3 years ago

Need help please !!!

Mathematics

1 answer:

ehidna [41]3 years ago

5 0

Using SOH CAH TOA

Sin =opposite/hypotenuse

that means opposite=2

Hypotenuse=3

Cos=Adjacent/Hypotenuse

Using Pythagorean theorem

Hyp^2=Opp^2 +Adj^2

3^2 =2^2+adj^2

9=4+adj^2

9-4=adj^2

5=adj^2

Taking the square root of both sides

√5=adj

:: cos=√5/3

You might be interested in

63 first-year teachers and 27 experienced teachers attended a school staff meeting. What percentage of the teachers in the meeti

nexus9112 [7]

Answer: 70%

Step-by-step explanation:

Step 1:

Total number of teachers = 63 + 27

= 90

Step 2:

The percentage of the teachers in the meeting were first-year teachers:

(63 ÷ 90) × 100 = 70%

4 0

3 years ago

Suppose that g(x)=f(x)+3. Which statement best compares the graph of g(x) with the graph of f(x)?

Nonamiya [84]

Answer:

He said points

Step-by-step explanation:

I can get points for nothing

8 0

3 years ago

If you draw two cards from the deck at the same time, what is the probability that they will both be hearts?

koban [17]

Answer:

The probability is 1/17.

Step-by-step explanation:

The total number of ways in which 2 cards can be selected from a pack of 52 cards is $\binom{52}{2}$

The total number of combinations of 2 cards with hearts equals $\binom{13}{2}$

Thus the probability of the event that both the cards have hearts becomes

$P(E)=\frac{\binom{13}{2}}{\binom{52}{2}}=\frac{1}{17}$

4 0

3 years ago

A dentist wants to find out how often her patients floss their teeth. Which samples are biased? Check all that apply.

professor190 [17]

Answer:

Answers 2,3, and 4 are all biased.

Step-by-step explanation:

She has to check ALL her patients to be unbiased. Otherwise she is showing favoritism and bias.

5 0

2 years ago

Read 2 more answers

Which ordered pair is a solution to the inequality 7x-3y>10

dusya [7]

Answer:

first one

Step-by-step explanation:

5 0

3 years ago