M2. A (Estimated Difficulty Level: 3)
<span>Try plugging in some real numbers until you get one of the answers. For example, if you choose 4, then </span>calcu- late<span> 2×4+42 +1 = 25. The answers don’t list 25, so choose another integer to start with. If you choose 5, you’ll get 2 × 5 + 52 + 1 = 36, so the answer is A.</span>
<span>If you are an algebra fiend, you may notice that if the integer is x, then the calculation is 2x+x2+1 = (x+1)2, so the final sum must be the square of an integer. Only answer A is a perfect square.</span>
have you seen how he answers questions? doesn't deserve to have people answer his
Step-by-step explanation:
Answer:
40%
Step-by-step explanation:
$1,800 × 0.40 = 720
Half of 1800 is 900, so 40% is 720
ANSWER
EXPLANATION
The given trigonometric equation is
The range of the cosine function
is
But,
Therefore there is no value of t that will make
hold.
The correct answer is False