Answer:
i do only 1 part
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The answer is <span>f(x) = 2x2 + 3x – 3
</span>
f(x) = ax² + bx + c
a - the leading coefficient
c - the constant term
<u>We are looking for a = 2, c = -3</u>
Through the process of elimination:
The first (f(x) = 2x3 – 3) and the third choice (f(x) = –3x3 + 2) have x³ so these are not quadratic function.
In the function: <span>f(x) = –3x2 – 3x + 2
</span>a = -3
c = 2
In the function: f(x) = 2x2 + 3x – 3
a = 2
c = -3
Answer: 46 jumping jacks per minute
Step-by-step explanation: Divide the total number of jumping jacks (184) by the time (4 minutes). Since she is going at a constant rate, this would be equal to 46 jumping jacks per minute. On a coordinate plane, this would be a linear function.
<h2>
Mass conversion</h2>
<em>Mass is the amount of matter that a body possesses and its unit in the </em><em>international system</em><em> of units is the</em><em> kilogram.</em>
<h3>How many kilograms is 2 pounds?</h3>
- <em>Knowing that </em><em>1 pound is 2.205 kilograms.</em>
<h3><em>
Therefore ⇒ 2 lb * 1 kg / 2.205 lb = 0.907 kg</em></h3>
<em />
Answer: In 2 pounds there are 0.907 kilograms.
