All categories

3 years ago

Q and R are independent events. if P(Q)= 1/4 and P (R)= 1/5, find P(Q and R)

Mathematics

1 answer:

Setler79 [48]3 years ago

3 0

Answer:

1/4 * 1/5 = 1/20

You might be interested in

Find the balance in the account after the given period.

Likurg_2 [28]

Answer:

2240

Step-by-step explanation:

I think you find 3% of 2000 which is 60

Then you multiply that by 4 which is 240

Add it to the 2000

and get 2240

6 0

3 years ago

Plz Help ASAP!!!!!

xz_007 [3.2K]

Answer:

The hypotenuse is square root of 65

Step-by-step explanation:

a^2 + b^2 = c^2

legs of the right triangle are a and b. Just substitute 4 for a and 7 for b and solve.

4^2+7^2=16+49=65

c^2=65

Find the square root of both sides to get

c=the square root of 65

3 0

3 years ago

Read 2 more answers

Algebra 1 please help!

Leona [35]

Answer:

a. geometric

b. an = 2(2)^n-1 or an = 2^n

c. an+1 = an x 2

Step-by-step explanation:

The sequence, 2, 4, 8, 16, 32,...

a. The sequence is geometric because there is a common ratio in the numbers of the sequence. Each number is made by multiplying the common ratio and the previous number.

b. The explicit formula that can be used to find any term is an = 2(2)^n-1 or an = 2^n

Note: the variable n and number 1 is written in italics to show that it should be in subscript

an = a1 (r)n-1

With the common ratio of n being 2 and first number being 2, we have:

an = 2(2)^n-1

an = 2^n

c. The recursive formula for the sequence is an+1 = an x 2

an+1 = an x r

Plugging in the values, we have

an+1 = an x 2

Your welcome, and comment if you have any questions! If you could mark this answer as brainliest, I would appreciate it very much!

5 0

2 years ago

Which statement correctly compares the function shown on this graph with

kirill115 [55]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

In the figure, TU is tangent to the circle at point U. Use the figure to answer the questions.

tamaranim1 [39]

(a)
$rs \times st = tu {}^{2}$
(b)
yes it is possible the formula is in part a, but we're given just the side rt and st, not rs, but not to worry we can get rs with subtraction. we can do 9-4=5 for rs. now we can plug in our values to find tu
$5 \times 4 = tu {}^{2}$
simplify with algebra
$\sqrt{20} = tu$
FINAL ANSWER
$2 \sqrt{5} = tu$

4 0

3 years ago

Read 2 more answers