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podryga [215]
3 years ago
15

Find the area of the green sector if ∠ A = 45° and the circle has a radius of 10 inches.

Mathematics
2 answers:
Travka [436]3 years ago
5 0
The answer to this is (D)
Furkat [3]3 years ago
3 0

Answer:

D) 25π/2 in²

Step-by-step explanation:

The area of a sector of central angle θ and radius r is ...

... A = (1/2)r²θ

Your sector has central angle π/4 and radius 10 in, so has area ...

... A = (1/2)(10 in)²(π/4)

... A = 25π/2 in² . . . . matches selection D

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anygoal [31]

The last one , because I will now solve it for you and prove therefore.

x²–4x+5=0;

D=(–4)²–4•5=16–20= –4= (2i)².

So:

x1= (4–2i)/2= 2–i

x2= (4+2i)2= 2+i.

This is the whole answer....

Three other u will solve by yourself and have roots which will not be suitable.

6 0
3 years ago
I need a little more help ok
Elenna [48]

Answer:

84+(x+9)=180

Step-by-step explanation:

84º+(x+9)º = 180º, so x+93 = 180, so x=87. Hope this helps!

6 0
2 years ago
What is the value of x?<br> х<br> X-6<br> 5<br> 3<br> A. 3<br> B. 9<br> C. 15<br> D. 30
Tatiana [17]

Answer: C. 15

Step-by-step explanation:

4 0
2 years ago
given the functions f(x) = 3x2, g(x) = x2 − 4x + 5, and h(x) = –2x2 + 4x + 1, rank them from least to greatest based on their ax
Arturiano [62]
 The answer is <span>f(x), g(x), h(x) 
(well, that's my opinion)
 :) I hope this helped u  :)</span>
8 0
3 years ago
A sinusoidal function whose period is 4π, maximum value is 6, and minimum value is -2 has a y intercept of 6. What is the equati
IRINA_888 [86]

Equation of the function: f(x) = 4 sin (x/2) + 6.

<h3>What is sinusoidal function ?</h3>

The term sinusoidal is used to describe a curve, referred to as a sine wave or a sinusoid, that exhibits smooth, periodic oscillation. It is named based on the function y=sin(x).

Given: max value= 6, min value= -2, y-intercept= 6.

As, standard form f(x) = A sin (ωx +φ) + k,

where A is the amplitude, ω is the angular velocity with ω=2πf.

Now,

A = |6- (-2)/2|

A = |6 +2/2| = 8/2

A = 4

Also, ω:

The period of a sinusoidal is T = 1/f

so, f = 1 / T

ω = 2πf

ω = 2π ( 1/T) with T = 4π

ω = 2π (1/(4π) = 2π (2)

ω = 1/2

The y-intercept k = 6

So, equation with values A =4, ω = 1/2, k = 6, φ = 0.

f(x) = A f(x)

f(x) = A sin (ωx +φ) + k

f(x) = 4 sin (x/2) + 6.

Hence, equation of the function f(x) = 4 sin (x/2) + 6.

Learn more about this concept here:

brainly.com/question/26315885

#SPJ1

4 0
2 years ago
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