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3 years ago

(-1,4) and (0, -1) write a linear equation

Mathematics

1 answer:

aniked [119]3 years ago

4 0

The answer and work is shown by the picture given.

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Carlos is using the quadratic formula to find the solutions of y=3x^2-5x-2. Which of the following will simplify to the correct

Nana76 [90]

Answer:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

Step-by-step explanation:

A quadratic equation in one variable given by the general expression:

$ax^2+bx+c$

Where:

$a\neq 0$

The roots of this equation can be found using the quadratic formula, which is given by:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

So:

$y(x)=3x^2-5x-2=0$

As you can see, in this case:

$a=3\\b=-5\\c=-2$

Using the quadratic formula:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}=\frac{-(-5)\pm\sqrt{(-5)^2-4(3)(-2)} }{2(3)}=\frac{5\pm\sqrt{25+24} }{6}$

Therefore, the answer is:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

4 0

3 years ago

20% of what amount is $1.80?

tamaranim1 [39]

Answer: 9

Step-by-step explanation:

20% x = 1.8

x/5 = 1.8

x = 1.8x5 = 9

6 0

3 years ago

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Parallelogram ABCD is a rectangle. AC=2y+7 BD=3y−4 What is the value of y?

Liono4ka [1.6K]

Answer:

You didn't attach an image so I will assume that AC and BD are opposite sides. In a parallelogram, opposite sides are congruent which means:

2y + 7 = 3y - 4

-y = -11

y = 11

7 0

3 years ago

Triangle LMN is shown what is the area of the triangle

kondor19780726 [428]

Answer:

Step-by-step explanation:

(2 means squared) (c is the hypotenuse)

a2+b2=c2

a2+ (12×12) = (20×20)

a2+144=400

a2=256

a=16

8 0

3 years ago

Find the equation of a line that passes through points (9,3) and (-6,5)?

White raven [17]

Answer:

Y= X - 31.5

Step-by-step explanation:

find the gradient then the equation

4 0

3 years ago

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