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RoseWind [281]
3 years ago
15

What is mean in math?​

Mathematics
1 answer:
Troyanec [42]3 years ago
8 0

Answer:

In mathematics and statistics, the arithmetic mean, or simply the mean or average when the context is clear, is the sum of a collection of numbers divided by the number of numbers in the collection. The collection is often a set of results of an experiment, or a set of results from a survey.

Step-by-step explanation:

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Is -12.161616 rational
Mars2501 [29]

Answer:

depends

Step-by-step explanation:

If you mean just -12.161616, then it’s rational.

If you mean recurring decimal, then it’s not.

8 0
3 years ago
A bowl of mixed vegetables contains carrots, broccoli, and cauliflower. If the bowl contains 80 vegetable pieces, and 25% of the
Ksenya-84 [330]

Answer:

Hey there! Since 20 is 25% of 80, there will be 20 carrots. I hope this was helpful!

Step-by-step explanation:

3 0
3 years ago
Explain the following types of angles:
ZanzabumX [31]

Answer:

acute angle measure less than 90 degrees, right angle measure 90 degrees, Obtuse angle measure more than 90 degrees, straight angle equal to 180 degrees, reflex angle is an angle greater than 180° and less than 360°, complementary angle either of two angles whose sum is 90°, supplementary angle either of two angles whose sum is 180°

6 0
3 years ago
At 1:00 p.m. a car leaves st. louis for chicago, traveling at a constant speed of 65 miles per hour. at 2:00 p.m. a truck leaves
Maurinko [17]
Let x =  miles traveled by car
Let y = miles traveled by truck.

Because the total distance is 305 miles,
x + y = 305       (1)

Let t = hours of travel by truck. Because the truck speed is 55 mph,
55*t = y            
or 
t = y/55              (2)

The car has an hour head start, therefore it travels for (t + 1) hours.
Because the car travels at 65 mph,
65*(t + 1) = x
Substitute (2) to obtain
65*(y/55 + 1) = x
or
1.1818y + 65 = x        (3)

From (1), obtain
1.1818y + 65 = 305 - y
2.1818y = 240
y = 110
x = 305 - y = 195

From (2),
t = 110/55 = 2 hours

The two vehicles pass each other at 2:00 pm + 2 hours  = 4:00 pm

Answer: 4:00 pm
8 0
4 years ago
Which shows the correct substitution of the values a, b, and c from the equation 1 = –2x + 3x2 + 1 into the quadratic formula? Q
enyata [817]
1=-2x+3x^2+1\\\\3x^2-2x+1-1=0\\\\3x^2-2x=0\\\\\boxed{a=3;\ b=-2;\ c=0}
6 0
4 years ago
Read 2 more answers
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