Answer:
1. The missing value is 9
2. The missing value is 81
Step-by-step explanation:
1. To find the missing value of a perfect square you divide the center term (-6 as is -6x) by two to get 3 then square the three to get 9
To check this write it as the simplified form (x-3)^2 and multiply it out again using foil. x times x is x^2, -3 times x is -3x ( this happens twice adding up to the -6x), and -3 times -3 is 9 making it x^2 -6x +9
2. Follow the steps for the previous problem to get the same answer for this one. Divide 18 (middle term) by 2 making 9. Then square the 9 making 81.
Answer:
13 flowers per arrangement
Step-by-step explanation:
8*4=32
10*2=20
8 tulips in each arrangement
5 daises in each arrangement
8+5=13 flowers
Answer:
C
Step-by-step explanation:
Two lines that intersect and form right angles are called perpendicular lines. The symbol ⊥ is used to denote perpendicular lines.
You are solving for the variable (c).
Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS (Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction)
First, subtract 8 from both sides
4c + 8 (-8) = 20 (-8)
4c = 20 - 8
4c = 12
Next, to fully isolate the variable (c), divide 4 from both sides
(4c)/4 = (12)/4
c = 12/4
c = 3
3 is your answer for c.
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