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3 years ago

What are the basics for triganometrey

Mathematics

1 answer:

zheka24 [161]3 years ago

4 0

Whiteboard full of trigonometric facts that you need to know...

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Solve for x<br> 29=4x-11

Gemiola [76]

The correct answer for this would be X=10

3 0

3 years ago

Read 2 more answers

Please help!! WILL MARK BRAINLIEST

d1i1m1o1n [39]

Answer:

a= 2/5

b= 30

c= 18

d= 3:2

e= No, because the fraction or ratio is the same, all you need to do is simplify it!

5 0

3 years ago

Answer below please i need it immediately

DIA [1.3K]

Answer:

sss

Step-by-step explanation:

i think because 3 sides are given

3 0

3 years ago

1) Given P(A) = 0.3 and P(B) = 0.5, do the following.

Delicious77 [7]

Answer:

1) a) 0.8

b) 0.6

2) a) 0.08

b) 0.14

Step-by-step explanation:

1) Given

$P(A) = 0.3$ and $P(B) = 0.5$

Let us learn about a formula:

$P(A\ or\ B) = P(A) +P(B) -P(A\ and\ B)\\OR\\P(A\cup B) = P(A) +P(B) -P(A\cap B)$

(a) If A and B are mutually exclusive i.e. no common thing in the two events.

In other words:

$P(A\ and\ B)$ = $P(A \cap B)$ = 0

Using above formula:

$P(A\ or\ B) = P(A) +P(B) -P(A\ and\ B)\\\Rightarrow P(A\ or\ B) = 0.3 + 0.5 -0 = \bold{0.8}$

(b) P(A and B) = 0.2

Using above formula:

$P(A\ or\ B) = P(A) +P(B) -P(A\ and\ B)\\\Rightarrow P(A\ or\ B) = 0.3 + 0.5 -0.2 = \bold{0.6}$

*************************************

1) Given

$P(A) = 0.4$ and $P(B) = 0.2$

Let us learn about a formula:

$P(A\ and\ B) = P(B) \times P(A/B)$ for dependent events

$P(A\ and\ B) = P(A) \times P(B)$ for independent events.

(a) If A and B are independent events :

Using the above formula for independent events:

$P(A\ and\ B) = 0.4 \times 0.2 = \bold{0.08}$

(b) $P(A / B) = 0.7$

Using above formula:

$P(A\ and\ B) = P(B) \times P(A/B) = 0.2 \times 0.7 = \bold{0.14}$

6 0

3 years ago

5. A newspaper in New York took a random sample of 500 registered voters from New York City and found that 300 favored a certain

RUDIKE [14]

Answer:

Step-by-step explanation:

In first voting 300 person favors the candidate out of 500

i.e. $\frac{300}{500}=0.6$

60 % Population favor the candidate

For second voting 550 person favors the candidate out of 1000 candidates

i.e. $\frac{550}{1000}=0.55$

55 % Population favors candidate

so according to voting, 1 st voting is favorable for candidate because a large population support him as compared to second voting.

7 0

4 years ago