Answer:
60° : 75° : 120° : 105°
Step-by-step explanation:
I like to work these by considering the relationship between a "ratio unit" and the angle it represents. Here, the sum of ratio units is 4+5+8+7 = 24. The sum of angles in a quadrilateral is 360°, so each ratio unit must stand for ...
360°/24 = 15°
Multiplying the ratio units by this value, we find the angles to be ...
(4 : 5 : 8 : 7) × 15° = 60° : 75° : 120° : 105°
The number of gallons of paint needed to paint the entire fence is 26.4 gallons.
<h3>Area of rectangle</h3>
Area = length × width
= 33 m × 2 m
= 66 square meter.
- A gallon of paint = 2.5 m²
Number of gallons of paint needed = 66 square meter / 2.5 m²
= 26.4 gallons
Learn more about area of rectangle:
brainly.com/question/13048427
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Answer:
0.0555555555555555555
<em>hope </em><em>it</em><em> helps</em>
The answer is -7 because :
a=1, b=1, c=2
Discriminant = b^2 - 4ac
= 1^2 - 4*1*2
= -7