Answer:
Area of ABCD = 45.1 cm²
Step-by-step explanation:
From the figure attached,
Area of ABCD = Area of ΔBCD + Area of ΔABD
Area of ΔABD =
sin(55°) =
sin(55°) =
AB = 10sin(55°)
AB = 8.19 cm
cos(55°) =
=
AD = 10cos(55°)
AD = 5.74cm
Area of ΔABD =
= 23.51 cm²
Area of ΔBCD =
=
tan(38°) =
BE =
Similarly, DE =
Since, BE + DE = 10 cm
CE(1.28 + 1.04) = 10
CE(2.32) = 10
CE = 4.31 cm
Area of ΔBCD =
= 21.55 cm²
Area of ABCD = Area of ΔBCD + Area of ΔABD
= 21.55 + 23.51
= 45.06
≈ 45.1 cm²
Answer:
y=x-2
Step-by-step explanation:
If you have drawn the graph of .
To determine the equation of the line which should be drawn to solve the equation: x² - 4x +3=0
Simply carry out the subtraction:
The equation of the line which should be drawn is: y=x-2
What this means is simply:
If
Answer:
Probability of winning the prize will be 0.222
Step-by-step explanation:
Odd against Deborah's winning the first prize are 2 to 7
Means ratio of unfavorable outcomes to favorable outcomes
Total number of outcomes = 2+7 =9
We have top find the probability of winning the first prize
So probability
28 / 35 = 0.8
0.8 x 100 = 80
100-80= 20
therefore 20%
Answer:
1 and 3
Step-by-step explanation:
The reason 1 and 3 are similar due to the fact 3x2 is 6 (one side of 3) and 5x2 is 10 (another side of 3) therefore they are similar because one is sized up slightly.