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adoni [48]
3 years ago
7

Cell growth can be modeled using the function y = a(b) where x

Mathematics
1 answer:
astra-53 [7]3 years ago
7 0

Answer:

please answer mine

Step-by-step explanation:

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What is the answer to the equation x squared minus 2x equals 15.
anzhelika [568]

Answer:

x = 5 \\ x =  - 3

Step-by-step explanation:

{x}^{2}  - 2x = 15 \\  {x}^{2}  - 2x - 15 = 0 \\  {x}^{2}   + 3x - 5x - 15 = 0 \\ x(x + 3) - 5(x + 3) = 0 \\ (x - 5)(x + 3) = 0 \\ x - 5 = 0 \:  \:  \:  \:  \: or \:  \:  \:  \: x + 3 = 0 \\ x = 5 \:  \:  \:  \: or \:  \:  \:  \:  \:  \: x =  - 3

7 0
3 years ago
The sum of x and 3/5 is 5/7
lord [1]

x = 5/7 - 3/5 = 25/35 - 21/35 = 4/35

3 0
3 years ago
In ΔGHI, g = 2.7 inches, h = 6.6 inches and ∠I=58°. Find the area of ΔGHI, to the nearest 10th of a square inch.
baherus [9]

Answer:

7.5 inches

Step-by-step explanation:

7 0
3 years ago
What is the answer for 3/7 x 28
Dominik [7]

Answer:

The answer for 3/7 x 28 is 12.

Step-by-step explanation:

7 0
3 years ago
A company wants to manufacture rolls of toilet paper. The toilet paper roll is in the shape of a hollow cylinder with a diameter
serg [7]

Answer:

$ 40.6 to make the 50 rolls of toilet paper

Step-by-step explanation:

We have that the diameter of every cylinder is 4.75 inches, therefore the gap would be that value minus the thickness of the paper, like this:

4.75 - 1.7 = 3.05

3.05 inches would be the diameter of the hole.

Now, to know the volume of the paper, we would have to calculate the total volume and then subtract the volume of the hole.

First we calculate the radii:

r = d / 2

r1 = 4.75 / 2

r1 = 2.375 in

r2 = 3.05 / 2

r2 = 1.525 in

Now if we calculate the volumes

Total volume:

Vt = pi * (r ^ 2) * h

Vt = 3.14 * (2,375 ^ 2) * 3.9

Vt = 69.08 in ^ 3

Hollow volume

Vh = 3.14 * (1,525 ^ 2) * 3.9

Vh = 28.48 in ^ 3

We subtract:

Vt - Vh = 69.08- 28.48 = 40.6

40.6 in ^ 3 would be the volume of the toilet paper

We need to know what it costs to create 50, we know it costs $ 0.02 per cubic inch

Then it would be:

40.6 * 0.02 = 0.812

In other words, making one costs $ 0.812, so making 50 would cost:

0.812 * 50 = 40.6

In other words, it costs $ 40.6 to make the 50 rolls of toilet paper

4 0
3 years ago
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