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2 years ago

If sin theta = 4/5 then sec theta is?

Mathematics

1 answer:

Softa [21]2 years ago

6 0

Answer: 53.13
Explanation of answer: since theta is the unknown, then you must use the inverse of sin. (Which is sin with -1 subscript) I used a calculator and used inverse of sin and put 4/5 in parenthesis

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A population of voters contains 46% Republicans, 45% Democrats and the rest are Independents. Assume 50% of Republicans, 40% of

ICE Princess25 [194]

Answer:

The probability is 0.18

Step-by-step explanation:

Here, we are interested in calculating a conditional probability;

Let the event that a voter is a Republican be R , the event that a voter is a Democrat be D and that a voter is an independent is I

Let the event that the election issue is favored be F

We have the following probabilities;

P(R) = 46% = 0.46

P(D) = 45% = 0.45

P(I) = 1-0.45-0.46 = 0.09

The conditional probability we want to calculate is;

P(D | F) which can be read as probability of event D given event F

From the question, we can identify the following conditional probabilities;

P(F|R) = 0.46 * 0.5 = 0.23 (0.5 is gotten from 50% = 50/100)

P(F | D) = 0.45 * 0.4 = 0.18

P( F | I) = 0.09 * 0.6 = 0.054

P(F) = 0.054 + 0.18 + 0.23 = 0.464

Mathematically; From Baye’s theorem

P( D | F) ={ P ( F | D) * P(D) }/ P(F)

P( D | F) = (0.18 * 0.45)/0.464 = 0.1745

7 0

3 years ago

Use the substitution method to solve the system of equations. Is there a unique solution, no solution, or infinitely many soluti

olga_2 [115]

I hope this helps you

-4/3x+y=15

-12x-4y= -60

12x+4y=60

0=0

no solution

6 0

3 years ago

Read 2 more answers

Answer Please!!

suter [353]

1. One of your answers is correct, but the other one is not. 14/18, 21/27 is the correct one because the relationship between both is 1.5. Your other one is wrong. The other correct answer is 7/9, 28/36 because the relationship between both is 4.

4 0

3 years ago

How do you use rounding or compatible numbers to estimate the sum of a number

jarptica [38.1K]

Round the numbers, then add them

7 0

3 years ago

Four students had the following amounts of money in their pockets: $3.14, $.67, $2.45, and $1.14. How much money did they have t

Inga [223]

Answer:

Option A is correct.

They have total money = $7.40

Step-by-step explanation:

Given the statement: Four students had the following amounts of money in their pockets: $3.14, $.67, $2.45, and $1.14.

To find how much money did they have total.

An action or process of adding something to something else, the process of calculating the total of two or more numbers or amount of money.

Total amount of money four students have in their pocket = $3.14+ 0.67 +2.45 + 1.14 = \$ 7.40$

Therefore, $7.40 money did they have total.

3 0

3 years ago

Read 2 more answers