Try this option:
1. rule: P(E)+P(not E)=1.
2. according to the rule above
P(not E)=1-P(E)=1-0.3=0.7;
P(E)=1-P(not E)=(100-65)%=35%.
Answer:![\frac{20+5\sqrt[]{3} }{13}](https://tex.z-dn.net/?f=%5Cfrac%7B20%2B5%5Csqrt%5B%5D%7B3%7D%20%7D%7B13%7D)
Step-by-step explanation:
The scale factor of the drawing as described is; 1.5in/ft
<h3>Scale factor of drawings</h3>
According to the question;
- The given scale factor of the drawing is; 3 in: 2 ft.
In essence, 3 inches on the drawing board represents 2 ft of the object.
Hence, by finding the quotient of the units, we have;
Read more on scale factor;
brainly.com/question/2826496
Sin(pi/6) = 1/2
tan(pi/4) = 1
