Please whats the answer?
1 answer:
Answer:
=93
Step-by-step explanation:
- <em>
</em>
- <em>Then</em><em> </em><em>mutiply</em><em> </em><em>6</em><em> </em><em>x7</em><em> </em><em>with</em><em> </em><em>will</em><em> </em><em>give</em><em> </em><em>you</em><em> </em><em>4</em><em>2</em><em> </em><em>then</em><em> </em><em>add</em><em> </em><em>5</em><em> </em><em>which</em><em> </em><em>will</em><em> </em><em>equal</em><em> </em><em>=</em><em>4</em><em>7</em>
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Answer:
2.0 seconds
Step-by-step explanation:
<u>Given quadratic functions</u>:
To find the time, in seconds, that the balloons collided at the highest point, <u>substitute</u> one equation into the other equation and rearrange to <u>equal zero</u>:
<u>Factor</u> the quadratic:
Apply the <u>zero-product property</u> to solve for x:
Therefore, the balloons collided at 1 second and 2 seconds.
To find at which time the highest point of collision occured, substitute both values of x into one of the functions:
Therefore, the time, in seconds, that the balloons collided at the highest point is 2.0 seconds.
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Their earnings would be the same after 4 hours
Let the number of hours be x, and the weekly earning be y
So, the given parameters are:
<u>Kimi</u>
- Earnings = $9 per hour
- Weekly allowance = $8
So, the equation for Kimi's weekly earning is:
<u />
<u>Jordan</u>
- Earnings = $7 per hour
- Weekly allowance = $16
So, the equation for Jordan's weekly earning is:
Equate both equations
Collect like terms
Divide both sides by 2
Hence, their earnings would be the same after 4 hours
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