The sequence 20 , 11 , 2 , -7 is an arithmetic sequence.
The common difference is (20 - 11) = (11 - 2) = (2 - -7) = 9
The common difference is 9.
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Answer:
(b) AB overbar congruent to CD overbar
Step-by-step explanation:
AB with an overbar is the way that <em>line segment AB</em> is designated, where appropriate typesetting is possible. Thus the statement the line segments are congruent is fully equivalent to ...
AB overbar congruent to CD overbar
Answer:
-3.5
Step-by-step explanation:
Flip the equation so it's 0 - 3.5 which would give you -3.5
The intercepts are the points where the line meets with the x axis and the y axis. First let us find the equation of the line.
Finding slope:
slope=change in y/change in x (y2-y1/x2-x1)
slope=-3-(-8)/-4-(-1)=5/-3=-5/3
Finding y-intercept:
y=mx+b
-8=-5/3(-1)+b
b=-9 2/3
y intercept: (0,-9 2/3)
Equation: y=-5/3x-9 2/3
Since we already have the y intercept let us find the x intercept by plugging 0 in the place of y in the equation.
0=-5/3x-9 2/3
x=29/3x(-3/5)
x=-29/5
x intercept: (-29/5,0)
answers: (0,-9 2/3) and (-29/5,0)
Answer: C. 6
Therefore, 6 machine R was used.
Step-by-step explanation:
Given;
Time taken for machine R = 36 hours
Time taken for machine S = 18 hours
The fraction of work completed by machine R and S in 1 hour is ;
R = 1/36
S = 1/18
Let n represent the number of each type of machine used to do the job.
Time taken for n machine R and S is 2 hours.
The fraction of job completed by n Machine R and S is;
n(R +S) = 1/2
Since R = 1/36 and S = 1/18
n(1/36 + 1/18) = 1/2
n = 1/2/(1/36 + 1/18)
n = 6
Therefore, 6 machine R was used.