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3 years ago

Distribute 2 (9x^2 + 3).

Mathematics

1 answer:

beks73 [17]3 years ago

5 0

Answer:

18x^2+6

Step-by-step explanation:

2(9x^2+3)

multiply each term in parentheses by 2

2 x 9x^2+2 x 3

calculate product

18x^2+2 x 3

multiply numbers

18x^2+6

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3 years ago

How would I graph this?

elena55 [62]

$y\leq 2x-5$

↝ x-intercept

$2x-5=0\\2x=5\\x=\frac{5}{2}$

↝ y-intercept

y = -5

↝ $y\leq 2x-5$ means that the shade/area is below the graph as shown in the first picture.

$y\leq -\frac{1}{2}x-3$

↝ x-intercept

$-\frac{1}{2}x-3=0\\-x-6=0\\-x=6\\x=-6$

↝ y-intercept

y = -3

↝ Since it's "≤" therefore. The shade/area is below the graph. For second picture.

First picture is first inequality

Second picture is second inequality.

3 0

3 years ago

Which equation best represents the graph above

Svet_ta [14]

Answer:

x = -1

Step-by-step explanation:

Since the line is completely vertical there is no slope.

When a line is completely vertical, the setup is x = ___ (fill in the blank with the number that the line intersects on the x axis, in this case -1.)

When a line is completely horizontal (not applicable in this problem) the setup is y = ___ (fill in the blank with the number the line intersects on the y axis.)

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3 years ago

20 POINT QUESTION!! Complete the equation of the linear function. y = x +

Viefleur [7K]

$A=(0,1); B=( \frac{1}{2}, 0) \\ 
y=ax+b
 
\left \{ {{1=0a+b} \atop {0= \frac{1}{2}+b }} \right. \\ 
 \left \{ {{1=b} \atop { \frac{1}{2}a=-b}} \right. \\ 
 \left \{ {{b=1} \atop {a=-2}} \right. 

y=-2x+1$