The buttonhole size needed to fit the button is 3cm.

The solution is as follows:
Solve for d when C = 9.42 cm=2πr
d = 2r
r = C/2π = 9.42 / 2π
r = 1.49923956393
d = 2(1.49923956393) = 2.99847912785 or 3cm

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8 0

3 years ago

Which answers I should have to answer

Nana76 [90]

Given:

The table of point scored in 5 games.

After game 6, the mean number of points scored per game is 9.

To find:

The points scored by Maya in game 6.

Solution:

Let x be the points scored by Maya in game 6. Then sum of scores in all 6 games is:

$Sum=8+12+10+6+14+x$

$Sum=50+x$

We know that, the formula for mean is:

$\text{Mean}=\dfrac{\text{Sum of all observations}}{\text{Total number of observations}}$

So, the mean number of points scored per game is:

$\text{Mean}=\dfrac{50+x}{6}$

It is given that the mean number of points scored per game is 9.

$\dfrac{50+x}{6}=9$

$50+x=9\times 6$

$x=54-50$

$x=4$

Therefore, the correct option is A.

6 0

3 years ago

3/14 k+(-1)+(-4)-2/7 k

cupoosta [38]

Answer:

Explanation:

(3/14)k - 1 - 4 - (2/7)k = 0
(3/14)k - (4/14)k - 5 = 0
(-1/14)k = 5
-k = 5 x 14
k = -70

6 0

3 years ago