Y = (4/9) x for number 9
<span>y = (900/10) x or y = 90x for number 10</span>
<span>These equations are in y = mx + b which is good when graphing.</span>
<span>where m = slope = change in y divided by the change in x. </span>
<span>Time would always be on the x axis. </span>
<span>D: a and b are odd that should be the answer </span>
<u>Solution</u><u>:</u>
- Now, square root and square gets cancel out in the LHS. And in the RHS, apply the identity: (a + b)² = a² + 2ab + b².
- Now, transpose 4x and 4 to LHS.
- Now, do the addition and subtraction.
<u>Answer</u><u>:</u>
<u>x </u><u>=</u><u> </u><u>±</u><u> </u><u>3</u>
Hope you could understand.
If you have any query, feel free to ask.
Answer:
b)
{t | –3 < t ≤ 5}
Step-by-step explanation:
–4 < 3t + 5 ≤ 20
⇔
-4 - 5 < 3t ≤ 15
⇔
-9 < 3t ≤ 15
⇔
-3 < t ≤ 5