2((x+2)(x+2)}-4=28
2{x^2 + 4x + 4}-4=28
2x^2 +4x=28
2(x^2+2x)=28
x^2+2x=28/2
x^2+2x=14
Answer:
Liam can paint 18 bird houses.
Step-by-step explanation:
9/10 divided by 1/20 = 18
Answer: -21
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Answer:
Refer to the Attachment
Step-by-step explanation:
Rewriting the fractions in decimal and whole number, we have the following:
Thus, 42/3 is on 14 and 25/3 is on 8 and then add 1/3 from 8 going to 9.
Therefore, the points must be plotted as follows:
The blue point indicates the 42/3 while the red point indicates the 25/3.
Answer:
1680
Step-by-step explanation:
Considering repeatition is not allowed.
We can use permutation to reach to the required answer.
Consider four digits to be placed in four boxes. Now for the number to be odd, unit digit must be odd. Therefore, unit digit can only be filled by 1, 3, 5,7, or 9. That is 5 ways. Now, other three boxes can be filled with 8, 7 and 6 ways respectively.
Therefore, Total numbers = 5×8×7×6 = 1680
