Answer:910
Step-by-step explanation: it rounds up because if the last number is more than 5 you round up
Vertex form of a parabola
<span>y = a (x - h)^2 + k </span>
<span>where (h, k) is the vertex </span>
Substituting the values of h and k.
we get,
<span>y = a(x + 4)^2 + 2 </span>
<span>substituting in the point (0, -30) for x and y
</span><span>-30 = a (0 + 4)^2 + 2
</span>solve for a,
<span>-30 = 16 a + 2 </span>
<span>-32 = 16 a </span>
<span>-2 = a </span>
<span>y = -2(x + 4)^2 + 2 </span>
<span>Put y = 0 </span>
<span>-2 x^2 - 16 x - 30 = 0 </span>
<span>-2(x^2 + 8 x + 15) = 0 </span>
<span>x^2 + 8 x + 15 = 0 </span>
<span>(x + 3)(x + 5) = 0 </span>
<span>x = -3
x = -5</span>
25 is 5 more than 20 which is 25% more since 5/20 = 1/4 = 25%
To check (1.25 * 20 = 25)
Thomas finished 2.4 seconds faster than Mikah which has higher speed than Mikah.
What is arithmetic?
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Main body:
200-meter race finished by Thomas = 25.7 sec
200-meter race finished by Mikah = 28.1 sec
The difference between their time shows How much faster did Thomas run the race than Mikah.
=28.1 - 25.7
=2.4 seconds
Hence, Thomas finished 2.4 seconds faster than Mikah which has higher speed than Mikah.
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brainly.com/question/14753192
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Positive because you will said that has the charged is about $2.50
