Answer:
12
Step-by-step explanation:
Assuming that the 2 actually represents square, the equation is
This equation is of the form
<u>Note</u>
Since the question is only asking for the a value which is the coefficient of x² it is clear that 12 is the coefficient without expanding (x-2)² but it is always better to proceed as above in case you are asked for b and c values also
Answer:
1/8
Step-by-step explanation:
BOOM!
Answer:
29011144
Step-by-step explanation:
Answer:
33.3cm²
Step-by-step explanation:
9 multiplied by 3.7 is equal to 33.3cm²
The <u>correct answers</u> are:
#1) Open; there is a variable;
#2) Yes;
#3) No;
#4) (-10, -30); and
#5) (10, -86).
Explanation:
#1) An open sentence is one that contains a variable. This has a variable, p, on each side, so it is an open sentence.
#2) Solving the equation
2 - 8x = -6
Subtract 2 from each side:
2 - 8x - 2 = -6 - 2
-8x = -8
Divide both sides by -8:
-8x/-8 = -8/-8
x = 1
The answer is yes.
#3) For the equation y = 4x, to see if (3, 13) is a solution, substitute 3 for x:
y = 4(3)
y = 12
Since it is not 13, (3, 13) is not a solution.
#4) For the equation y = 3x, if we substitute -10 for x, we have:
y = 3(-10) = -30
The solution would be (-10, -30).
#5) For the equation y = -9x + 4, substitute 10 for x:
y = -9(10) + 4
y = -90 + 4
y = -86
The solution would be (10, -86).