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cluponka [151]
3 years ago
15

XZ is a common external tangent to circles W and Y. What is the distance between the two centers of the circles? Round to the ne

arest hundredth.

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Construct a triangle by drawing a line parallel to XZ at Center W; intersecting the radius from Center Y to Z.


It is a right-angled triangle with one side at the same length as XZ = 42.

Length of the other side of the right-angle is the difference in radius = 19-11 = 8

Distance between centers = length of hypothesis

= sqrt(42^2 + 8^2)

= 42.755 = 42.76

Svetlanka [38]3 years ago
4 0
You can Draw a segment WY connecting the centers<span> of the </span>two circles<span>, and then draw a segment, WS, so that YS + SZ = YZ and WS ⊥ YZ).</span>
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Please answer this correctly
maxonik [38]

Answer:

See Below

Step-by-step explanation:

This is very simple, but I can help more if you're stuck.

Take the number of pounds multiplied by the cost per pound.

For example, if I had 5 pounds of peaches, and they are $2 per pound...

5 pounds * $2 per pound = $10

Try it on your own :)

7 0
3 years ago
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The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll follows a Normal distribution w
lilavasa [31]

Answer:

Given that the manufacturers claim is true, the probability that the sample mean area is 249.6 ft.² or less is 0.42074

Step-by-step explanation:

The manufacturer claims that mean amount of foil on each roll, μ = 250 ft²

The standard deviation of the measured amount of foil per roll, σ = 2 ft.²

The number of rolls tested by the restaurant, n = 10 rolls

The mean measured by the restaurant, \overline x = 249.6

Taking the sample means as individual score, we have;

The z-score, of the sample mean is given as follows;

z=\dfrac{\overline x -\mu }{\sigma }

At \overline x = 249.6, we have;

z = (249.6 - 250)/2 = -0.2

Therefore, the probability for a mean less than or equal to 249.6, we have;

The probability, P = P(z < -0.2) = 0.42074

The probability that the sample mean area is 249.6 ft.² or less given that the manufacturers claim is true, P = 0.42074.

7 0
3 years ago
The slope of the line below is -3. Use the coordinates of the labeled point to find the point-slope equation of the line.
muminat
Y-___enter y-coordinate of the point here= -3(x-__enter the x-coordinate here)
4 0
3 years ago
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The formula for the resistance of a conductor with voltage V and current I is r= v/1. Solve for V.
VikaD [51]
V=i x r is the formula 
8 0
3 years ago
the sum of two numbers is 75. The second number is three less than twice the first. what is the larger number?
KatRina [158]

Answer:

49

Step-by-step explanation:

If the smaller number is

x

, then the larger number is

2

x

−

3

Explanation:

(

x

)

+

(

2

x

−

3

)

=

75

3

x

−

3

=

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3

x

=

78

x

=

26

The numbers are 26 and 49.

5 0
3 years ago
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