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Marta_Voda [28]
3 years ago
8

Find the volume of the cone.

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
7 0

Answer:

thanks for the question mam.

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What’s the inverse of y= 100 - x^2
Marianna [84]

Answer:

The inverse is ±sqrt(100-x)

Step-by-step explanation:

y= 100 - x^2

Exchange x and y

x = 100 -y^2

Solve for y

Subtract 100 from each side

x-100 = 100-100-y^2

x-100 = - y^2

Multiply by -1

-x+100 = y^2

100 -x = y^2

Take the square root of each side

±sqrt(100-x) = sqrt(y^2)

±sqrt(100-x) = y

The inverse is ±sqrt(100-x)

3 0
4 years ago
Read 2 more answers
A square of area 36cm is cut out to make two rectangles, which we'll call A and B. The ratio is 2:1 for A: B. Work out the lengt
mr_godi [17]

Answer:

*by length i mean height

Length of A = 6

Width of A = 4

Length of B = 6

Width of B = 2

Step-by-step explanation:

You can approach this question in many different ways, but this is how i did it. I prefer to draw diagrams whenever i can, it just makes it easier, but its your choice what you choose to do.

Since its a square, we know that both the original length and width are 6.

Depending on which way you cut it, either the length or width will stay the same for both rectangles, but you'd still be right. I assumed they were cutting it down the middle, so the length stays 6 for both A and B.

To find the width of A and B:

The width of the square is 6 and i divided that by 3, becauce the ratio is 2:1, which has three "parts" to it (2+1=3).

So now we have 3 parts, each with a width of 2. From the ratio, we know that the width of A has to be double the width of B.

From this i get, width of A = 4 and width of B =2.

If you check this against the ratio 2:1, you'll see its correct because 4:2 simplifies down to 2:1 as well.

* if you want to be extra sure of you answer you can do some trial and error with different values for B and see if it fits the ratio, but theoretically, nothing else should work.

So the final answer is:

Length of A = 6

Width of A = 4

Length of B = 6

Width of B = 2

Hope that helped :)

5 0
3 years ago
jill brought 2 1/3 boxes of carrot muffins for a bake sale mike bought 1 3/4 boxes of apple muffins what is the total number of
ioda
To solve this, we need to find the LCM (Least Common Multiple) for 3 and 4 to have common denominator. 3 x 4 is 12.

So let us keep in mind 1 in this case is 12/12, and 2 is 24/12

2 of 2 1/3 is 24/12.

Let us find out 1/3

12 divided by 3 is 4, so we multiply both sides by 4.

1/3 x 4/4 is 4/12. 4/12 plus 24/12 is 28/12 equaling 2 and 4/12, or , if you simplified, 2 and 1/3

Now to find 1 and 3/4

1 is 12/12, and the easiest way to find 3/4 is to do 1/4 x 3 or 4/4 - 1/4. (I'm doing the first way)

12 divided by 4 is 3. we times both sides by 3. 1/4 x 3/3 = 3/12. since 3/4 is 1/4 x 3/1, we multiply 3/12 by 3/1, which equals 9/12.

1 (12/12) plus 3/4 (9/12) equals 21/12, or 1 and 3/4 simplified

Now we add 2 1/3 (28/12) by 1 3/4 (21/12) , we get 4 and 1/12 (simplest form/simplified) or 49/12

Answer is 49/12 or 4 and 1/2

:)
6 0
4 years ago
Who ever get it right I will give Brainly thx u
N76 [4]

It be 12 cause from the smaller one 2*4 would = to 8 and 5*4 also = to 20 so 3*4 = to 12.

6 0
3 years ago
Find the x- and y-intercept of the line.
OlgaM077 [116]
-3x+9y=18 \\ \\
\hbox{x-intercept - y=0:} \\
-3x+9 \times 0=18 \\
-3x=18 \ \ \ |\div (-3) \\
x=-6 \\ \\
\hbox{y-intercept - x=0:} \\
-3 \times 0+9y=18 \\
9y=18 \ \ \ |\div 9 \\
y=2

The x-intercept is -6 and the y-intercept is 2. The answer is A.
8 0
4 years ago
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