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aleksandrvk [35]
3 years ago
14

Find the measurement of angle A

Mathematics
1 answer:
yaroslaw [1]3 years ago
6 0

Answer:

The value of A is 20

Step-by-step explanation:

To find the answer, note that all triangles have a interior degree measurement of 180. Set the sum of the angles equal to 180.

71x - 1 + 20x + 90 = 180

91x + 89 = 180

91x = 91

x = 1

Now we can use this in the A angle to find the value.

A = 20x

A = 20(1)

A = 20

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Step-by-step explanation:

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3 years ago
T=mv^2/L<br><br> Write an equation that shows the given formula solved for V
Effectus [21]

Answer:

<u>v = √(LT/m)</u>

Step-by-step explanation:

Given :

  • T = mv²/L

Multiply both sides with L :

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Divide both sides by m :

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Take the square root on each side :

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BaLLatris [955]
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3 years ago
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Please help me solve this for 15 points! <br><br>-x2 + 4x - 54 = 0​
Mazyrski [523]

Answer:

x1 =2-5i*sqrt(2)

x2 =2+5i*sqrt(2)

Step-by-step explanation:

-x^2 +4x-54=0 (quadratic equation)

a=-1, b=4, c=-54

x1=(-b+sqrt(b^2-4ac))/2a

x1=(-4+sqrt(4^2 - 4*(-1)(-54))/2*(-1)

x1=(-4+sqrt(16-216))/(-2)

x1 =(-4+sqrt(-200))/(-2)

x1 =(-4+sqrt(200i^2))/(-2) i^2=-1

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x1 =(-4+10i*sqrt(2))/(-2)

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x2 =(-4-10i*sqrt(2))/(-2)

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7 0
4 years ago
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Anna35 [415]
The unit normal for the given plane is <5,2,-1>.
The equation of the plane parallel to the given plane passing through (5,5,4) is therefore
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7 0
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