4 years ago

F (x) = 3x + 24x+50? Converting standard form to vertext form

Mathematics

1 answer:

Julli [10]4 years ago

8 0

Answer:

Y=3(x+4)^2+2

Step-by-step explanation:

Since vertex form is y=a(x-h)^2 +k, we need to convert 3x^2+24x+50 to something like y=a(x-h)^2+k. We can take 2 out and get 3(x^2+8x+16)+2. Then we get y=3(x+4)^2+2.

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In a certain chemical, the ratio of zinc to copper is 4 to 15. A jar of the chemical contains 750 of copper. How many grams of

nataly862011 [7]

Answer: it contains 200 grams of zinc.

Step-by-step explanation:

Ratio of zinc to copper is 4 to 15 = 4;15

Total ratio = 4+15= 19

We first find amount of both zinc and copper( the whole chemical) which is equal to

ratio of copper / total ratio x (the entire chemical--total grams of zinc and copper) =amount of copper

15/19 x X = 750

X= 750 X 19 / 15= 950 grams

To find amount of zinc in the chemical = ratio of zinc / total ratio x total amount of chemical

=4/19 x 950

=200 grams

3 0

3 years ago

a major arranges his soliders in rows to form a perfect square 40 soliders are left out if the total no. of soliders are 6281, f

LUCKY_DIMON [66]

Answer:

79 soldiers

Step-by-step explanation:

Since 40 soldiers were not included in the square, the square consists of 6241 soldiers. 6241 represents the area of the square, and the rows (r) represents a side of the square. Since the area of a square = the length of the side squared, then $6241 = r^{2}$ .