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Brums [2.3K]
3 years ago
14

Name the side of the triangle that is opposite angle A * Captionless Image AB AC BC

Mathematics
1 answer:
Olenka [21]3 years ago
7 0

Answer:

BC

Step-by-step explanation:

because it is what it is

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In a series RL circuit, ET = 120 V, R = 40 Ω, and XL = 30 Ω. How much is EL?
dezoksy [38]

Firstly, we will draw

RL series circuit

ET = 120 V, R = 40 Ω, and XL = 30 Ω

Firstly, we will find current

I=\frac{E_T}{R+jX_L}

now, we can plug values

and we get

I=\frac{120}{40+j30}

now, we can find voltage across L

E_L=IjX_L

so, we get

E_L=\frac{120}{40+j30}(j30)

now, we can find absolute value

|E_L|=120\frac{30}{\sqrt{40^2+30^2}  }

|E_L|=120\frac{30}{ 50 }

|E_L|=120\frac{3}{ 5 }

|E_L|=72V...............Answer


7 0
2 years ago
Which equation of the solutions of x2 = -7x – 8
timama [110]

Answer:

x = 1, -5.56

Step-by-step explanation:

x^2 = -7x - 8

shift -7x and -8 to the other side . Remember when u shift minus changes into plus.

x^2 + 7x + 8 = 0

using quadratic equation formula

in quadratic equation one value comes positive and other comes in negative

a = 1  , b = 7 and c = 8

taking positive sign

x = (-b + \sqrt{b^2 - 4*a*c}) /2*a

x = (-7 + \sqrt{7^2 - 4*1*8} ) /2*1

x = (-7 + \sqrt{49 + 32} ) /2

x = (-7 + \sqrt{81} )/ 2

x = -7 + 9 / 2

x = 2/2

x = 1

taking negative sign

(-b - \sqrt{b^2 - 4*a*c} ) /2*a

x = (-7 - \sqrt{7^2 - 4*1*8} ) /2*1

x = (-7 - \sqrt{49 - 32} ) /2

x = -7 - \sqrt{17} / 2

x = -7 - 4.12 / 2

x = -11.12/2

x = -5.56

therefore x = 1 , - 5.56

4 0
2 years ago
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What's 16/34 in its lowest term?
nikklg [1K]
I think it is 8/17...
hope this helps!
5 0
3 years ago
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Write an expression using multiplication and addition with a sum of 16. (PLZ HELP!!!!)
Svetach [21]
Write an expression using multiplication and addition with a sum of 16:

2 x 6 +4
7 0
2 years ago
When shooting free throws, David is successful 7 out of every 10 shots.if he attempts 100 free throws ,about how many times will
ira [324]
100 free throws* (7 goals/ 10 free throws)= 70 goals.

If David attempts 100 free throws, he will be successful about 70 times~
7 0
3 years ago
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