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DochEvi [55]
3 years ago
13

Conditional probability. Please explain answer

Mathematics
1 answer:
nikdorinn [45]3 years ago
8 0
The answer is 2/3 I can't explain but I know the answer
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In triangle abc, angle A is the right angle. What is the value of y?
Natalka [10]

Answer:

A

Step-by-step explanation:

In a right triangle, the side opposite to the 90 degree angle (here, side opposite to angle A) is known as the hypotenuse.

Also, the side that is "opposite" to the angle given (here side opposite is y to angle given 30 degrees) is the opposite side.

Since we want to find "opposite" and have "hypotenuse" , recalling trig ratios, we can say opposite/hypotenuse is the ratio SINE, so we can write:

Sin(30)=\frac{y}{7}

We solve for y:

Sin(30)=\frac{y}{7}\\y = 7 Sin(30)

Since the answer choice has angles in radians, we recall 30 degrees is \frac{\pi}{6} radians.

Thus, the correct answer is  7Sin(\frac{\pi}{6}), or option A

3 0
4 years ago
Read 2 more answers
Enter this equations key features in the table and sketch the graph. y=-1/18(x+3)^1(x-3)(x-4)
Nikitich [7]

Answer:

step below and graph

Step-by-step explanation:

y intercept: x=0      y = (-1/18) * 3 * (-3) * (-4) = - 2

y = -1/18 * (x³ - 4x² - 9x +36)    ... leading coefficient: (-1/18 x³)   -1/18

highest degree:( x³)  3

6 0
3 years ago
Marsha pays $25 each month for a car wash membership. Which of the following represents the total amount subtracted from her acc
Kipish [7]

The correct amount taken from the account for car wash membership fee is shown below:

−4|25| = −$100

What is the amount subtracted from the account on the account balance?

The amount subtracted has a negative impact on the account balance because it reduces the account balance as it is an expense or debit transaction unlike a credit that increases the balance

$25 is spent every month, which means -$25 taken from the account every month

total amount deducted for 4 months=4*-$25

total amount deducted for 4 months=-$100

The correct option which indicates -$100 is −4|25| = −$100

Find out more membership subscription fee on:brainly.com/question/28372534

#SPJ1

3 0
2 years ago
what is the probability of rolling on a single die a 1,2,3,4,5,6? write as a percent rounded to the nearest whole
Marina86 [1]

Answer:

17%

Step-by-step explanation:  the possibility of rolling any of these numbers is 1/6.. the percentage for that is 16.666% and rounded to the nearest whole number makes the answer 17

5 0
3 years ago
Kentaro can type 48 words per minute. At this rate, how many words can he type in half an hour? A. 24 B. 96 C. 1440 D. 2880
zhuklara [117]
2880 words per minute
3 0
3 years ago
Read 2 more answers
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