All categories

2 years ago

Factor 9x^2 – 12x + 4

Mathematics

2 answers:

larisa86 [58]2 years ago

6 0

Answer:

(3x-2)^2

Step-by-step explanation:

Factor out the expression.

anyanavicka [17]2 years ago

4 0

(3-2x)2 because this is the factor

You might be interested in

I need help again please 5/6-1/6

Murljashka [212]

The answer is 2/3 in lowest terms.

6 0

3 years ago

Greatest president ~ A Gallup Poll of American adults in February 2009 asked the following question. "Which of the following pre

Anastasy [175]

Answer:

The sample proportion is 0.19815

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound. The sample proportion is the halfway point between these two bounds, that is, the sum of the bounds divided by 2.

In this problem, we have that:

Lower bound: 0.1759

Upper bound: 0.2204

Sample proportion:

(0.1759 + 0.2204)/2 = 0.19815

The sample proportion is 0.19815

6 0

3 years ago

Please help with this problem

vodka [1.7K]

Answer:

0.004, 4%, 1/4, 4/9.

Explanation:

3 0

3 years ago

An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.

faltersainse [42]

Answer:

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center is 24 feet

Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

$y=a(x-h)^2+k$ , (h,k) is the center

$y=a(x-50)^2+25$

the parabola starts at (0,0) that is (x,y)

$0=a(0-50)^2+25$

subtract 25 from both sides

$-25=a(-50)^2$

$-25=a(2500)$

divide both sides by 2500

$a=-\frac{1}{100}$

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center.

center is at 50, 10 feet from the center so x=40 and x=60

$y=-\frac{1}{100}(40-50)^2+25$

y=24

the height of the arch 10 feet from the center is 24 feet

4 0

3 years ago

Which are not functions select all that apply

Olegator [25]

Answer:

is it asking for linear functions

5 0

3 years ago