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8_murik_8 [283]
3 years ago
14

On a map drawn to scale, 2 cm represents 870 km. How long would a line segment be thats represents 130 kilometers?​

Mathematics
1 answer:
lesya692 [45]3 years ago
6 0

Answer:

15

Step-by-step explanation:

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Y-1/4=-3/8 solve for y
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I don’t know what to do with the 3 feet above the ground
Slav-nsk [51]

Answer:

3 seconds

Step-by-step explanation:

You want to set h(t)=3, then take the root such that t≠0. You would have:

3=3+48t−16t^2

Let's solve your equation step-by-step.

3=3+48t−16t2

Step 1: Simplify both sides of the equation.

3=−16t2+48t+3

Step 2: Subtract -16t^2+48t+3 from both sides.

3−(−16t2+48t+3)=−16t2+48t+3−(−16t2+48t+3)

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Step 3: Factor left side of equation.

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Step 4: Set factors equal to 0.

16t=0 or t−3=0

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So the ball was in the air for 3 seconds.

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