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Alika [10]
3 years ago
9

Over what interval would 50% of the entire population of engine speed values fall

Mathematics
1 answer:
max2010maxim [7]3 years ago
4 0
Do you have any numbers on the pop. Or speed?
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Subtract 5b − 3c from −8a − 2b − 10c
erik [133]

Answer:

-8a - 7b - 7c

Step-by-step explanation:

-8a - 2b - 10c - (5b - 3c)

Negate 5b and -3c

-8a - 2b - 10c - 5b + 3c = -8a - 7b - 7c

3 0
3 years ago
Read 2 more answers
What is the area of a sector with a central angle of 2pi/9 radians and a diameter of 20.6mm? Use 3.14 for Ali and round your ans
LuckyWell [14K]
- The area of the circle is:

 A=πr²

 A is the area of the circle.
 π=3.14
 r is the radius of the circle.

 - To calculate the area of <span> the sector indicated in the problem, you must apply the following formula:

 As=(</span>θ/2π)πr²

 As is the area of the sector.
 θ is the central angle (θ=2π/9)
 π=3.14
 r is the radius.

 - First, you must find the radius:

 r=Diameter/2
 r=20.6 mm/2
 r=10.3 mm

 - Now, you can substitute the values into the formula As=(θ/2π)πr². Then, you have:

 As=(θ/2π)πr²
 As=(2π/9/2π)(π)(10.3)²
 As=(π/9π)(π)(10.3)²
 As=(3.14/9x3.14)(3.14)(10.3)²

 - Finally, the area of the sector is:

 As= 37.01 mm²
6 0
3 years ago
Read 2 more answers
Which of these choices show a pair of equivalent expressions?
NISA [10]

Answer:

A. 6^2/7 and (√6)^7

Step-by-step explanation:

Because we can't get 6 out of root as a whole we need to use the power to show its value when we do so.

The power of (√6)^7 has is seven and degree of the root is 2 so we have to put 2/7 over 6 when we take it out of root.

6 0
2 years ago
A particular type of mold is growing 9.7% per hour. Assuming that mold growth continues at this rate and there were 14,000 spore
nydimaria [60]

Total mold spores at end of 9.30 am is 26901.

Step-by-step explanation:

Number of molds = 14000

Rate = 9.7% per hour

Number of hours = 12 am to 9.30 am =  9\frac{1}{2} hours

Growth of mold = 14000 * 9.7% * 9\frac{1}{2}

                            = 12901

Total mold spores at end of 9.30 am = 14000 + 12901

                                                                = 26901

Hence, the expected number of mold spores at 9.30 am is 26901.

7 0
3 years ago
Arkadaşlar soruyu bulabilirmisiniz 28=50-4n​
andrew11 [14]

Answer:

The answer is 8 because 28=50- 4n we have to group like terms so 28- 50= -4n therefore 28-50 will be -32 = -4n therefore we have to divide both side by the coefficient of n that is -4 and minus 4 goes to itself 1 and to - 32 8 because the minus sign will cancel the minus

3 0
3 years ago
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