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Orlov [11]
2 years ago
5

I would really appreciate the help! 15 points!

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
4 0
The slope would be 1/17 and then you would use that slope and plug it into the y=mx+b and solve for b
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Whats this problem i need help
Eva8 [605]

Answer:

perimeter of triangle=sum of all sides

perimeter of triangle = 3/10ft + 3/10ft + 1/10ft

perimeter of triangle =7/10ft

6 0
2 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
3 years ago
PLEASSSE help will give brainliest
joja [24]

Answer:

c

Step-by-step explanation:

you divide each side by four to get a=2.5 b=2.5 and c=3

4 0
2 years ago
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Question 6 of 25<br> What is sin 45°?
guajiro [1.7K]

Answer:

B.

\frac{1}{ \sqrt{2} }

3 0
2 years ago
Plzzzz help me asap WILL GIVE BRAINLIEST
Brrunno [24]
The answer will be d i believe
8 0
3 years ago
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