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2 years ago

7

This exercise involves the formula for the area of a circular sector. Find the area of a sector with central angle 4π/6 rad in a

circle of radius 8 m. (Round your answer to one decimal places. Find the radius of the circle.

1 answer:

andre [41]2 years ago

8 0

Step-by-step explanation:

Below is an attachment containing the solution.

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Solve 2x^2+x-4=0<br> X^2+_×+_=0

natima [27]

Answer:

Hopes it helps

Step-by-step explanation:

The Quadratic Polynomial is

2 x² +x -4=0

Using the Determinant method to find the roots of this equation

For, the Quadratic equation , ax²+ b x+c=0

(b) x²+x=0

x × (x+1)=0

x=0 ∧ x+1=0

x=0 ∧ x= -1

You can look the problem in other way

the two Quadratic polynomials are

2 x²+x-4=0, ∧ x²+x=0

x²= -x

So, 2 x²+x-4=0,

→ -2 x+x-4=0

→ -x -4=0

→x= -4

∨

x² +x² +x-4=0

x²+0-4=0→→x²+x=0

→x²=4

x=√4

x=2 ∧ x=-2

As, you will put these values into the equation, you will find that these values does not satisfy both the equations.

So, there is no solution.

You can solve these two equation graphically also.

3 0

2 years ago

6= 24-6a what is a.......................

AnnyKZ [126]

Answer:

3

Step-by-step explanation:

6=24-6a

6a=24-6

6a^6=18^6

a=3

3 0

3 years ago

Read 2 more answers

Can you pleaseee help meee

Mrac [35]

Yesssssssss, with what though

6 0

2 years ago

Miguel lives in a state where sales tax is 4%. This means you can find the total cost of an item, including tax, by using the ex

mr Goodwill [35]

Answer:$29.12

c+0.04c (which can also be written as 1.04c, as they are like terms)

(28)+0.04 x (28)
28 + 1.12
=$29.12

5 0

2 years ago

An airplane pilot can see the top of a traffic control tower at a 20 degree angle of depression. the airplane is 5,000 feet away

daser333 [38]

The given question describes a right triangle with with one of the angles as 20 degrees and the side adjacent to the angle 20 degrees is of length 5,000 feet. We are looking for the length of the side opposite the angle 20 degrees.

Let the required length be x, then

$\tan{20^o}=\cfrac{opp}{hyp}=\cfrac{x}{5,000}\\ \\ \Rightarrow x=5,000\tan{20^o}=1,819.85$

Therefore, the height of the airplane above the tower is 1,819.85 feet.

8 0

3 years ago

Read 2 more answers