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Vesnalui [34]
3 years ago
15

Please help me! I don't have much time to complete the test, and anything helps. I'll give brainliest when I can!

Mathematics
2 answers:
mestny [16]3 years ago
7 0
Kim's table is correct
Eva8 [605]3 years ago
3 0

Answer:

The Answer is Kim.

Step-by-step explanation:

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During a recent eruption, the volcano spewed out copious amount of ash. One small piece of ash was ejected from the volcano with
nlexa [21]
For question number 1:The plot H = H(t) is the parabola and it reaches its maximum in the moment when exactly at midpoint between the roots t = 0 and t = 23. At that moment t = 23/2 or 11.5 seconds.
For question number 2:To find the maximal height, just simply substitute t = 11.5 into the quadratic equation. The answer would be 22.9.
For question number 3:H(t) = 0,   or, which is the same as -16t^2 + 368t = 0.Factor the left side to get  -16*t*(t - 23) = 0.t = 0, relates to the very start of the process, when the ash started its way up.The other root is t = 23 seconds, and it is precisely the time moment when the bit of ash will go back to the ground.
6 0
3 years ago
Conditional statement:If the dog barks,thensomeone is at the door.
vesna_86 [32]
1st one is true and second one false.
8 0
2 years ago
If the square has a side of 3xy, what is the perimeter?​
ololo11 [35]

Answer:

12x⁴y⁴

Step-by-step explanation:

3xy + 3xy + 3xy + 3xy = 12x⁴y⁴

3 0
2 years ago
Tim poured 0.5 liters of water into a beaker and then added 300 milliliters more. What was the total amount of water in the beak
SVETLANKA909090 [29]
So, Using your conversion chart(if you have one) you'd see 1 liter makes 1000 milliliters. So, if you have half of a liter(0.5), then you have 500 milliliters. If he adds 300 more, then you get 800 milliliters total, which is also equal to 0.8 liters. Hope this helps! 
8 0
2 years ago
Which of the following best describes the algebraic expression x/3 -15
Dennis_Churaev [7]

Answer:

A. A number divided by three minus fifteen.

7 0
3 years ago
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