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Ymorist [56]
3 years ago
13

Subtract and simplify Show work (-5y^2-9y-4)-(-2y^2-y+8)

Mathematics
1 answer:
katrin2010 [14]3 years ago
3 0

Answer:

-3y^2-8y-12

Step-by-step explanation:

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Jake made cupcakes for his birthday. He made 13 chocolate and 9 vanilla. What percent of the cupcakes
Leona [35]

Answer:

59 1/11 %

Step-by-step explanation:

13 chocolate and 9 vanilla = 22 total cupcakes

Percent chocolate = 13 chocolate / 22 total

                               =13/22

                               =.59090909

                               =59 1/11 %

                           

7 0
3 years ago
A circle has a center of (5,-5) and goes through (6,-2). What is the radius?
Fittoniya [83]
Start with the equation of a circle whose center is at (h,k) and whose radius is r:

(x-h)^2 + (y-k)^2 = r^2

Substituting the given coordinates of the center:

(x-5)^2 + (y-[-5])^2 = r^2, or (x-5)^2 + (y+5)^2 = r^2

Substituding the given coordinates of a point (6,-2) on the circle:

(6-5)^2 + (-2+5)^2 = r^2

Simplifying:

1^2 + 3^2 = r^2, or 1 + 9 = r^2, or 10= r^2.  Then r = sqrt(10).

6 0
3 years ago
Mission Control sends a signal to a Mars robot to travel to a mysterious rock 52.8 meters away. A return signal 59.0 minutes lat
Andrei [34K]
The response time includes the round-trip signal time plus the robot's travel time.
  59 min = 2*(9.5 min) +travel time
  59 min -2*(9.5 min) = travel time = 40 min

The speed is distance / travel time
  speed = (52.8 m)/(40 min) = 1.32 m/min

The robot's average speed was 1.32 meters per minute.
4 0
4 years ago
Select all true statements:
Olegator [25]

Answer:

Step-by-step explanation:

Dilating a segment can change the length.  TRUE

A dilated line segment is parallel to its preimage.  TRUE

6 0
3 years ago
Which statement is true?
PilotLPTM [1.2K]

Answer:

  The graph of y=log(x)+4 is the graph of y=log(x) translated 4 units up.

Step-by-step explanation:

The translation ...

  y = log(x -h) +k

translates the log function right h units and up k units.

The only description matching the equation is ...

  The graph of y = log(x)+4 is the graph of y = log(x) translated 4 units up.

5 0
3 years ago
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