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Vilka [71]
2 years ago
8

4^3 x (100/25)-5^0 Evaluate

Mathematics
1 answer:
Eva8 [605]2 years ago
8 0

4^3 = 64

100/25 = 4

5^0=1

64 * 4-1

256-1

255

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Step-by-step explanation:

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Naviah buys 8 but no more than 12 gallons of gas each week. The price of gas ranged from $2.25 to $2.50 each week. Write a compo
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Which equation represents a parabola that opens upward, has a minimum at x = 3, and has a line of symmetry at x = 3?
densk [106]

Answer:

A.\ y = x^2 - 6x + 13 is the correct answer.

Step-by-step explanation:

We know that vertex equation of a parabola is given as:

y = a(x-h)^2+k

where (h,k) is the vertex of the parabola and

(x,y) are the coordinate of points on parabola.

As per the question statement:

The parabola opens upwards that means coefficient of x^{2} is positive.

Let a = +1

Minimum of parabola is at x = 3.

The vertex is at the minimum point of a parabola that opens upwards.

\therefore h = 3

Putting value of a and h in the equation:

y = 1(x-3)^2+k\\\Rightarrow y = (x-3)^2+k\\\Rightarrow y = x^2-6x+9+k

Formula used: (a-b)^2=a^{2} +b^{2} -2\times a \times b

Comparing the equation formulated above with the options given we can observe that the equation formulated above is most similar to option A.

Comparing y = x^2 - 6x + 13 and y = x^2-6x+9+k

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Please refer to the graph attached.

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2 years ago
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1 11/12
6 0
3 years ago
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A physician orders penicillin 525,000 units q4h for a child who weighs 55 lbs. The recommended dosage is 100,000 250,000 units/k
Nitella [24]

Answer:

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a. Lets see the convertion from lb to Kg:

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b. Minimum daily dosage is 100,000 units /kg

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c: Yes, because 525.000 units every 4 hours is between the minimun and maximun dosaje for this kid

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