Three coins are tossed. Find the probability that two land on heads.

1 answer:

4 0

Answer:he usual assumption is that there is a 50% chance of heads on each toss of each coin. So, the chances of getting at least two heads when tossing three coins at the same time is 4/8 (Because all the 8 possibilities are equally likely) 50 percent.

Step-by-step explanation:

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A family has two cars. The first car gets 25 miles per gallon and the second car gets 15 miles per gallon. In a week the two car

kkurt [141]

Answer:20 and 15 gallons

Step-by-step explanation:

Given

The first car gets 25 miles per gallon

The second car gets 15 miles per gallon

Two cars consumed 35 Gallons

they went for 725 miles in total

suppose the first car consumes x gallons

so, the second car consumes 35-x gallons of gas

We can write

$\Rightarrow 25x+15(35-x)=725\\\Rightarrow 25x-10x=725-525\\\Rightarrow 10x=200\\\Rightarrow x=20$

First consumed 20 gallons and second consumed 15 gallons

4 0

3 years ago

Use your grapher to determine which of the graphs matches the polar equation r = 3 sin 2θ.

VikaD [51]

Given:

r = 3 sin 2θ 
Find: Graph that matches the polar equation Solution:

Use the polar graph type in the graphing calculator and enter the following values: 3sin (2 theta). Please see the attached image for the answer. The graph would look like butterfly wings.