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vazorg [7]
3 years ago
8

SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!

Mathematics
1 answer:
sdas [7]3 years ago
5 0

-b^4+9? Try that I'm not sure tho

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Write an inequality and solve the problem the sum of a number and 19 is at least 8.2.
Sunny_sXe [5.5K]
When you write it as an inequality you get x + 19 ≈ 8.2 and when you solve it it should look like x + 19 ≈ 8.2
                             19 ≈ - <u>19
</u>                               x ≈ -10.8<u>
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4 0
3 years ago
Why isn’t there a commutative property for subtraction as well as for addition?
erma4kov [3.2K]

Answer:



Step-by-step explanation:


8 0
3 years ago
Which is the equation of a hyperbola centered at the origin with x-intercept +\- 3 and asymptote y=2x
Radda [10]

Answer:

{\dfrac{x^{2}}{9} - \dfrac{y^{2}}{36} = 1}

Step-by-step explanation:

The hyperbola has x-intercepts, so it has a horizontal transverse axis.

The standard form of the equation of a hyperbola with a horizontal transverse axis is  \dfrac{(x - h)^{2}}{a^{2}} - \dfrac{(y - k)^{2}}{b^{2}} = 1

The center is at (h,k).

The distance between the vertices is 2a.

The equations of the asymptotes arey = k \pm \dfrac{b}{a}(x - h)

1. Calculate h and k. The hyperbola is symmetric about the origin, so  

h = 0 and k = 0

2. For 'a': 2a = x₂ - x₁ = 3 - (-3) = 3 + 3 = 6

a = 6/2 = 3  

3. For 'b': The equation for the asymptote with the positive slope is  

y = k + \dfrac{b}{a}(x - h) = \dfrac{b}{a}x

Thus,  asymptote has the slope of

\begin{array}{rcl}m& =& \dfrac{b}{a}\\\\2& =& \dfrac{b}{3}\\\\b& =& \mathbf{6}\end{array}

4.  The equation of the hyperbola is

\large \boxed{\mathbf{\dfrac{x^{2}}{9} - \dfrac{y^{2}}{36} = 1}}

The attachment below represents your hyperbola with x-intercepts at ±3 and asymptotes with slope ±2.

7 0
3 years ago
HELP DFASSSSSSSSSTTTTTTT PLZZZZZ   
lana66690 [7]

A. <em>distributive property </em>

i hope this helps

4 0
3 years ago
Read 2 more answers
(5x-4)(x+1) multiply then simplify
viva [34]

Answer:

5x^2+x-4

Step-by-step explanation:

Multiply 5x into (x+1)

to get 5x^2+5x

Multiply -4 into (x+1)

to get -4x-4

Combine like terms

5x^2+5x-4x-4

Answer:

5x^2+x-4

3 0
2 years ago
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