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Ostrovityanka [42]

3 years ago

7

The perpendicular bisectors of ΔPQR intersect at point A as shown in the diagram. What is the radius of the circumscribed circle

of ΔPQR?

1 answer:

Novosadov [1.4K]3 years ago

6 0

The answer to this is 9.22

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The height of a baseball in feet x seconds after a batter hits it can be represented by the function f(x)=−2x2+10. How many feet

s344n2d4d5 [400]

Answer:

So, at 2 seconds the baseball reaches its maximum height and its maximum height is 69 feets.

Step-by-step explanation:

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I need to do these math problems. Can some one help?

vlada-n [284]

Answer:

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3 years ago

How do u write 3:4 and 6:8 as a fraction proportion

faltersainse [42]

3/4=6/8

hope this helps :)

3 0

3 years ago

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A line passes through the points (–1, –5) and (4, 5). The point (a, 1) is also on the line.

IgorC [24]

Answer:

a = 2

Step-by-step explanation:

Let's find the equation of the line using the 2 points given.

Let's call -1 as x_1 and -5 as y_1

also, 4 as x_2 and 5 as y_2

The equation of line is :

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

<em>Let's plug the points and get the equation of the line:</em>

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\y+5=\frac{5+5}{4+1}(x+1)\\y+5=2(x+1)\\y+5=2x+2\\y=2x-3$

Now, to find a, we substitute a in x and 1 in y of the equation of the line we just got:

$y=2x-3\\1=2(a)-3\\1=2a-3\\2a=4\\a=\frac{4}{2}=2$

4 0

3 years ago

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What is the image point of (-6, 9) after a translation left 4 uints and down 1 unit?

Alex17521 [72]

Answer:

(-10,8)

Step-by-step explanation:

So our original point is (-6,9).

A translation of 4 units to the left means that the x-value would go left by 4. In other words, we subtract 4 to -6. We subtract because going to the left means that it's going to the negative direction.

A translation of down 1 unit means that the y-value would go down by 1. In other words, we subtract 1. Again, we subtract because going downwards means that it's going to the negative direction.

Therefore, the new point would be:

$(-6-4,9-1)\\=(-10,8)$

6 0

3 years ago