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Svetlanka [38]
3 years ago
13

A bag of M&Ms has 12 Brown 8 blue and 10 red what is the ratio of red to brown?

Mathematics
2 answers:
umka2103 [35]3 years ago
6 0
5 to 6, or you could write it 5:6 or 5 over 6
Tanya [424]3 years ago
4 0
10 red /12 brown ........
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Which equation is the inverse of y = 9x2 - 4?
m_a_m_a [10]

Answer:

The inverse will be:

y' = \frac{\sqrt{x+4}}{3}

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

f(x)  = 9x^{2} - 4

y = 9x^{2} - 4

x = 9y' ^{2} - 4

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

x + 4= 9y'^{2} - 4+4

9y'^{2} = x + 4

Second divide by 9

9y'^{2}/9 = (x + 4)/9

y'^{2} = (x + 4)/9

Now you will have to clear y, with the square root.

[tex]y'^{\frac{2}{2}} = \sqrt{x + 4}  / \sqrt{9}[/tex] =

Simplifying terms

y' = \frac{\sqrt{x+4}}{3}

f^{-1}(x)  = \frac{\sqrt{x+4}}{3}

You can check the answer by doing the evaluation of the following equation:

(f o f^{-1} ) (x)

substitute the equation for y' or inverse function f^{-1}

f(\frac{\sqrt{x+4} }{3})

Now substitue the value into f(x)

You will have

= 9(\frac{\sqrt{x+4} }{3}} )^{2}  - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} )  - 4

=x

5 0
3 years ago
you pay $14.82 for 1.5 pound of ham. you buy 2.25 pounds of roast beef for $12.40 per pound. How much less does ham cost per pou
Vesnalui [34]
A pound of ham is 9.88$ and a pound of beef 5.51$ answer ham doesn't cost less roast beef is 4.37$ cheaper a LB.
6 0
3 years ago
Bulletin board is 8 feet long and 5 feet wide. How many feet of border does it need?
Musya8 [376]
8 × 5 = 40

So the border has to be 40 feet.

Hope this helps!

Work:

length × width = answer

length = 8
width = 5
answer = 40
7 0
3 years ago
Read 2 more answers
Help on number 3 please thank you ver much
iVinArrow [24]
I think it would be these two

7 0
3 years ago
Special right triangles
Korolek [52]

Answer:

see down

Step-by-step explanation:

cos 60 = \frac{x}{6\sqrt{3} } \\x = 6\sqrt{3}  *  cos60\\x = 6\sqrt{3} * \frac{1}{2}  \\x = 3\sqrt{3}

5 0
3 years ago
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