Ask question

Ask question

All categories

2 years ago

6

Judges at an art competition must select first-, second-, and third-place winners from an exhibition of 12 paintings. In how man

y different ways can the winning paintings be chosen?
A.
1,320
B.
440
C.
220
D.
18

2 answers:

xenn [34]2 years ago

7 0

Answer:

A

Step-by-step explanation:

I got it right

Artemon [7]2 years ago

4 0

B is the answer hope it helps

You might be interested in

Three-fourths of a number increased by one-fifth is no less than seven-eighths.

Andru [333]

I think it is 3/4y + 1/5 <span>≥ 7/8</span>

5 0

3 years ago

Read 2 more answers

Carpetin costs 9.99$ a yard .If jan buys 17.4 yard how much will it costs<br>? to nearst hundreadth

vlada-n [284]

It would cost $173.83

7 0

3 years ago

Find the volume of the cone

aivan3 [116]

Answer:

12π

Step-by-step explanation:

Volume of the cone is πr^2 * h / 3

r = 3

h = 4

9π * 4 / 3 = 12π

6 0

2 years ago

Read 2 more answers

Write the equation of the line perpendicular to 2x+3y=9 that passes through (-2,5). Write your answer in slope-intercept form. S

Harman [31]

ANSWER

$y = \frac{3}{2} x + 8$

EXPLANATION

The line given to us has equation,

$2x + 3y = 9$

We need to write this equation in the slope intercept form to obtain,

$3y = - 2x + 9$

$\Rightarrow \: y = - \frac{2}{3}x + 3$

The slope of this line is

$m_1 = - \frac{2}{3}$
Let the slope of the perpendicular line be

$m_2$

Then
$m_1 \times m_2 = - 1$

$- \frac{2}{3} m_2= - 1$

This implies that,

$m_2 = - 1 \times - \frac{3}{2}$

$m_2 = \frac{3}{2}$

Let the equation of the perpendicular line be,

$y = mx + b$

We substitute the slope to get,

$y = \frac{3}{2} x + b$

Since this line passes through
$(-2,5)$
it must satisfy its equation.

This means that,

$5= \frac{3}{2} ( - 2)+ b$

$5 = - 3 + b$

$5 + 3 = b$

$b = 8$

Wherefore the slope-intercept form is

$y = \frac{3}{2} x + 8$

6 0

3 years ago

R^2+6r-40 factor each expression

bearhunter [10]

(r + 10)(r - 4)

To double check:
r * r is r^2

10 * r = 10r; -4 * r = -4r
Combine to get 6r.

-4 * 10 = -40

3 0

3 years ago