SOLVE PROBLEM HELP! EXPLAIN

Mathematics

1 answer:

tresset_1 [31]3 years ago

8 0

Answer:

x ≈ 0.71122607

Step-by-step explanation:

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5x^2 +3 = -122 a. no solution b. -5 c. +‐5 d. +- 25

Finger [1]

Answer:

I put it in the calc and it got

x=5i,−5i

6 0

3 years ago

Read 2 more answers

How do you this question (pre-cal)

Novay_Z [31]

The goal to proving identities is to transform one side into the other. We can only pick one side to transform while the other side stays the same the entire time. The general rule of thumb is to transform the more complicated side (though there may be exceptions to this guideline).

So I'll take the left hand side and try to turn it into $\csc^2( B )$

One way we can do that is through the following steps:

$\frac{\tan(B) + \cot(B)}{\tan(B)} = \csc^2(B)\\\\\frac{\tan(B)}{\tan(B)} + \frac{\cot(B)}{\tan(B)} = \csc^2(B)\\\\1 + \cot(B)*\frac{1}{\tan(B)} = \csc^2(B)\\\\1 + \cot(B)*\cot(B) = \csc^2(B)\\\\1 + \cot^2(B) = \csc^2(B)\\\\1 + \frac{cos^2(B)}{\sin^2(B)} = \csc^2(B)\\\\\frac{sin^2(B)}{\sin^2(B)}+\frac{cos^2(B)}{\sin^2(B)} = \csc^2(B)\\\\\frac{sin^2(B)+cos^2(B)}{\sin^2(B)} = \csc^2(B)\\\\\frac{1}{\sin^2(B)} = \csc^2(B)\\\\\csc^2(B)=\csc^2(B) \ \ {\Large \checkmark}\\\\$

Since we've shown that the left hand side transforms into the right hand side, this verifies the equation is an identity.

4 0

3 years ago

The sum of two polynomials is –yz? - 322 – 4y + 4. If one of the polynomials is y - 4yz? -3, what is the other

ziro4ka [17]

The last option because it’s the one that makes that will get you the sum need when added with the other polynomial

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4 years ago

16. [-12 Points]

Cerrena [4.2K]

Answer:

Answer: A. 5:4 Step-by-step explanation: Since the question mentions twelfths of a pie, it is easier to say each pie has 12 pieces or 36 total pieces ordered from the 3 pies. Ty ate 5 and Rob ate 15 which is 3 times more than Ty. A total of 20 pieces have been eaten from the 36 you started with. Eaten = 16. So the ratio is 20:16 which is simplified to = 20 and Remaining 5:4.

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The perimeter of a basketball court is 84 meters and the length is 6 meters longer than twice the width. what are the length and

Colt1911 [192]

The length is 30 meters and the width is 12 meters.

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3 years ago