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4 years ago

Which number is NOT written in scientific notation? 8.7 × 10–5 3 × 10–8 25.67 × 10–2 6.7 × 103

Mathematics

1 answer:

alexandr1967 [171]4 years ago

6 0

Answer:

26.67X10^-2 would be incorrect since the decimal is in the wrong place.

Step-by-step explanation:

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Which figure is the image produced by applying the composition T 0,3 o R0,90 to figure R?

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4 years ago

A machine can print 300 posters in 10 minutes. How many posters can the machine print in 2 minutes?

olganol [36]

Answer: 60

Step-by-step explanation:

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3 years ago

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Plz show ur work and plz plz plz tell me by September 15 2016

Effectus [21]

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4 years ago

The function y = -16x2 + 1500 gives a parachute jumper's height y in feet

earnstyle [38]

Answer:

Step-by-step explanation:

so the question is asking about the time from 1500 feet to 1100 feet. How long did they fall, w/o a parachute. aka "freefall" so, at 1500 feet the jumper is really at time zero. so, plug in to the formula

1100 = -16 $x^{2}$ +1500

( x represents seconds so i'll change it to t so we know it's time )

1100 = -16 $t^{2}$ + 1500

now we can solve for t , to see how long the jumper falls

-400 = - 16 $t^{2}$ ( subtracting 1500 from both sides of equation )

25 = $t^{2}$ ( dividing both sides by -16 )

oh.. look at how nice that turns out.. :)

$\sqrt{25}$ = t ( take the square root on both sides )

5 = t

the jumper fell for 5 seconds to get to 1100 feet

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3 years ago