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3 years ago

Please help!!! Answer with no links! Also I will give 30 points and brainliest to the first person.

Mathematics

2 answers:

miv72 [106K]3 years ago

6 0

Answer:

y = -1/16 (x-3)^2 - 1: This is the vertex form

y = -1/16x^2 + 6/16x - 25/16: This is the standard form.

Step-by-step explanation:

Got the answer right when I did the question.

OLga [1]3 years ago

4 0

Answer:

use this link it is a parabola solver https://www.emathhelp.net/calculators/algebra-2/parabola-calculator/

Step-by-step explanation:

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15,000 times 3 fourths

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Answer:

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Step-by-step explanation:

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ivanzaharov [21]

Answer:

x= -11

Step-by-step explanation:

-2x-6+5x=-39

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3 years ago

Write five million four thousand three hundred in standard form

ale4655 [162]

Five million four thousand three hundred in standard form is 5,004,300

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If (2i/2+i)-(3i/3+i)=a+bi, then a= A. 1/10 B. -10 C. 1/50 D. -1/10

Verizon [17]

Answer:

Option A is correct.

Step-by-step explanation:

We are given:

$\frac{2i}{2+i}-\frac{3i}{3+i} = a+bi$

We need to find the value of a.

The LCM of (2+i) and (3+i) is (2+i)(3+i)

$=\frac{2i(3+i)}{(2+i)(3+i)}-\frac{3i(2+i)}{(2+i)(3+i)}\\=\frac{6i+2i^2}{(2+i)(3+i)}-\frac{6i+3i^2}{(2+i)(3+i)}\\=\frac{6i+2i^2-(6i+3i^2)}{(2+i)(3+i)}\\=\frac{6i+2i^2-6i-3i^2)}{5+5i}\\=\frac{-i^2}{5+5i}\\i^2=-1\\=\frac{-(-1)}{5+5i}\\=\frac{1}{5+5i}$

Now rationalize the denominator by multiplying by 5-5i/5-5i

$=\frac{1}{5+5i}*\frac{5-5i}{5-5i} \\=\frac{5-5i}{(5+5i)(5-5i)}\\=\frac{5-5i}{(5+5i)(5-5i)}\\(a+b)(a-b)= a^2-b^2\\=\frac{5(1-i)}{(5)^2-(5i)^2}\\=\frac{5(1-i)}{25+25}\\=\frac{5(1-i)}{50}\\=\frac{1-i}{10}\\=\frac{1}{10}-\frac{i}{10}$