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Gekata [30.6K]
2 years ago
13

What is the value of the expression below when y=2 6y^2 +8y-9

Mathematics
1 answer:
Annette [7]2 years ago
8 0

Answer:

6y^2+7

Step-by-step explanation:

when you put in the two for y you get tour answer. i tried to simplify it down to the simplest form.

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That is the centroid.

The point where the lines from each vertex of the triangle  to the midpoints of the opposite sides intersect.
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A spinner is divided into 10 equal parts and numbered from 1 through 10. What is the probability of spinning a number less than
konstantin123 [22]

Answer:

7/10 * 1/2 = 7/20

Step-by-step explanation:

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In Navada, sales tax are 6.18%. what is the tax on items that total $111.39 before tax?
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3 years ago
Read 2 more answers
Instructions: The polygons in each pair are similar. Find the missing side length.
adoni [48]

Answer:

20

Step-by-step explanation:

<u>25 </u>  =     <u> x</u>

20           16

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4 0
3 years ago
Which of the sets of equations represent the two lines graphed?
Oksi-84 [34.3K]

Answer:

B) y = x + 2 and y = -x - 4

Step-by-step explanation:

Let the equation of a straight line with x-intercept 'a' and y-intercept 'b' be

\frac{x}{a}  +  \frac{y}{b}  = 1

The line with positive slope has x-intercept a=-2 and y-intercept b=2.

Its equation is:

\frac{x}{ - 2}  +  \frac{y}{2}  = 1

Multiply through by 2

- x + y = 2

Solve for y,

\boxed {y = x + 2}

For the line with a negative slope,

the x-intercept is a=-4 and the y-intercept is b=-4

Its equation is

\frac{x}{ - 4}  +  \frac{y}{ - 4}  = 1

Multiply through by -4

x + y =  - 4

Solve for y

\boxed {y =  - x - 4}

4 0
3 years ago
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