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3 years ago

PLEASE HELP BEST ANSWER GETS BRAINLIEST AND 50 POINTS

1 answer:

6 0

For example, the probability of choosing a male who prefers sports cars is 39/240 or 16%. The probability of choosing a male is 60/180 = 25%.

Two Way Relative Frequency Table. To convert counts into relative frequencies, divide the count by the total number of items. In the above table, the first count is for men / Rom-com (count=6), so 6/60 = 0.1.

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Answer:

144

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4 years ago

An astronaut on the moon throws a baseball upward. The astronaut is 6 ft 6 in tall, and the initial velocity of the ball is 40 f

weqwewe [10]

Answer:

t = 0.293 s and 14.52 s

Step-by-step explanation:

The heights of the ball in feet is given by the equation as follows :

$S = -2.7t^2+40t+6.5$

Where t is the number of seconds after the ball was thrown.

We need to find is the ball 18 ft above the moon's surface.

Put S = 18 ft

$-2.7t^2+40t+6.5=18\\\\-2.7t^2+40t=18-6.5\\\\-2.7t^2+40t-11.5=0$

It is a quadratic equation. Its solution is given by :

$t=\dfrac{-40+\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)},\dfrac{-40-\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)}\\\\t=0.293\ s,14.52\ s$

So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.

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3 years ago

Use the above figure to answer the following questions. Show your work if possible

LenKa [72]

#1 is A & B (points connect)
#2 is A & B & D (because they all touch)
#3 is Plane DFG & Plane GFA
#4 is A & B & D & F

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3 years ago