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2 years ago

Complete the equations with powers of 10.

Mathematics

2 answers:

Korvikt [17]2 years ago

8 0

Answer:

10³

10²

10¹

Step-by-step explanation:

411.92×1000=411,920

411.92×100=41,192

411.92×10=4,119.2

Vaselesa [24]2 years ago

8 0

Answer:

10³

10²

Step-by-step explanation:

411.92 × 10³ = 411920

411.92 × 10² = 41192

411.92 × 10 = 4119.2

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2 years ago

Two children own two-way radios that have a maximum range of 3 miles. One leaves a certain point at 1:00 P.M., walking due north

Grace [21]

Answer:

The answer is 21 minutes

Step-by-step explanation:

We use the equation Xf = Xo + vt

1) At 1:00 PM, child one leaves the starting point heading north at a constant velocity of 6 mi/hr or .1 [mi/min] (divide by 60 to convert from [mi/hr] to [mi/min])

2) He walks for 15 minutes before kid 2 starts walking. In 15 minutes he is able to cover 1.5 [mi]

$x_{1f1} =x_{o} +v_{1} t_{1} \\x_{1f1} =0+.1(15)\\x_{1f1} =1.5 [mi]$

3) Now, child 2 starts walking and we know that when the range reaches 3 miles, they won´t be able to communicate. So the sum of the final position of child 1 and child 2 must be 3[mi]