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ExtremeBDS [4]
2 years ago
7

What is the length of AB ? Round to the nearest tenth.

Mathematics
2 answers:
Vinvika [58]2 years ago
8 0
The only way you can find x here is to use a trig ratio.  We have the reference angle of 75, CA is 10 which is the side adjacent to the reference angle, and we are looking for the hypotenuse.  The ratio that relates the side adjacent to a reference angle to the hypotenuse is cosine.  Therefore, cos(75)= \frac{10}{x}.  Solving for x we get x= \frac{10}{cos(75)}.  Do that on your calculator and find that the hypotenuse is 38.6 m long, last choice from above.
vfiekz [6]2 years ago
7 0

Answer:

d.

Step-by-step explanation:

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Which equation has the same solution as this equation?
lesya [120]

Answer:

3rd Option is correct.

Step-by-step explanation:

Given Equation:

x² - 16x + 12 = 0

First We need to find solution of the given equation.

x² - 16x + 12 = 0

here, a = 1   , b = -16  &  c = 12

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-(-16)\pm\sqrt{(-16)^2-4(12)}}{2}

x=\frac{16\pm\sqrt{256-48}}{2}

x=\frac{16\pm\sqrt{208}}{2}

x=\frac{16\pm4\sqrt{13}}{2}

x=8+2\sqrt{13}\:\:andx=8-2\sqrt{13}

Now,

Option 1).

( x - 8 )² = 144

x - 8 = ±√144

x - 8 = ±12

x = 8 + 12 = 20   and x = 8 - 12 = -4

Thus, This is not correct Option.

Option 2).

( x - 4 )² = 4

x - 4 = ±√4

x - 4 = ±2

x = 4 + 2 = 6   and x = 4 - 2 = 2

Thus, This is not correct Option.

Option 3).

( x - 8 )² = 52

x - 8 = ±√52

x - 8 = ±2√13

x  = 8 + 2√13   and x = 8 - 2√13

Thus, This is correct Option.

Option 4).

( x - 4 )² = 16

x - 4 = ±√116

x - 4 = ±4

x = 4 + 4 = 8  and x = 4 - 4 = 0

Thus, This is not correct Option.

Therefore, 3rd Option is correct.

8 0
3 years ago
Suppose that during it's flight, the elevation `e` (in feet) of a certain airplane and its time `t,` in minutes since takeoff, a
kifflom [539]

Answer:

Suppose that during its flight, the elevation e (in feet) of a certain airplane and its time ... since takeoff, are related by a linear equation. Consider the graph of this equation, with time represented on the horizontal axis and elevation on the vertical axis. ... Unit 3; Linear Relationships Lesson 9: Slopes Don't Have to be Positive.

Step-by-step explanation:

8 0
2 years ago
2x + y + z when x= -2 and y=3 z=5
ruslelena [56]

Answer:4

Step-by-step explanation:2x+y+z=2(-2)+3+5=(-4)+3+5=(-1)+5=4

6 0
3 years ago
Read 2 more answers
Write an algebraic expression for the pharse: 5 less than the product of 6 and n
kiruha [24]

6n - 5 is the answer

<h2>YOURE WELCOME, PLEASE MARK AS BRAINLIEST AND FOLLOW ME ❤️❤️</h2>
7 0
2 years ago
Read 2 more answers
BehaviorIsm qq oakqlqlwlskq
vagabundo [1.1K]
What the heck do you mean??????????
6 0
3 years ago
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