Answer:
339.5
Step-by-step explanation:
-67.9x+679= y
-67.9*5+679=
-339.5+679= 339.5
no -17 is greater than -6
<h3>
Answer: 5.5 which is choice B</h3>
Have a look at the diagram I posted below. I marked on your image to add in another angle. This angle is also 20 degrees because of congruent alternate interior angles (horizontal lines are parallel). This angle I add in is the reference angle of the triangle
opposite the reference angle is the vertical side x
adjacent to the reference angle is the horizontal side 15
We'll use the tangent rule. Make sure your calculator is in degree mode.
tan(angle) = opposite/adjacent
tan(20) = x/15
15*tan(20) = x <<-- multiply both sides by 15
x = 15*tan(20)
x = 5.45955 <<--- use calculator; this is approximate
x = 5.5 <<--- round to one decimal place
Answer:
#3
<u>What was the area left unpainted?</u>
Option D
#4
<u>How big is Ben's share?</u>
- 998.50 - 18.6² = 652.54 m²
Option A
#5
<u>The area of a circular pool whose radius is 2 m:</u>
- A = π² = 3.14*2² = 12.56 m²
Option A