3 years ago

How would you graph the inequality 5x+8y>=250? Pls help me...

Mathematics

1 answer:

S_A_V [24]3 years ago

5 0

Answer: hope this helps I guess?

Step-by-step explanation:

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5 dollars for 2 cans of tuna

Lera25 [3.4K]

Answer:

5 times 2=10 well i guess this was a joke right?

Step-by-step explanation:

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3 years ago

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Scores from an exam are normally distributed with a mean of 85 and a standard deviation of 5. Suppose 188 students take the exam

charle [14.2K]

The mean is $\mu=85$ and standard deviation is $\sigma=5$ . Then the variable $X\sim N(85,5)$ .

Use substitution $Z=\dfrac{X-\mu}{\sigma}=\dfrac{X-85}{5}$ , then the variable $Z\sim N(0,1)$ .

The probability $Pr(X>80)$ can be calculated in the following way:

for X=80, $Z=\dfrac{80-85}{5} =-1$ and $Pr(X>80)=Pr(Z>-1)$ . From the diagram $Pr(Z>-1)=0.34+0.34+0.135+0.025=0.84$ .

Conclusion: if 188 students take the exam, then 188·0.84=157.92 (157) would receive a score above 80

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3 years ago

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There are two connected gears. One has 60 teeth and it makes 50 complete revolutions in a minute. How many complete revolutions

VikaD [51]

60/40 *50 = 75

75 revolutions

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3 years ago

a wall is 2m at one end and 2.4m at the other end. the area of the wall is 26.4m squared. what is the length of the wall?

andrew11 [14]

Since the height is different on both ends, we can assume that the wall is a trapezoid. Knowing that, we can replace the measures we know in the formula and our onky variable is the length of the wall - we only need to isolate it. A= ((b+B)h)/2 26.4=((2+2.4)h)/2 52.8=4.4h h=12

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3 years ago

Plz help..................

Misha Larkins [42]

The answer isn't A or B because those two are not factored. D is wrong because 8•8=64 not 16. So that leaves us with C (4•4=16).

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3 years ago