2 years ago

Patricia is making two sizes of hamburgers: 0.5-pound and

Mathematics

1 answer:

pav-90 [236]2 years ago

3 0

Answer:

smart good job I can't never figure out that one

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Volume of cone round to the nearest 10th

guapka [62]

Answer: 63

Maybe?

If it’s wrong sorry :)

4 0

3 years ago

Perform the indicated operation 3+(-4)

Viefleur [7K]

3 + (-4) is the same thing as 3 - 4.

3 - 4 = -1

Hope this helped :)

3 0

4 years ago

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The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher

ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

$\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340$

Thus, the correct answer is

Option D) 340

7 0

3 years ago

If a piece of ribbon is 5 and 1 over 2. Feet long, how long is it in inches? 33 inches 55 inches 60 inches 66 inches

galben [10]

Answer:The answeris 66 inches.

Step-by-step explanation:

5 0

3 years ago

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Help me please. mad confused lol

SCORPION-xisa [38]

Answer:

P = 30 degrees, PQ = 6.93, PN = 8

Step-by-step explanation:

For the angle, just subtract the angles you already know from 180, so 180 - 90 - 60= P. P = 30 degrees.

For PQ, use tan60 = x/4, or 4tan(60), which equals 6.93.

For PN, use cos60 = 4/x, or 4/cos60, which equals 8.

Hopefully this helps- let me know if you have any questions!

7 0

3 years ago