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garri49 [273]
3 years ago
9

Please help me this is a post test!

Mathematics
1 answer:
schepotkina [342]3 years ago
4 0

Answer:

I cant see, Camera quaily is bad.

Step-by-step explanation:

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A student begins a proof of the law of cosines. His work is shown.
Phoenix [80]

The student made an error in <u>step 3</u>. To correct this error, he should define <u>side AY</u> in terms of <u>angle X</u>. <u>Pythagorean theorem</u> relates sides x, y, z, and <u>angle X</u>

<h3>The law of cosine.</h3>

In Trigonometry, law of cosine (cos) is given by this mathematical expression:

cosθ = Opp/Hyp

<u>Where:</u>

  • Opp is the opposite side of a right-angled triangle.
  • Hyp is the hypotenuse of a right-angled triangle.
  • θ is the angle.

In this scenario, we can logically deduce that the student made an error in <u>step 3</u>. To correct this error, he should define <u>side AY</u> in terms of <u>angle X</u>.

After correcting this error, the student can use the <u>Pythagorean theorem</u> to relate sides x, y, z, and <u>angle X</u>.

Read more on law of cosine here: brainly.com/question/27613782

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2 years ago
suppose you buy 158,000 home. you found out the bank offers 30 year loan at 6.5% APR. What will he your monthly payment
serg [7]

Answer: $998.67

Step-by-step explanation:

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This does not include taxes, insurance, or PMI

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Answer:

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Step-by-step explanation:

You want factors of 2 that sum to -3. The positive sign on +2 tells you they both need to have the same sign. The only two negative integer factors of 2 do that.

  2 = (-1)(-2) . . . . (-1) + (-2) = -3

Hence these are the numbers (-1, -2) that go in the binomial factors.

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3 years ago
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