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dalvyx [7]
3 years ago
6

Graph the line described by y=5/2x-4

Mathematics
1 answer:
velikii [3]3 years ago
8 0
You can go to desmos.com for a free online graphing calculator. Simply input the equation and bam you have a graph.

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IF=2x+2, IZ=2x+12 solve for x
Digiron [165]
ANSWER

The value of x is

9


EXPLANATION

F is the point of intersection of the medians of the triangle,

The ratio is

IF:IZ=2:3


This implies that,

(2x + 2): (2x + 12) = 2: 3


We can write this as a fraction to get,

\frac{2x + 2}{2x + 12}  =  \frac{2}{3}


We cross multiply to get,

3(2x  + 2) = 2(2x + 12)

Let us expand the brackets yo obtain,

6x + 6 = 4x + 24


We group like terms to get,

6x - 4x = 24 - 6


2x = 18


We divide both sides by 2 to get,

x = 9

The correct answer is B.
8 0
3 years ago
Pleaseee help, question what is the sum of 4x^2 + 2x - 5 and 7x^2 - 5x + 2
Nataliya [291]

Simplification of polynomials.

Polynomials <em>are</em> mathematical expressions made up of many terms.<em>To</em> simplify a polynomial <em>the most, you must collect all</em><em> </em>like terms <em>and rearrange them from highest to lowest power.</em>

<h3>4x² + 2x -5 + 7x² - 5x+2</h3><h3>4x² + 2x -3 + 7x² - 5x+2</h3><h3>11x² + 2x - 3 - 5x</h3><h3>11x² - 3x - 3 ====> Option "A"</h3>
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A cone has a radius of 5 inches and a height of 18 inches. What is the exact volume of the cone? A. 150π in3 B. 300π in3 C. 450π
balandron [24]
Volume = 1/3 × pi × r^2 × h
= 1/3 × pi × 5^2 × 18
= 150pi

the answer is A

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Which equation represents the slope-intercept form of the line below?
Alekssandra [29.7K]
Y = -3x + 5

When creating a line in slope intercept form, the -3 always goes right next to the x after the equals sign. Also, the y intercepts y value (the second part of the parenthesis) just gets added on at the end of the equation. 
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3 years ago
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An estimate for - ✓ 72 is<br> A.- 8.1<br> b. - 8.5<br> c. -9.1<br> d. -9.5
Agata [3.3K]
The answer is : b. -8.5
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4 years ago
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