A) Factorise a^2 - b^2
1 answer:
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Answer:
Jerry ran a farther distance and not Henry.
Step-by-step explanation:
We are given the following information in the question:
Jerry rain miles and Henry ran 2.1 miles.
Henry claimed that he ran a farther distance.
This is a wrong claim because when we compare:
and 2.1
Hence, Jerry ran a farther distance and not Henry.
Henry may have made some mistake in plotting and 2.1 on the number line.
Answer:
x = or
Step-by-step explanation:
First, combine like terms. Like terms are terms with the same amount of the same variable.
(2x + 3x) - 7 = 42
5x - 7 = 42
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:
Parenthesis
Exponents (& roots)
Multiplications
Divisions
Additions
Subtractions
~
First, add 7 to both sides of the equation:
5x - 7 (+ 7) = 42 (+ 7)
5x = 42 + 7
5x = 49
Next, divide 5 from both sides of the equation:
(5x)/5 = (49)/5
x = 49/5
x = 9.8