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3 years ago

Can anyone help!!!!!!!! first to answer gets brainlyest!

Mathematics

2 answers:

Kipish [7]3 years ago

8 0

Answer:

- 1.48

Step-by-step explanation:

1st you have to subtract up everything you know about the numbers

next you insted of putting in all those +s you should really put - instead that prolly the reason you got all confused so the real answer is

-1.48

stiks02 [169]3 years ago

3 0

Answer:

13.48 ?

Step-by-step explanation:

he don't get enough allowance lol I'm not sure!:(

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Can you please help me with this all I'm asking is just help for one question .

shutvik [7]

The value of “u” is 32°.

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3 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

Independence and Exclusiveness are two topics which are important to probability and often confused. Discuss the difference betw

Pavlova-9 [17]

Answer:

Independent means that one has no effect on the other. Exclusive means one cannot happen alongside the other. In simpler terms, independent events can be thought of as the chance it'll rain and how many people are flossing their teeth in the morning. Both happen, but neither one impacts the other.

Exclusive, on the other hand, means only one can happen. Lets say at nine in the evening your favorite show is on. However, you have an early morning and should be asleep by nine. You cannot both be asleep and watching your favorite show, and so these events are exclusive.

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3 years ago

Jskawlowlekdkckfkdkdkdkkfkfkfkfkfkr

ICE Princess25 [194]

Use photo math it works very well!

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4 years ago

Dana buys dress shirts from a clothing manufacturer for s dollars each, and then sells the dress shirts in her retail clothing s

lesantik [10]

Answer:

$11.20

Step-by-step explanation:

Another Answer is futile

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3 years ago