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valentinak56 [21]
2 years ago
15

Please help I’m failing all of classes please please please

Mathematics
2 answers:
arsen [322]2 years ago
4 0

Answer:

x=39 y=51

Step-by-step explanation:

Leto [7]2 years ago
4 0

Step-by-step explanation:

2x = 78 ( they're vertical angles)

divide both sides by 2

x = 39 degrees( I don't if that's correct as I did it in my head so double check) hope this helps!!! MARK BRAINLIEST IF YOU GET IT RIGHT PLEASE!!

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Please please help please!!
netineya [11]

Answer:

The vertex is at (-2,-8)

Step-by-step explanation:

You go left 2, and down 8, and then it's a scale of 1

4 0
3 years ago
Rewrite in simplest terms: 2(-4p-6)-5p2(−4p−6)−5p
irina1246 [14]

Answer: 20p³+30p²-13p-12

Step-by-step explanation:

2(-4p-6)-5p²(-4p-6)-5p

-8p-12+20p³+30p²-5p

20p³+30p²-13p-12

please click thanks and mark brainliest if you like :)

3 0
3 years ago
Read 2 more answers
An electric current, I, in amps, is given by I=cos(wt)+√8sin(wt), where w≠0 is a constant. What are the maximum and minimum valu
exis [7]
Take the derivative with respect to t
- w \sin(wt) + \sqrt{8} w cos(wt)
the maximum and minimum values occur when the tangent line is zero so we set the derivative to zero
0 = -w \sin(wt) + \sqrt{8} w cos(wt)
divide by w
0 =- \sin(wt) + \sqrt{8} cos(wt)
we add sin(wt) to both sides

\sin(wt)= \sqrt{8} cos(wt)
divide both sides by cos(wt)
\frac{sin(wt)}{cos(wt)}= \sqrt{8}   \\  \\ arctan(tan(wt))=arctan( \sqrt{8} ) \\  \\ wt=arctan(2 \sqrt{2)} OR\\ wt=arctan( { \frac{1}{ \sqrt{2} } )
(wt)=2(n*pi-arctan(2^0.5))
(wt)=2(n*pi+arctan(2^-0.5))
where n is an integer
the absolute max and min will be

I=cos(2n \pi -2arctan( \sqrt{2} ))
since 2npi is just the period of cos
cos(2arctan( \sqrt{2} ))= \frac{-1}{3} 

substituting our second soultion we get
I=cos(2n \pi +2arctan( \frac{1}{ \sqrt{2} } ))
since 2npi is the period
I=cos(2arctan( \frac{1}{ \sqrt{2}} ))= \frac{1}{3}
so the maximum value =\frac{1}{3}
minimum value =- \frac{1}{3}


4 0
3 years ago
A number cube with six sides numbered 1 through 6 is rolled. the probability of rolling a 5 is 16 . what is the probability of n
egoroff_w [7]
1/6 hope this helps you give a brainliest please thank you.
6 0
3 years ago
What is longer 180 seconds or 3 minutes
Neporo4naja [7]
They are both the same. There are 60 seconds in one minute, so 60*3 is 180. Since 180=180, they are equal.

:)
6 0
3 years ago
Read 2 more answers
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