+c$

a = 2, b = 8 and c = 3

So roots of the equation will be $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-8\pm \sqrt{8^2-4\times 2\times 3}}{2\times 2}=\frac{-8\pm 6.324}{4}=-0.418,-3.581$

(b) $c^2-14=5c$

$c^2-5c-14=0$

a = 1, b = -5 and c= -14

So $c=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-(-5)\pm \sqrt{(-5)^2-4\times 1\times (-14)}}{2\times 1}=\frac{5\pm 8.71}{2}=6.855,-1.855$

7 0

3 years ago

Combine the like terms to create an equivalent expression:<br><br> 2r+1+(−4r)+7

dybincka [34]

Answer:

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3 years ago

PLEASE HELP 3. what is the source of the line that contains the coordinate points (8, -3) and (-2, 7)

Darina [25.2K]

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Answer:

-1

Step-by-step explanation:

The slope of a line between two points is given by the slope formula:

m = (y2 -y1)/(x2 -x1)

m = (7 -(-3))/(-2 -8) = 10/-10

m = -1

The slope of the line is -1.

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3 years ago