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Juliette [100K]
2 years ago
12

Find the area of the regular polygon

Mathematics
1 answer:
Aleksandr-060686 [28]2 years ago
4 0

Answer:

a = 337.214 m2

Step-by-step explanation:

hope this helps

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Line DCE is parallel to line AB
krek1111 [17]

Answer:

Angle DCA = Angle CAB. (Alternate Interior Angle)

Angle DCA = 68°

Angles(DCA + ACB + BCE) = 180°. (Linear Pair)

Angle ACB + 68° + 33° = 180°

Angle ACB = 79°

Therefore,

Angle ABC = 33°. (Alternate Interior Angle)

4 0
3 years ago
Solve the formula for the variable 1. f = 1/2(r 6.5)
Elina [12.6K]
F = 1/2(r + 6.5)
2f = r + 6.5
r = 2f - 6.5
8 0
3 years ago
use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine cos^4
Firdavs [7]

The expression cos⁴ θ in terms of the first power of cosine is <u>[ 3 + 2cos 2θ + cos 4θ]/8.</u>

The power-reducing formula, for cosine, is,

cos² θ = (1/2)[1 + cos 2θ].

In the question, we are asked to use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine cos⁴ θ.

We can do it as follows:

cos⁴ θ

= (cos² θ)²

= {(1/2)[1 + cos 2θ]}²

= (1/4)[1 + cos 2θ]²

= (1/4)(1 + 2cos 2θ + cos² 2θ] {Using (a + b)² = a² + 2ab + b²}

= 1/4 + (1/2)cos 2θ + (1/4)(cos ² 2θ)

= 1/4 + (1/2)cos 2θ + (1/4)(1/2)[1 + cos 4θ]

= 1/4 + cos 2θ/4 + 1/8 + cos 4θ/8

= 3/8 + cos 2θ/4 + cos 4θ/8

= [ 3 + 2cos 2θ + cos 4θ]/8.

Thus, the expression cos⁴ θ in terms of the first power of cosine is <u>[ 3 + 2cos 2θ + cos 4θ]/8</u>.

Learn more about reducing trigonometric powers at

brainly.com/question/15202536

#SPJ4

5 0
2 years ago
Solve the equation for all real solutions in simplest form.<br> 4y² - 5y-3 = 0
zheka24 [161]

Answer:

y = 5 - \sqrt{x}73/8 = -0.443 or y = 5 + \sqrt{x}73/8 = 1.693

Step-by-step explanation:

step 1: Equation

step 2: Trying to factor by splitting the middle term

8 0
3 years ago
Please answer fast it will be very helpfull please it is a humble requst A samosa costs Rs 5 and a cold drink costs Rs 10. You t
OLEGan [10]
The first answer is 40 second 65 third 56 and then fourth 90
5 0
2 years ago
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