Answer:
x = 39.1
Step-by-step explanation:
<u>Points to remember</u>
Mean of a data set is given by
Mean = (sum of data set)/Total number of data
<u>To find the value of x</u>
It is given a data set
31.7, 42.8, 26.4, x
Mean = 35
Sum of data set = 31.7 + 42.8 + 26.4 + x = 100.9 + x
(100.9 + x)/4 = 35
100.9 + x = 35 * 4 = 140
x = 140 - 100.9 = 39.1
Therefore x = 39.1
Answer:
0.71
Step-by-step explanation:
P( b or c) = P(b) + P(c) 0 P(b and c)
P(b) = 10/35 = 0.2857
P(c) = 15/35 = 0.42857142857
10/35 + 15/35 - 0 = 25/35, or 0.71
The area of a triangle is taken by multiplying the length of the base times the height then dividing by 2.
l = 14cm
h = 8cm
A =
A =
A =
A = 56
Answer: Yes
Step-by-step explanation: To determine whether 7/3 is a rational number, remember all fractions either positive or negative are rational numbers.
Therefore, 7/3 is a rational number.