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Crank
3 years ago
12

Find the value of a and b in x^2+2x=13

Mathematics
1 answer:
zheka24 [161]3 years ago
8 0

Answer:

a =1  and b =2

Step-by-step explanation:

The standard quadratic is written in the form

ax^2 +bx+c =0

x^2 +2x -13 =0

a =1  and b =2

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A cubical block of metal weighs 6 pounds. How much will another cube of the same metal weigh if its sides are twice as long?
ser-zykov [4K]
I believe it would be 12, I believe this because its states that it is TWICE as long therefore is made from the same metal so 6x2=12 
8 0
3 years ago
V square+6v-59=0<br> answer in one equation
Tema [17]
X=\frac{-b+/- \sqrt{b^2-4ac} }{2a}
a=1
b=6
c=-59
x=\frac{-6+/- \sqrt{(6)-4(1)(-59)} }{2(1)}
x=-3+ 2\sqrt{17} and -3- 2\sqrt{17}




8 0
3 years ago
Write an expression to describe the sequence 35, 36, 37.....
lyudmila [28]

Answer:

Step-by-step explanation:

start with 35 and add 1 repeatedly.

7 0
3 years ago
Read 2 more answers
The flight of a cannonball toward a hill is described by the parabola y=2+0.12x- 0.0004x^2
Stells [14]

The computation shows that the placw on the hill where the cannonball land is 3.75m.

<h3>How to illustrate the information?</h3>

To find where on the hill the cannonball lands

So 0.15x = 2 + 0.12x - 0.002x²

Taking the LHS expression to the right and rearranging we have:

-0.002x² + 0.12x -.0.15x + 2 = 0.

So we have -0.002x²- 0.03x + 2 = 0  

I'll multiply through by -1 so we have

0.002x² + 0.03x -2 = 0.

This is a quadratic equation with two solutions x1 = 25 and x2 = -40 since x cannot be negative x = 25.

The second solution y = 0.15 * 25 = 3.75

Learn more about computations on:

brainly.com/question/4658834

#SPJ4

Complete question:

The flight of a cannonball toward a hill is described by the parabola y = 2 + 0.12x - 0.002x 2 . the hill slopes upward along a path given by y = 0.15x. where on the hill does the cannonball land?

6 0
2 years ago
What is 2x+5=y and 5x+4=y pls hurry
Sergeu [11.5K]

Answer:

( 1/3, 5 2/3) Or (0.33, 5.66)

Step-by-step explanation:

If you graph the 2 equations and see where they intersect, they will land on the answer.

4 0
3 years ago
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