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Elodia [21]
4 years ago
6

Help I’m so confused

Mathematics
1 answer:
svetoff [14.1K]4 years ago
4 0

Answer:

I think c

Step-by-step explanation:

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A plane travels 360,000 meters in 900 seconds. What was its speed
Umnica [9.8K]
900 / 60 = 15
So, the plane traveled 360,000 meters in 15 minutes.
Generally, we do per hour. So, 15 mins * 4 = 60 mins or 1 hour. Because we multiplied the time by 4, we also need to multiply the distance by 4. 360,000 * 4 = 1440000 meters. The plane was traveling at 1440000 meters per hour.

However, it does not make sense to use meters for this long of a distance. I am going to convert it into miles (let me know if the question asks for a different unit of distance). 1 mile equals 1609.34 meters. Divide 1440000 by 1609.34 to get how many miles. 1440000 / 1609.34 = 894.7767408.

Therefore, the plane is going about 895 miles per hour--pretty fast!

7 0
4 years ago
Read 2 more answers
Please help for 20 points
butalik [34]

Answer:

communitive property of multiplication

7 0
4 years ago
Put a lid on it! The supplier is considering two changes to reduce to 1% the
bija089 [108]

Answer:

A) 3.996 inches

B) 0.01

C) option B

Step-by-step explanation:

Note: The diameter of the lid is between : 3.95 and  4.05

A) calculate the supplier set mean diameter

std = 0.02 inch

P( x < 3.95 ) = 1% = 0.01

= P ( Z < (\frac{3.95 - u }{0.02}) ) = P ( Z < -2.3263 ) = 0.01

therefore :

(\frac{3.95 - u }{0.02})  = -2.3263

hence :<em> u </em>= 3.996 inches ( mean diameter )

B) At mean diameter = 3.98 calculate the value of std

P ( X < 3.95 ) = 0.01

= P ( Z < ( \frac{3.95-3.98 }{std } ) )  = P ( Z < -2.3263 ) = 0.01

therefore

( \frac{3.95-3.98 }{std } ) = -2.3263

hence std = 0.01 inch

C) option B is preferable because its mean diameter is smaller and  the percent of lids too large to fit is considered more carefully using option B

7 0
4 years ago
Find the area of the circle
MA_775_DIABLO [31]

Answer:

254.34

Step-by-step explanation:

the radius is 9 so the equation goes like this.

Area = 9 x 9 x 3.14 or A = Pi x r squared

4 0
4 years ago
2.32x10 to the fifth power
laiz [17]
2.32 x 10⁵ = 232000

This can be solved by multiplying 2.32 to the product of 10 multiplied 5 times.

10⁵ = 10 * 10 * 10 * 10 *10
10⁵ = 100,000

2.32 x 100000 = 232000

The given equation is the standard form of a decimal number. It is used to write down a very large or very small number easily.

There are a lot of standard forms. Like: Standard form of an equation and Standard form of a polynomial.


3 0
4 years ago
Read 2 more answers
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