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xeze [42]
3 years ago
7

(-2+1)+5(12 divided by 3)-9

Mathematics
1 answer:
Kay [80]3 years ago
4 0

Answer:

10

Step-by-step explanation:

(-2+1)+5(12\3)-9

(-1)+5(4)-9

-1+20-9

10

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While traveling at a constant speed in a car, the centrifugal acceleration passengers feel while the car is turning is inversely
kvv77 [185]

A = k/R where A = acceleration and R = radius of the turn and k is a constant to be found.

Substituting the given values:-

10 = k / 70

k = 10*70 = 700

So the equation of the motion is A = 700 / R

When the radius is 140 the acceleration is 700 / 140 = 5 ft/sec/sec ( answer)

4 0
2 years ago
About 2% of the population has a particular genetic mutation. 500 people are randomly selected.
S_A_V [24]

The standard deviation for the number of people with the genetic mutation in such groups is 3.1305.

<h3>Standard Deviation</h3>

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

Let X be the number of people with genetic mutation is a group of 500,

The formula of standard deviation is given as

SD=\sqrt{n*p(1-p)} \\SD=\sqrt{500*0.02*0.98} \\SD=3.1305

The standard deviation of the given sample is 3.1305

Learn more on standard deviation here;

brainly.com/question/28290366

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4 0
1 year ago
Franco read of a chapter of his history book in § of an hour. At this rate, how many chapters of his history book
hichkok12 [17]

Answer:

1 7/8

Step-by-step explanation:

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3 0
2 years ago
Half of the students in a freshman class are 14 years old. One-third are 15 and the rest are 13. Is the mean age greater than
Allisa [31]

the mean age is greater than the median age.

8 0
3 years ago
12+root of 35 divided by 2 + 12-2 root of 35 divided by 2
nadya68 [22]
So : 12+ \frac{\sqrt{35}}{2} + \frac{12-2 \sqrt{35} }{2}?

First, you want to bring everything together on the top of the fraction. 
12=24/2 so you can have \frac{24+ \sqrt{35}+12-2 \sqrt{35} }{2}

Add like terms -- 12 +24 = 36       \sqrt{35}-2 \sqrt{35} = \sqrt{35}

Now we are at \frac{24+ \sqrt{35} }{2} Which is the lowest possible simplified version while remaining at exact value. 

Feel free to check my math! I kinda did this off the top of my head. 
8 0
2 years ago
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