Please need help thank you

Mathematics

1 answer:

andrey2020 [161]3 years ago

6 0

Answer:

I think that is is the 3rd and fourth one

Step-by-step explanation:

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I need help with a math problem

soldi70 [24.7K]

Answer:

19,680

Step-by-step explanation:

1 lb = 16 ounces

1230 lb = 1230 * 16 ounces = 19,680 ounces

5 0

2 years ago

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average SA

kotegsom [21]

Answer:

I should use at least 304 students

Step-by-step explanation:

Margin error (E) = t × sd/√n

E = 40

sd = 300

confidence level (C) = 98% = 0.98

significance level = 1 - C = 1 - 0.98 = 0.02 = 2%

t-value corresponding to 2% significance level and infinity degree of freedom is 2.326

n = (t×sd/E)^2 = (2.326×300/40)^2 = 17.445^2 = 304 (to the nearest integer)

3 0

2 years ago

camelback mountain has an elevation change of 1,264 feet. how many pennies would it take to make a stack that high ? make sure y

vredina [299]

Answer:

106,782,720

Step-by-step explanation:

84,480 pennies

There are 84,480 pennies in a mile. Yes, that is correct – 84,480 pennies! An interesting fact to know: 16 pennies laid side by side constitute 12 inches in length, or one foot, and since 5,280 feet equals one mile, that gives us 84,480 pennies in a mile.

84,480x1264=106,782,720

hope this helps!

Brainliest pls

Pls fully rate

Have a great day!

8 0

1 year ago

A jet can travel at a speed of 500 miles per hour. How far will the plane get it it flies at a full speed for 4.5 hours.

SpyIntel [72]

Answer:2250 miles

Step-by-step explanation:

If the jet travels 500 miles in an hour then in 4 hours it will travel 2000 miles. In half an hour it will travel 250 miles.