Draw a rectangle that is 3 squares long and 1/2 of a square wide. Then add up the partial squares to find the area. Multiply to
check your answer.
2 answers:
Answer:
3/2 or 1 1/2 squares.
Step-by-step explanation:
It says it on the image attached. Also, it's what you get when you multiply
.
<h3>Explanation:</h3>
P.S: <u>Rectangle attached in image.</u>
According to the image, we can see that 3 rectangles are <u>half shaded.</u>
<u>This means that:</u>
- Half shaded square + Half shaded square + Half shaded square
- => 0.5 + 0.5 + 0.5
- => 1.5 units²
<u>To check our answer:</u>
- 3 x 0.5 = Area of rectangle
- => 1.5 units² = Area of rectangle
Hence, our explanation is <u>correct.</u>
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Answer:
The probability that A selects the first red ball is 0.5833.
Step-by-step explanation:
Given : An urn contains 3 red and 7 black balls. Players A and B take turns (A goes first) withdrawing balls from the urn consecutively.
To find : What is the probability that A selects the first red ball?
Solution :
A wins if the first red ball is drawn 1st,3rd,5th or 7th.
A red ball drawn first, there are places in which the other 2 red balls can be placed.
A red ball drawn third, there are places in which the other 2 red balls can be placed.
A red ball drawn fifth, there are places in which the other 2 red balls can be placed.
A red ball drawn seventh, there are places in which the other 2 red balls can be placed.
The total number of total event is
The probability that A selects the first red ball is