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2 years ago

Pythagorean Theorem please help

Mathematics

2 answers:

I am Lyosha [343]2 years ago

7 0

2^2+b^2=12^2
4+b^2=144
144-4=140
√140 = √b
11.83 = b

kiruha [24]2 years ago

5 0

The distance between the points is the hypotenuse (c). One of the lengths is a and the other is b (it doesn't matter which). Count the number of square for the two sides, square each number, add them then square root them. That is c.

For the 1st one:
6^2 + 8^2 =c^2
36 + 64 = c^2
100 = c^2
10 = c

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Is (2, 6) a solution to this system of equations?<br> y = -x + 8<br> y = 5x - 4<br> yes<br> no

Alexxx [7]

Answer:

Yes

Step-by-step explanation:

To see is (2, 6) is a system, we can plug it into the system to check if it gives us true statements:

6 = -2+8

6 = 6

6 = 5(2)-4

6 = 10-4

6 = 6

Both of the equations are true, therefore (2, 6) is a solution to this system.

6 0

1 year ago

What is 18-0.9 if you know answer pls lol

Harlamova29_29 [7]

Answer:

17.1

Step-by-step explanation:

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2 years ago

1 3 Which is the best estimate of 11. 113 2 4? O 4 O 6 o 22 O 33

JulsSmile [24]

Answer:22

Step-by-step explanation:

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2 years ago

Find real numbers a, b, and c so that the graph of the function y equals ax squared plus bx plus c contains the points left par

andrezito [222]

Answer:

ax 2+bx+c,where a≠0

Step-by-step explanation:

5 0

2 years ago

Algebra 2: PLEASE HELP ME!!

vfiekz [6]

Looks more like Trig than Algebra II

They want us to apply the sum angle formula to $\sin(x + \frac{5 \pi}{6})$

5π/6 is 150°; I find it easier to think in degrees.

When the tangent of x is 3/4 that's a right triangle with opposite 3, adjacent 4 so hypotenuse 5. So a sine of 3/5 and a cosine of 4/5, both positive because we're told x is in the first quadrant.

The sine sum angle formula is

$\sin(a+b) = \sin a \cos b + \cos a \sin b$

$\sin(x+\frac{5\pi}{6}) = \sin x \cos \frac{5\pi}{6} + \cos x \sin \frac{5\pi}{6}$

We know sin 150° = sin 30° = 1/2 and cos 150° = - cos 30° = -√3/2

$\sin(x+\frac{5\pi}{6}) = \frac 3 5 (- \sqrt{3}/2) + \frac 4 5 (1/2)$

$\sin(x+\frac{5\pi}{6}) = \dfrac{ 4- 3\sqrt{3}}{10}$

Third choice

3 0

3 years ago