Answer:
- 4x + 36
Step-by-step explanation:
(
- 6)² = ( - 6)( - 6)
Each term in the second factor is multiplied by each term in the firs t factor, that is
( - 6) - 6( - 6)
Distribute both parenthesis
= - 2x - 2x + 36 ← collect like terms
= - 4x + 36
Answer: the area of the triangle is 23.4 cm²
Step-by-step explanation:
The given triangle is not a right angle triangle. Since two sides and one angle are known, we can either apply the Heron's formula or the Sine formula which is expressed as
Area of triangle = 1/2abSinC
Where a and b are the sides of the triangle and C is the given angle. Therefore,
Area = 1/2 × 8.2 × 6.4 × Sin63
Area = 1/2 × 8.2 × 6.4 × 0.8910
Area = 23.4 cm² to the nearest tenth.
Answer:
12
Step-by-step explanation:
Area = length * width
length = area ÷ width
(sinx + cosx)^2/((sinx)(cosx)) = 2 + (secx)(cscx)
<span>(sinx + cosx)^2/((sinx)(cosx)) = 2 + 1/(sinxcosx); subtract 1/sinxcosx both sides </span>
<span>(sinx + cosx)^2/((sinx)(cosx)) - 1/(sinxcosx)= 2; multiply through by sinxcosx </span>
<span>(sinx + cosx)^2 -1 = 2(sinxcosx) </span>
<span>sin^2 + 2sinxcosx + cos^2 - 1 = 2(sinxcosx); since sin^x + cos^2x = 1 </span>
<span>1 + 2sinxcosx -1 = 2sinxcosx </span>
<span>2sinxcosx = 2sinxcosx</span>
It would be: 10.78 /19.6 * 100 = 1078/19.6 = 55%
So, your final answer is 55%
Hope it helped.
