Answer:
34 say red is their favorite color
Step-by-step explanation:
Take the number of students and multiply by the fraction that like red
2/7 * 119
34
To find the area of the curve subject to these constraints, we must take the integral of y = x ^ (1/2) + 2 from x=1 to x=4
Take the antiderivative: Remember that this what the original function would be if our derivative was x^(1/2) + 2
antiderivative (x ^(1/2) + 2) = (2/3) x^(3/2) + 2x
* To check that this is correct, take the derivative of our anti-derivative and make sure it equals x^(1/2) + 2
To find integral from 1 to 4:
Find anti-derivative at x=4, and subtract from the anti-derivative at x=1
2/3 * 4 ^ (3/2) + 2(4) - (2/3) *1 - 2*1
2/3 (8) + 8 - 2/3 - 2 Collect like terms
2/3 (7) + 6 Express 6 in terms of 2/3
2/3 (7) + 2/3 (9)
2/3 (16) = 32/3 = 10 2/3 Answer is B
First to find the mean add up all the numbers
20+14+29+39+25+19+35
which is equal to 181 now divide that number by the amount of numbers in the set, at which there are 7
So divide 181 by 7
181/7=25.86
Now round
So the mean is 26
To find the range subtract the least number from the greatest number
In which the two numbers need here are 14 and 39
39-14=15
So the range is 15
Let's simplify the above expression :
