Answer:
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Step-by-step explanation:
Answer:
R2 = 6.44
T2 = 8.82
Whole = 30.42
Step-by-step explanation:
R1 = 2.8 X 3.1
T1 = (1/2) X (2.4) X (5.4)
R2 = (5.4-3.1) X (2.8) = 6.44
T2 = (1/2) X (11.7-5.4) X (2.8) = 8.82
Whole = (1/2) X (11.7) X (2.4+2.8) = 30.42
Answer:
Look at Step by Step
Step-by-step explaination
All you need to do is find the frequency of the test scores.
70 = 2 dots
75 = 0
80 = 3 dots because there are 3 students that got a 80 %
85 = 3 dots because there are 3 students that got a 80 %
90 = 4 dots because there are 4 students that got a 90 %
95 = 3 dots
100+ = 0 dots
Answer:
a) x = 70
Step-by-step explanation:
70 (2) +20 +20
140 + 40
180
Answer:
∠2 = 51°
Step-by-step explanation:
The sum of supplementary angles = 180°
Equate the sum of the angles to 180 and solve for a
11a + 19 + 6a - 9 = 180
17a + 10 = 180 ( subtract 10 from both sides )
17a = 170 ( divide both sides by 17 )
a = 10
Hence
∠2 = (6 × 10) - 9 = 60 - 9 = 51°
