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Georgia [21]
3 years ago
15

D%20%2B%20xy%20%2B%202%20%7By%7D%5E%7B2%7D%20%3D%204" id="TexFormula1" title="x - 3y = 5a \: \: and \: \: {x}^{2} + xy + 2 {y}^{2} = 4" alt="x - 3y = 5a \: \: and \: \: {x}^{2} + xy + 2 {y}^{2} = 4" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Dovator [93]3 years ago
3 0

Answer:

look down below the answers

Step-by-step explanation:

its 8

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The heights of 200 adults were recorded and divided into two categories. Which two-way frequency table correctly shows the margi
Temka [501]

Answer: c

Step-by-step explanation:

C

7 0
3 years ago
What are the slope and y-intercept of the graph of the given equation? y = 1.9x + 2.5
trapecia [35]

Answer:

The slope <em>m</em> is 1.9 and the y-intercept <em>b</em> is 2.5.

Step-by-step explanation:

This is in slope-intercept form, y=<em>m</em>x+<em>b</em>, where <em>m</em> is slope and <em>b</em> is the y-intercept.

y = 1.9x + 2.5 means that <em>m </em>is 1.9 and <em>b</em> is 2.5.

8 0
3 years ago
Let f(x) = 5x + 6 and g(x) = -7x - 4. <br> Find f(x) + g(x)
sattari [20]
5x + 6 + (-7x - 4)

5x + 6 - 7x - 4

-2x + 2
4 0
4 years ago
A pizza has a diameter of 12 inches. Each piece has a central angle of radians. What is
Firlakuza [10]

Answer:

The area of one slice of pizza is 18 in²

Step-by-step explanation:

First we have to know that the 360 ​​° representing the circle expressed in radians are expressed as 2π

Now we must calculate the area of ​​the circle

a = π * r²

a = π * (12in)²

a = 144π in²

Now that we have the area of ​​the circumference we multiply it by (π/4) / (2π)

144π in² * (π/4) / (2π) =

144 in² * 1/8 =

18 in²

The area of one slice of pizza is 18 in²

3 0
3 years ago
Da<br> A<br> Solve the equation 2x^2+3=0
Anika [276]

Answer:

x = ±i(√6 / 2)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra I</u>

  • Solving quadratics

<u>Algebra II</u>

Imaginary root i

  • √-1 = i

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

2x² + 3 = 0

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Subtraction Property of Equality] Subtract 3 on both sides:                        2x² = -3
  2. [Division Property of Equality] Divide 2 on both sides:                                  x² = -3/2
  3. [Equality Property] Square root both sides:                                                    x = ±√(-3/2)
  4. Simplify:                                                                                                             x = ±i(√6 / 2)
4 0
3 years ago
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