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AleksAgata [21]
3 years ago
11

PLEASE HELP!!! TRIG, Theres a picture!!

Mathematics
1 answer:
BartSMP [9]3 years ago
3 0

Answer:

<h2>The answer is option C</h2>

Step-by-step explanation:

3(  { \tan }^{2} \theta -    { \sec }^{2}  \theta)

Using trigonometric identities

That's

1 + { \tan }^{2} \theta  =   { \sec }^{2}  \theta

Rewrite the expression

That's

3({ \tan }^{2} \theta - (1 + { \tan }^{2} \theta)) \\

Simplify

We have

3({ \tan }^{2} \theta - 1 - { \tan }^{2} \theta) \\ 3({ \tan }^{2} \theta - { \tan }^{2} \theta - 1)

So we have

3( - 1)

We have the final answer as

<h2>- 3</h2>

Hope this helps you

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The mean of Holly's first six math quiz scores was 75%. After taking the seventh quiz, her mean score rose to 77%. What was Holl
alexandr1967 [171]

Let x represent Holly's score on 7th math quiz.

We have been given that the mean of Holly's first six math quiz scores was 75%. This means that the average on 1st 6 math quizzes is 75.

To find the total scores on 1st 6 math quizzes, we will multiply 75 by 6 that is 75\times 6 =450.

We will use average formula to find test scores on 7th math quiz.

\text{Average of 7 math quizzes}=\frac{\text{Sum of scores on 7 math quizzes}}{\text{7 quizzes}}

77=\frac{x+450}{7}

Let us solve for x.

77\cdot 7=\frac{x+450}{7}\cdot 7

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x+450=539

x+450-450=539-450

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14)

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m∠X + m∠Y < 90° is true.

<h3>How to solve it?</h3>

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We have to find the option that is true about △XYZ.

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Step-by-step explanation:

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