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3 years ago

What is the value of x in the triangle?

Mathematics

1 answer:

Brrunno [24]3 years ago

8 0

Answer:

C) 7 $\sqrt{2}$

Step-by-step explanation:

in an isosceles triangle, the hypotenuse equals a leg multiplied by $\sqrt{2}$

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Can anyone help me pleassseeee!

Xelga [282]

Answer:

baba booey

Step-by-step explanation:

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3 years ago

so a son and dad went on a fishing trip and the got in to a car accident the dad died and the son needed surgery and the doctor

Kobotan [32]

Answer:

if the condition of the son is very critical

a surgeon will say NO

Because after a successful operation, the son will become like a vegetable

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It's a torture to the son for the rest of his life.

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4 years ago

Given: cosθ= -4/5 , sin x = -12/13 , θ is in the third quadrant, and x is in the fourth quadrant; evaluate tan 1/2 θ

mrs_skeptik [129]

Answer:

Step-by-step explanation:

If you're looking for what the half angle of the tangent of theta is, I'm a bit confused as to why you think the angle in the 4th quadrant, x, is relevant. But maybe you don't know it isn't and it's a "trick" to throw you off. Hmm...

Anyways, the half angle identity for tangent is

$tan(\frac{\theta}{2})=\frac{sin\theta}{1+cos\theta}$

There are actually 3 identities for the tangent of a half angle, but this one works just as well as either of the others do, so I'm going with this one.

If theta is in QIII, the value of -4 goes along the x axis and the hypotenuse is 5. That makes the missing side, by Pythagorean's Theorem, -3. Filling in our formula:

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{1+(-\frac{4}{5}) }$ which simplifies a bit to

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{\frac{5}{5} -\frac{4}{5} }$ and a bit more to

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{\frac{1}{5} }$

Bring up the lower fraction and flip it to divide to get

$tan(\frac{\theta}{2})=-\frac{3}{5}*\frac{5}{1}$ which of course simplifies to

-3. Choice A.

6 0

4 years ago

How do you answer this

Tju [1.3M]

109 degrees and the missing angle are supplementary angles, so they add up to 180 degrees.
180 - 109 = 71
The measurement of ULE can now be found since we now have 2 angles with their degrees. So we add those angles together...
71 + 49 = 120
Now we subtract that from 180 (all of the angles add up to 180 in a triangle) to get the m180 - 120 = 60

The m

7 0

3 years ago

If y is an nonnegative , would it be describing a inequality or interval notation?

Viefleur [7K]

Sorry this is not a answer but I have to use this as one due to the question asking.... whelp

3 0

3 years ago