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cricket20 [7]
2 years ago
7

How many white marbles are there?

Mathematics
1 answer:
vitfil [10]2 years ago
7 0
I believe the answer is 6 white marbles. how i figured that out was i made an equation. i took the variable Y (for the yellow marbles) times 2 minus 6 equals 18. you then add 6 to the other side of the equal sign to cancel out the 6. you then have y(2)=24. you divide y and 24 by 2. you get 12 yellow marbles. next step is to take 18 - 12. you are left with 6 white marbles. hope this helps!

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A synthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard
Sedaia [141]

Answer:

The standard deviation reduces when sample size (n) increases

Step-by-step explanation:

From the above information given, we have that mean = 75.5

Standard deviation = 3.5

But Standard deviation = √summation (x-u)/n

This simply implies that when sample (n) is increased there would be a reduction in the standard deviate.

7 0
3 years ago
A water and sprinkle our sins water out in a circular pattern how many feet away can it spread water if the area formed by the w
ludmilkaskok [199]

Answer:

11  feet away.

Step-by-step explanation:

Given:

A water and sprinkle our sins water out in a circular pattern

Area formed by the watering pattern is 379.94 square feet

To find:

How many feet away can it spread water means we have to find distance from the middle point to the last end of circular pattern of water sprinkling (radius of a circle) = ?

solution:

By using ,Area of a circle = \pi r^{2}

Area of a circle = 379.94 square feet  (given)

\pi r^{2} = 379.94

3.14\times r^{2}  = 379.94\\

Dividing both side by 3.14

r^{2}  = \frac{379.94}{3.14}  = 121

Taking square root both side

r = \sqrt[2]{11\times11}        (Taking common)

r = 11

Therefore, radius = 11

Thus,  it can  spread water 11  feet away.

8 0
3 years ago
The volume of a cone with height h and radius r can be found using the formula V = ²h
asambeis [7]

V=\frac{\pi}{3}(9^2)(10)=\boxed{300\pi \text{ ft}^3}

3 0
2 years ago
Can someone help its due soon
Pani-rosa [81]

Answer:

x=43

Step-by-step explanation:

80+65=145

a quadrilateral has 360 degrees

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3x+2x=5x

5x=215 degrees (divide by 5)

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PLEASE GIVE ME BRAINLIEST!!<3

7 0
3 years ago
!!!! PLEASE HELP!!!!!!
Nady [450]
I’m guessing C
(It’s probably wrong, I just need points)
3 0
3 years ago
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