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Irina-Kira [14]
3 years ago
8

The outside edge of a circular saw whose dimensions are measured in inches can be defined by the equation x2 + y2 = 33.0625. A h

ole needs to be cut in the center that can be defined by the equation x2 + y2 = 3.0625. The centers of the two curves are----------------- . The difference in the diameters of the circles is--------------------------- inches.
Mathematics
2 answers:
____ [38]3 years ago
7 0

Answer:

1) in the same place

2) 4.0

Eduardwww [97]3 years ago
3 0

Answer:

In the same place, And 4.0

Step-by-step explanation:

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"if the standard deviation of a group of 20 scores is 15, what is the variance?"
DerKrebs [107]

We have been given that the standard deviation of a group of 20 scores is 15 and we are asked to find variance.

Since we know variance is square of standard deviation. In order to find out the variance of the given data we have to take the square of 15.

\text{ Variance}=\sigma^{2}\\
=15^{2}=225

Therefore, our variance is 225.


7 0
2 years ago
2x² - 5x+1 has roots alpha and beta. Find alpha⁴+beta⁴ without solving the equation.
shepuryov [24]

Answer:

Step-by-step explanation:

\alpha+\beta=\dfrac{5}{2} \\\\\alpha*\beta=\dfrac{1}{2} \\\\\alpha^2+\beta^2=\dfrac{21}{4} \ (see\ previous\ post)\\\\(\alpha+\beta)^4=\dfrac{625}{16} \\\\=\alpha^4+\beta^4+4*\alpha^3*\beta+6*\alpha^2*\beta^2+4*\alpha*\beta^3\\\\=\alpha^4+\beta^4+4*(\alpha*\beta)(\alpha^2+\beta^2)+6*\alpha^2*\beta^2\\\\\alpha^4+\beta^4=(\alpha+\beta)^4-4*(\alpha*\beta)(\alpha^2+\beta^2)-6*\alpha^2*\beta^2\\\\= \dfrac{625}{16} -4*\dfrac{1}{2} *\dfrac{21}{4} -6*(\dfrac{1}{2})^2 \\\\

= \dfrac{625}{16}- \dfrac{168}{16}-\dfrac{24}{16}\\\\\\= \dfrac{433}{16}

7 0
2 years ago
the school cafeteria served 125.6 liters of milk on Monday and 5.34 more liters of milk on Tuesday than on monday.how many total
UkoKoshka [18]
The total amount will be
  total = (125.6 L) + ((125.6 +5.34) L) = (2*125.6 +5.34) L
  total = 256.54 L
5 0
3 years ago
Is 6/10 closer to 0 , 1 or 1/2
Vikentia [17]

Answer:

1/2

Step-by-step explanation:

5/10=1/2

7 0
3 years ago
Read 2 more answers
a pitcher pitches a ball to a hitter. the ball is hit towards center field hits the center field fence, then drop to the ground.
Leni [432]

Answer:

lol

Step-by-step explanation:

plz tell me

8 0
2 years ago
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