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alekssr [168]
3 years ago
7

TRUE OR FALSE: 7x - 9 = (7x - 1)(9)

Mathematics
1 answer:
IRISSAK [1]3 years ago
5 0
I believe it’s true, sorry if not
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Of the following statements, which one or ones describe actions helpful to your credit score?
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It is C because paying off debts means you lose debts and having long- standing lines of credit means that you have a good long history of credit.
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Fill in the blank. In the triangle below, zº =
lianna [129]

Answer:

38^{\circ}

Step-by-step explanation:

In a given triangle, the sum of every angle is always 180^{\circ}. Here, we are given a right angle (90^{\circ}), as well as another 52^{\circ} angle. Simply subtracting from 180 will give us the answer.

z^{\circ}=180^{\circ}-90^{\circ}-52^{\circ} \\z^{\circ}=90^{\circ}-52^{\circ} \\z^{\circ}=38^{\circ}

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Emma spent $38.22 on 3 dozen bagels and a gallon of iced tea. The price of the gallon of iced tea was $5.25. The following equat
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3 years ago
Tim scored 35, 38, and 36 points on three tests. How many points should he get on the fourth test to get an average score of 40?
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4 years ago
Which of the following are identities? Check all that apply
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Answer:

A, C

Step-by-step explanation:

Actually, those questions require us to develop those equations to derive into trigonometrical equations so that we can unveil them or not. Doing it only two alternatives, the other ones will not result in Trigonometrical Identities.

Examining

A) True

\frac{1-tan^{2}x}{2tanx} =\frac{1}{tan2x} \\ \frac{1-tan^{2}x}{2tanx} =\frac{1}{\frac{2tanx}{1-tan^{2}x}}\\ tan2x=\frac{1-tan^{2}x}{2tanx}

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B) False,

No further development towards a Trig Identity

C) True

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sin(8x)=2sin(4x)cos(4x)\\2sin(4x)cos(4x)=2sin(4x)cos(4x)

D) False No further development towards a Trig Identity

[sin(x)-cos(x)]^{2} =1+sin(2x)\\ sin^{2} (x)-2sin(x)cos(x)+cos^{2}x=1+2sinxcosx\\ \\sin^{2} (x)+cos^{2}x=1+4sin(x)cos(x)

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