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bogdanovich [222]
4 years ago
15

Hey, do you mind helping me? what are the roots of x in -10x + 12x - 9 = 0?

Mathematics
1 answer:
Alex73 [517]4 years ago
3 0

Answer:

x=−6±3√5

Step-by-step explanation:

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4. A circle is centered at (−8, −13) and has a radius of 13. What is the equation of the circle? * (x + 8)² + (y + 13)² = 169 (x
sattari [20]

Answer:

(x + 8)^2 + (y + 13)^2 = 13^2

Step-by-step explanation:

Write out (x - h)^2 + (y - k)^2 = r^2.  Recognizing that the center is at

(h, k), with h = -8 and k = -13, and that the radius is 13, we get:

(x + 8)^2 + (y + 13)^2 = 13^2

7 0
3 years ago
This is K12 in sixth grade
zmey [24]

Answer:

13

Step-by-step explanation:

divide 150 by 12

the answer is 12.5

round 12.5

;)

8 0
3 years ago
Read 2 more answers
If a sprinkler waters 1/15 of a lawn in 1/5 of an hour, how much time will it take to water the entire lawn?
GaryK [48]

Answer:

3 hours

Step-by-step explanation:

To solve this we can first find out how many minutes is 1/5th of an hour which is: 12 mins.

Now we know it will take 15 sets of 12 minutes to water the full lawn so we can multiply 15*12 to get our answer.

15*12 = 180

Now we divide 180 (minutes) by 60 (minutes) to find out how many hours that is:

180/60 = 3 hours

Hope this helped! If possible please leave a thanks so I can continue to help out others :),

comment if you have any questions.

5 0
3 years ago
Read 2 more answers
For the rotation - 660°, find the coterminal angle from 0° < 0 < 360°, thequadrant and the reference angle.
guajiro [1.7K]

Given the angle:

-660°

Let's find the coterminal angle from 0≤θ≤360.

To find the coterminal angle, in the interval given, let's keep adding 360 degrees to the angle until we get the angle in the interval,

We have:

Coterminal angle = -660 + 360 = -300 + 360 = 60°

Therefore, the coterminal angle is 60°.

Since 60 degrees is between 0 to 90 degrees, is is quadrant I.

60 degrees lie in Quadrant I.

Also since it is in quadrant I, the reference angle is still 60 degrees.

ANSWER:

The coterminal angle is 60°, which lies in quadrant I, with a reference angle of 60°

3 0
1 year ago
Evaluate 0.3y + y/z when y = 10 and z = 5
maxonik [38]

Answer:

I think the answer is 5

Step-by-step explanation:

3+2=5

4 0
3 years ago
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