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V125BC [204]
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
Mathematics
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
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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>
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Carpetin costs 9.99$ a yard .If jan buys 17.4 yard how much will it costs<br>? to nearst hundreadth
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It would cost $173.83
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3 years ago
Find the volume of the cone
aivan3 [116]

Answer:

12π

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h = 4

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6 0
2 years ago
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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
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