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4 years ago

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Mathematics

1 answer:

Phoenix [80]4 years ago

4 0

The answers is 11x+2 I’m pretty sure. I can’t tell if your x3 was an exponent or multiplying.

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Light travels at the speed of approximately 3.0 × 108 meters per second. Find the time in minutes required for light to travel f

expeople1 [14]

Speed = distance / time => time = distance / speed
speed = 3x10^8 x 60 = 180x10^8 m per minute
time = 1.5x10^11/180x10^8 = 150x10^9/180x10^8 = 5/6x10 = 8,3 minutes

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3 years ago

A ball shaped like a sphere has a radius of 2.7 centimeters. Which measurements is closest too the volume of the ball in cubic c

Advocard [28]

About 82.45 centimeters cubed because the equation for volume of a sphere is 4/3 pi times radius cubed

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3 years ago

1. Find the volume of the cylinder. (no units-round to nearest tenth<br> 7 km<br> 8 km

postnew [5]

Answer:

1407.43 would be your answer

Step-by-step explanation:

The formula is $\pi r^2h$ , so plug 8 and 7 into the equation, and you'll get your answer. Hope this helps :)

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3 years ago

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4 years ago

Read 2 more answers

Future scientists: Education professionals refer to science, technology, engineering, and mathematics as the STEM disciplines. A

nalin [4]

Answer:

The probability that the proportion of freshmen in the sample of 150 who plan to major in a STEM discipline is between 0.29 and 0.37 is 0.3855

Step-by-step explanation:

The probability that the proportion of freshmen in the sample of 150 who plan to major in a STEM discipline is between 0.29 and 0.37 can be calculated by finding <em>z-scores</em> and subtracting P(z<z(0.29)) from P(z<z(0.37))

z-score in the binomial distribution of 28% of freshmen entering college in a recent year planned to major in a STEM discipline can be calculated using the equation:

$z=\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } }$ where

p(s) is proportion of freshmen we are interested (0.37, 0.29)

p is the proportion found in recent year found by research group (28% or 0.28)

N is the sample size (150)

Then z(0.37)= $z=\frac{0.37-0.28}{\sqrt{\frac{0.28*0.72}{150} } }$ ≈ 2.4550 and P(z<2.4550)=0.993

z(0.29)= $z=\frac{0.29-0.28}{\sqrt{\frac{0.28*0.72}{150} } }$ ≈ 0.2728 and P(z<0.2728)=0.6075

Then P(z(0.29)<z<z(0.37))=0.993-0.6075=0.3855

4 0

3 years ago