4 years ago

What’s a quadratic equation whose roots are 3 and -6?

Mathematics

1 answer:

stiv31 [10]4 years ago

5 0

answer:

x^2 - 3x - 18

explanation:

(x+3)(x-6)

you need to do distributive property and it will give you that answer

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Given that f(x) = 8x + 3 and g(x) = x + 9, calculate. f(g(16) = g(f(16) =

Ludmilka [50]

203,140

Step-by-step explanation:

f(g(16))=f(16+9)=f(25)=8×25+3=203

g(f(16))=g(8×16+3)=g(131)=131+9=140

4 0

3 years ago

What is 3x-12=-15? I need to know

cupoosta [38]

3x - 12 = -15

Add 12 on both sides.

-12 + 12 = 0

-15 + 12 = -3

The equation is now 3x = -3.

Divide both sides by 3 to isolate the variable.

3x / 3 = x
-3 / 3 = -1

So, x = -1.

7 0

3 years ago

A city has a population of 2,549,786 people.

Hunter-Best [27]

Answer:

10^3

Step-by-step explanation:

it's that if we rounded it had 10^3 if we put 10^4 answer 4,000,000 thus there is 10^3

4 0

3 years ago

Find the length of line segmentAB which joins the following points.A(10, 14) and B(2,6)

Helen [10]

Answer:

The equation of the line AB is y - x -4 = 0

Step-by-step explanation:

The points are A (10,14) and B(2,6)

Now, slope of the line AB : $m = \frac{y_2 - y_1}{x_2 - x_1}$

or, $m = \frac{14 -6 }{10 - 2}$ = $\frac{8}{8} = 1$

So, slope of the equation AB = 1

Now, by SLOPE INTERCEPT FORM:

The equation of line is given as : y - y0 = m (x-x0)

So,the equation of line AB is y - 6 = 1(x-2)

or, y - 6 -x + 2 = 0

or, y - x -4 = 0

Hence, the equation of the line AB is y - x -4 = 0

5 0

3 years ago

I need help with this?

Sergio039 [100]

A=0
With step by step you can find the awnser out

7 0

3 years ago