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amm1812
3 years ago
11

Which inequalities have -0.5, 2.5, and 4 as part of the solution set? Select all that apply. z>-3 z<5 z<4 z<_4 z>

0
Mathematics
2 answers:
ololo11 [35]3 years ago
5 0

Answer:

z>-3\\z

Step-by-step explanation:

Check \ z>-3\\-0.5>-3\\2.5>-3\\4>-3\\Hence \ these \ numbers \ are \ part \ of \ solution \ set \ of \ the \ inequality\\\\Check \ z

Check \ z>0\\-0.5\not>0\\Hence \ these \ numbers \ are \ not \ part \ of \ the \ solution \ set \ of \ inequality

NISA [10]3 years ago
3 0

Answer:

A, B, D

Step-by-step explanation:

I got this correct because i took the quiz

(Hope this helps for kids who do online school!)

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Kenny has a 1/3 probability of getting a hit and a 1/6 probability of drawing a base-on-balls every time he appears at the plate
Aleonysh [2.5K]

Answer:

He expects that his bonus will be $210,000.

Step-by-step explanation:

For each plate appearence, there are only two possible outcomes. Either he gets on base(base hit or bases-on-balls), or he does not. The probability of getting on base on each plate appearence is independent of other plate appearences. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

600 plate appearances this year

So n = 600.

Expected number of hits

p = \frac{1}{3}

So

E(X) = np = 600\frac{1}{3} = 200

Expected number of base on balls.

p = \frac{1}{6}

So

E(X) = np = 600\frac{1}{6} = 100

Bonus

$1,000 for each hit and $100 for each base-on-balls he gets.

200*1,000 + 100*100 = 210,000

He expects that his bonus will be $210,000.

3 0
3 years ago
Fred and Wilma have a booth at the county fair. Fred is selling bowling balls, and has made $129. Wilma is selling bowling shoes
S_A_V [24]

Answer:

129 + 20p

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A car travels at a constant speed.
ad-work [718]

Answer:

see below

Step-by-step explanation:

<h3>Given</h3>
  • Distance is 142.2 m, correct to 1 decimal place
  • Time is 7 seconds,  correct to nearest second
<h3>To find:</h3>
  • Upper bound for the speed
<h3>Solution </h3>

<em>Upper bound for the speed  = upper bound for distance/lower bound for time</em>

  • Upper bound for distance = 142.25 m  (added 0.1/5 = 0.05)
  • Lower bound for time = 6.5 seconds  (subtracted 1/2 = 0.5)

<u>Then, the speed is:</u>

  • 142.25/6.5 = 21.88 m/s
  • 21.88 = 21.9 m/s correct to 1 decimal place
  • 21.88 = 22 m/s correct to nearest m/s

4 0
3 years ago
What is the slope of the line represented by the equation y = 4/5x -3?
ankoles [38]

Answer:

4/5

Step-by-step explanation:

Slope

    Slope y-intercept of a line: y = mx + b

Where m is the slope and b is the y-intercept.

 \sf y =\dfrac{4}{5}x-3\\\\\boxed{Slope = \dfrac{4}{5}}

7 0
2 years ago
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Pump-a-Bunch Water Pump Company has a sump pump that will pump water with a flow of 2500 gallons per hour. Is the number of gall
Alexxx [7]

Answer:

25

Step-by-step explanation:

because

7 0
3 years ago
Read 2 more answers
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