All categories

2 years ago

A coin is unbalanced such that it comes up tails 55% of the time.

1 answer:

8 0

A. P[TTTTH] = .55^4*.45 = .0412

b. P[HHHT] = .45^4*.55 = .0226 

c. 1/.45 = 2.222 

d. 1/.55 = 1.818

You might be interested in

Please answer the problem and show your work.Thank you.

Vinvika [58]

Answer:

8. m=6

9. x=2; Alyssa is incorrect because she subtracted 8 from 16 when in reality she should have divided 16 by 8 to get 2. The real solution is 2 because 8 times 2 is equal to 16.

Step-by-step explanation:

Question 8:

2m-6=m

-2m -2m (subtract 2m from both sides)

-6=-m

- - (divide both sides by the negative)

m=6

Question 9:

8x=16 (divide both sides of the equation by 8)

8 8

x=2

8 0

1 year ago

Read 2 more answers

Is (–28, 92) a solution to the equation y = 92?

lesya692 [45]

Answer:

yes

Step-by-step explanation:

the second number in a set of parenthesis is the y value and the number in the parenthesis is 92 which makes y=92 true

5 0

2 years ago

How the heck do you do this?!

Dennis_Churaev [7]

Use PEMDAS to figure out the order of operations:

Parentheses
Exponents
Multiplication/Division
Addition/Subtraction

Solve (-4 + -6) first, as this is in parentheses:

$-4 + -6 = -10$

$10 - 5.3 * -10$

Solve 5.3 * -10 next, as this is multiplication:

$5.3 * -10 = -53$

$10 - -53$

Now we can solve the equation:

$10 - -53 = 63$

The answer is 63.

7 0

2 years ago

Read 2 more answers

Expression equivalent to (0.28t-0.3)-(0.7t-0.28)?

Softa [21]

B because it obviously can’t be any other

3 0

2 years ago

Rewrite the equation correctly.

Nataliya [291]

Answer:

Step-by-step explanation:

2x - y = 5 subtract 2x from both sides

2x - 2x - y = -2x + 5

-y = -2x + 5 change the signs

y = 2x - 5

7 0

3 years ago