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kumpel [21]
3 years ago
8

to decorate a cake, you make a shade of green icing using 3 drops of yellow food coloring for every 4 drops of blue food colorin

g. if you use 12 drops of yellow food coloring, how many drops of blue food coloring would you need?
Mathematics
1 answer:
VikaD [51]3 years ago
7 0
16 drops of blue food coloring 
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Describe the type of correlation indicated by each correlation coefficient r=0.875
Alenkinab [10]

Answer:

A strong correlation

Step-by-step explanation:

The closer the correlation coefficient is to the number 1 the stronger the correlation is.

5 0
3 years ago
A rug is to fit in a room so that a border of even width is left on all four sides. if the room is 22 feetby 25 feet and the are
Damm [24]
--------------------------------------------------------
Find area of the border :
--------------------------------------------------------
Area of the room = 22 x 25 = 550 ft²
Area of the rug = 238 ft²
Area of the border = 550 - 238 = 312 ft²

--------------------------------------------------------
Define y:
--------------------------------------------------------
Let the width be y.

--------------------------------------------------------
Find area of the border in term of y :
--------------------------------------------------------
The area of the border =  22y x 2 + 25y x 2 - 4y² = 94y - 4y²
*We need to take away 4y² because the 4 corners will be overlap twice if we don't.

--------------------------------------------------------
Solve y :
--------------------------------------------------------
94y - 4y² = 312
4y² - 94y + 312 = 0
2y² - 47y + 156 = 0 
<span>(y - 4)(2y - 39) = 0
</span>y = 4 or y = 19.5
 
--------------------------------------------------------
Answer: The border can be 4 ft or 19.5 ft 
--------------------------------------------------------



7 0
3 years ago
Graph the image of this figure after a dilation with a scale factor of 2 centered at (2, 2) .
Fofino [41]

Answer:

The points of the dilated figure would be at (-2, 10), (2, 6), and (-8, 4); an image of the figure is attached.

Step-by-step explanation:

First we translate the center of dilation and figure so the origin becomes the center of dilation.

Since the point (2, 2) is our center of dilation, we must translate it left 2 and down 2 to make the origin the center; this means we map every point

(x, y)→(x-2, y-2)

The scale factor of 2 means that each point will be multiplied by 2; this gives us the rule

(x, y)→(2x-4, 2y-4)

Lastly we will translate the figure right 2 and up 2 to move it back to its original position; this gives us the rule

(x,y)→(2x-4+2, 2y-4+2) = (2x-2, 2y-2)

The first point in the original figure, at the top, is (0, 6).  Applying the transformation gives us

(0, 6)→(2*0-2, 2*6-2) = (0-2, 12-2) = (-2, 10)

The point on the right of the pre-image is (2, 4).  Applying the transformation rule gives us

(2, 4)→(2*2-2, 2*4-2) = (4-2, 8-2) = (2, 6)

The point on the left of the pre-image is at (-3, 3).  Applying the transformation rule, we have

(-3, 3)→(-3*2-2, 3*2-2) = (-6-2, 6-2) = (-8, 4)

7 0
3 years ago
Read 2 more answers
Simplify 8g+9h-4g-5h include instructions plz
Monica [59]
You can only add/subtract LIKE TERMS ( the exact same variable part ) 
Think of adding apples and oranges ...

8g-4g   + 9h-5h  I grouped them like this so you can see the LIKE TERMS.
= 4g + 4h

Get it?
6 0
4 years ago
Read 2 more answers
Easy math PLEASE help show work find the volume of the cone
dezoksy [38]
So you know that the formula to find the volume of a cone is V=pi x r^2 x h/3
We know that pi is 3.14 so you plug that number in for the pi symbol. Then we know that r is the radius. Since the diameter is shown in the word problem divide 14.8/2 because the radius is half of the diameter. You should get 7.4 as your radius. Then we already know the height for h/3 which is 8.1. Now that you have all of the information given substitute the formula and you should get:
V=3.14(7.4)^2(8.1/3)
Multiply 3.14 times 7.4 to the second power in which you will get 171.3498
Then, divide 8.1 by 3 and then you should get 2.7.
Multiply 171 by 2.7 (btw I rounded 171.3498 to the nearest tenth) and your final answer should be about 464.
Hope this helps
And if I’m wrong please correct me.
6 0
3 years ago
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