Exact=56.5 rounded would be 57 because you can't make half a birdhouse.
There are 2 x intercepts, x=-4 and x=-1
Answer:
H = 2
Step-by-step explanation:
7-1= 6 and then 6/3 equals 2.
The answer is: [B]: 9.61 and 10.24 .
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[Note: This is based on the assumption that the expression in the problem given is: "(π) squared"; or: "π² " — [and NOT: "(π*2)"; or, "(2*π)".]
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Explanation:
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Let us assume the expression in the problem means:
"(π) squared" or, "π² " {"pi squared"; or, "pi to the second power"}.
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Then, π² = (3.1415926535897932) ²
= 9.8696044010893583772
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Even if one uses "3.14" for "π" ; since π ≈ 3.14; then:
Then, π² ≈ (3.14)² ; and: (3.14)² = 9.8596
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Both methods result is 9.8....; which corresponds with:
Answer choice: [B]: 9.61 and 10.24 .
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The three numbers are 6, 7 and 9
<u>Explanation:</u>
First of all exclude the numbers which aren't correct.
From the 4th data,We can conclude the digit 5, 2 and 3 are wrong.
Now,
- 147 - One digit is right but wrong placed
- 189 - One digit is right and placed correctly
- 964 - Two digits are correct but at wrong place
- 523 - All digits are wrong
- 286 - One digit is right but in the wrong place
We've to find the three digits :
From case 4: 5, 2 and 3 are wrong
So, remove 5, 2 and 3 from all the cases
The numbers are:
- 147 - One digit is right but wrong placed
- 189 - One digit is right and placed correctly
- 964 - Two digits are correct but at wrong place
- _86 - one digit is right but in the wrong place
From 1st and 3rd we can say that: 4 is present in both the case but wrongly placed.
Now the digits become:
- 1_7 - One digit is right but wrong placed
- 189 - One digit is right and placed correctly
- 96_ - Two digits are correct but at wrong place
- _86 - one digit is right but in the wrong place
From 3rd and 4th case we can say that: 9 and 6 are correct but wrongly placed, 8 is not the number and 6 is placed at first
So, the two numbers of a 3 digit number are 6 and 9
From 2nd, 3rd and 4th case, the position of 6 and 9 are:
6 _ 9
From 1st case, 7 is the digit but wrongly placed. So, the 3 digit number becomes:
6 7 9