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maw [93]
3 years ago
9

Factor 9x2 – 4.

Mathematics
1 answer:
lara [203]3 years ago
8 0

Answer:

B

Step-by-step explanation: Differences between squares.

9x^2-4

(3^2) (x^2) -(2^2)

(3x-2)(3x+2)

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21x cubed - 18x squared y + 24xy squared
Alexxx [7]
21x³ - 18x²y + 24xy²

Simplify!

7x³ - 6x²y + 8xy²
3 0
3 years ago
Complete the equation of the line whose slope is –2 and y-intercept is (0.3).
natima [27]

Hi!

Using y = mx + b form, where m is the slope and b is the y-intercept, we get the equation: y = -2x + 0.3

Hope this helps! :D

6 0
2 years ago
What is the volume of a box that has a length of 10 inches,a width of 3 inches,and a height of 7 inches!!
Zanzabum
V=Lenght*widht* height \\\\ V=10*3*7 \\\\ \boxed{V=210 \ inches^3}
7 0
4 years ago
Read 2 more answers
Someone help??????????????
irina1246 [14]
I: x-2y>=8
II:2x+y<=3

start by isolating y on a side

with I:
x-2y>=8
-2y>=8-x
2y<=x-8
y<=x/2-4

with II:
2x+y<=3
y<=-2x+3

now you can draw I' and II' and read of the solutions with the graph.
transform the inequalities into lines in slope intercept form by replacing the inequality with equality:
y<=x/2-4
->
y=x/2-4

y<=-2x+3
->
y=-2x+3

look at the inequalities to figure out if the area above or below is valid for each line (y<=... -> area below is valid->colored in the attached image)
the area in which all areas overlap is the solution space.

6 0
3 years ago
A dot was running along a number line.
lana [24]

Answer:

The distance would be 64 and 4 miles per hour would be its average speed.

Step-by-step explanation:

On a number line 34 to 0 is 34 points. And 0 to -34 is also 34 points. Add them together and you will get the distance. To find the average speed divide the distance by the time it took to cover that distance in this case 17 minutes and you will find the average speed of the dot.

5 0
3 years ago
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