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3 years ago

15

MAY YOU PLZ HELP ME!!!! WILL MARK BRAINLIEST!!!!

1 answer:

vfiekz [6]3 years ago

4 0

Answer:

1.Point form: (5,10) or Equation form: x = 5 , y = 10

2.Point form:(2,0-) or Equation form: x= 2, y=0

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Hopes this helps!

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<img src="https://tex.z-dn.net/?f=%20%7B%20%5Ccos%5E%7B4%7D%5Calpha%7D%20%5C%3A%20%2B%20%20%20%5Csin%5E%7B2%7D%20%5Calpha%20%5C%

timurjin [86]

Answer:

Proved

Step-by-step explanation:

$cos^4\alpha +sin^4\alpha =\frac{1}{4}(3+cos4\alpha )\\\\$

Take the Left Hand Side:

$cos^4\alpha +sin^4\alpha\\\\(cos^2\alpha )^2+(sin^2\alpha )^2\\\\(\frac{1+cos2\alpha }{2})^2+(\frac{1-cos2\alpha }{2})^2 \\\\\frac{1+2cos2\alpha +cos^22\alpha }{4}+\frac{1-2cos2\alpha +cos^22\alpha }{4} \\\\$

$\frac{1+2cos2\alpha +cos^22\alpha +1-2cos2\alpha +cos^22\alpha }{4} \\\\\frac{2+2cos^22\alpha }{4} \\\\\frac{1+cos^22\alpha }{2} \\\\\frac{1}{2}(1+cos^22\alpha )\\\\$

$\frac{1}{2}(1+\frac{1+cos4\alpha }{2})$

$\frac{1}{2}(\frac{2+1+cos4\alpha }{2})\\\\\frac{1}{4}(3+cos4\alpha )\\\\$

Hence Proved!

The following identities were used are attached in an image

3 0

3 years ago

Name the triangle congruence postulate that proves the triangles below are congruent.

Olenka [21]

I think it’s ASA. Hope this helps

6 0

4 years ago

Read 2 more answers

11.) Write the equation of the line that

Anna35 [415]

Answer:

y-2=2/3(x+1) OR y=2/3x+8/3

Step-by-step explanation:

y=2/3x-2 (2/3 represents your slope)

plug into this equation y-y1=m(x-x1) (m represents your slope, y1 and x1 are you points)

so y-2=2/3(x+1) OR y=2/3x+8/3 (move the -2 over, distribute the 2/3 to (x+1) and then add 2/3 to the 2 you moved over)

4 0

3 years ago

A certain car has a fuel efficiency of 55 miles per gallon when travelling at 70 miles per hour. How many miles will the car tra

pishuonlain [190]

Oh seems nice yeah? Yeah it does mate

6 0

3 years ago

An automobile insurance company is in the process of reviewing its policies. The company is considering increasing the premium c

tekilochka [14]

Answer:

do that work boy, stop using the internet and use your brain

5 0

3 years ago