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3 years ago

Help me with#17 and 18 its due tomorrow..

Mathematics

1 answer:

mars1129 [50]3 years ago

6 0

#17....... part A is 40xn=360 and n=9

part B is...I got this answer because 40xn=360 so its the same as 360/40 which equals 9

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A truck carries apples, grapes, and blackberries in the ratio of 4:3:4 if the apples weigh 160 pounds, how much the the truckloa

aleksandrvk [35]

Answer:

440 lbs

Step-by-step explanation:

4:3:4

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3 years ago

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2 years ago

The equation of a circle is ( x - 3) 2 + ( y + 2) 2 = 25. The point (8, -2) is on the circle.

Shtirlitz [24]

Answer:

x =8 is the equation of the tangent.

Step-by-step explanation:

Here the equation of the given circle is: $(x-3)^{2} + (y+2)^{2} = 25$

Now, comparing it with the general equation of circle: $(x-h)^{2} + (y -k)^{2} = r^2$

we get the central coordinates (h,k) = (3,-2)

So, the slope of the line joining center and (8, -2) = $\frac{-2 -(-2)}{8-3} = \frac{0}{5} = 0$

Since the slope of line = 0, line is parallel to x axis.

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(y-y0) = m (x-x0)

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or x =8 is the equation of the tangent.

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3 years ago