Probability
I get 1.89 also. Not sure if there is a typo or I made a mistake.
Math
Subtract one equation from the other to get: R=M/2. If there is no such option, decide which answer to choose.
statistics
Calculate the Z-score: Z=(10-5.7)/1.8=2.39 Look up the normal distribution table for the corresponding probability for LESS than 10 years, subtract this probability from 1.0 to get the probability of service of 10 years or more. Table link: http://www.math.unb.ca/~knight/utili...
algebra
First problem is correct. A direct variation will have the y-intercept as zero, so it is in the form y=kx, where k is a constant. In other words, a direct variation is a straight line that passes through the origin. Q2 and Q3 are not direct variations, because the y-intercepts...
algebra
See other response.
maths
Area of triangle = bh/2 Medians meet at one third from the base, so h'=h/3. Therefore triangles with the vertex at G is one third the area of the whole triangle, or 27/3=9 cm².
Functions 11: Series and Sequence 2
Let the four terms be a,b,c,d, and be the common ratio. b=ar c=ar² d=ar³ a+b=a(1+r)=3 c+d=ar²(1+r)=4/3 (c+d)/(a+b) = r² = (4/3)/3=4/9 => r=√(4/9)=±2/3, assume 2/3 a+b=a(1+r)=a(1+2/3)=5a/3=3 => a=9/5 b=ar=6/5 c=ar²=4/5 d=ar³=8/15
math
in an equation y=mx+b where m=slope, and b=intercept. Compare with the given equation y=(2-a)x + a we conclude that m=2-a, b=a Can you figure what the slope and intercept are?
math
Dilation means expansion. If it is not mentioned about which point dilation occurs, it is about (0,0). In such a case (also the present case), dilation by a factor of k means multiply all x and y coordinates by k. For example, a point originally at (2,1) will be at (4,2) after...
math
See http://www.jiskha.com/display.cgi?id=1356729021
Pages: <<Prev | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | Next>>
For Further Reading
