Please answer the question in the picture please its urgent 200 pts plus brainly!!!!

Mathematics

1 answer:

OverLord2011 [107]2 years ago

6 0

Answer:

The answers B.

Step-by-step explanation:

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Please answer today!

Svet_ta [14]

Answer:

#1. A. C. D.

#2. D. F.

3^4 equals 81 and so do answer D. & F.

8 0

2 years ago

Read 2 more answers

How do you find the AOS and vertex of a quadratic?

andreyandreev [35.5K]

Answer:

The standard form of a quadratic is y = ax^2 + bx + c.

In this equation, the formula for the axis of symmetry is x = $\frac{-b}{2a}$ .
You know that the center will always be along that line, and you've got the x-coordinate already, so just plug that in and get the y-coordinate out for the center.

The vertex form of a quadratic is also helpful, y = a(x-h)^2 + k.

In this equation, the formula for the center is (h, k), and the axis of symmetry is x = h! That's even easier!

3 0

3 years ago

The letters r and Θ represent polar coordinates. perform the following.

nexus9112 [7]

Answer:

$\boxed{(x - \frac{1 }{ 2})^{2} + y^{2} = \frac{21 }{ 4}}\\$

Step-by-step explanation:

$r = \frac{5}{r - cos\theta}\\r^{2} - rcos\theta = 5\\\\$

$\text{Use the relationships}\\r^{2} = x^{2} + y^{2}; cos\theta = \frac{ x}{r }\\$

$\begin{array}{ll}x^{2} + y^{2} - r(\frac{x }{r }) = 5 & \text{Made the substitutions } \\x^{2} + y^{2} - x = 5 & \text{Simplified } \\x^{2} -x + y^{2} = 5 & \text{Rearranged } \\x^{2} -x + \frac{1 }{ 4} + y^{2}= 5 + \frac{1 }{ 4} & \text{Completed the square } \\(x - \frac{1 }{ 2})^{2} + y^{2}= \frac{21 }{ 4} & \text{Wrote as sum of squares} \\\end{array}\\\\$