The answer should be:
x = 5
So the answer is basically 5
Answer:
y=55
Step-by-step explanation:
First take note a triangle is always equal to a total of 180 degrees
now setup the equation.
y+40+y+30=180
rid of alike terms
70+2y=180
Now subtract 70 from both sides
2y=110
Now divide both sides by 2
y=55
Answer:
n = 6
Step-by-step explanation:
you can create this proportion:
18/n = n/6
cross-multiply:
n² = 108
n = 
= 
·
· = 2·3· or 6
Answer:
No
Mean diameter = 44, which is in the 40 - 44 cm group
Step-by-step explanation:
Given the data:
Diameter (cm) - mid point(X) - frequency(F) - - FX
35-39 - - - - 37 - - - - 8 - - 296
40-44 - - - 42 - - - 10 - - - 420
45-49 - - - 47 - - - 13 - - - 611
50-54 - - - 52 - - - 3 - - - 156
55-59 - - - 57 - - - 1 - - - 57
Mean of grouped data:
Sum of (F × X) / sum of F
1540 / 35 = 44
Answer:
x^2+y^2=121
Step-by-step explanation:
Since you are at (0,0), you don't need to put K or H for the equation (x-h)^2+(y-k)^2=a^2.
