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SIZIF [17.4K]
3 years ago
8

X^2-9 can be factored using the formula

Mathematics
1 answer:
Gala2k [10]3 years ago
6 0

Answer:

a^2 - b^2 = (a-b)(a+b)

Step-by-step explanation:

x^2 -9

Rewriting as

x^2 - 3^2

We notice that this is the difference of squares

a^2 - b^2 = (a-b)(a+b)

x^2 - 3^2 = (x-3)(x+3)

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Find the coordinates of the midpoint of the segment with the given endpoints.
aleksandr82 [10.1K]
The coordinates of the midpoint of AB is (4.5, -1.5)

We can find this by taking the average of each coordinate. The average of the x's (2 and 7) is 4.5, while the average of the y's (-4 and 1) is -1.5.

The coordinates of the midpoint of CD is (-5.5, 1)

We can find this by taking the average of the coordinates as we did in the first one. The average of the x's (-3 and -8) is -5.5, while the average of the y's (-2 and 4) is 1. 
6 0
3 years ago
I need help on this ASAP so please help
In-s [12.5K]

Answer:

it’s 8 and 2 and 4 and 0

Step-by-step explanation:

this is because when you multiply 2x the x is an 8 so 2 times 8 is 16 then minus 2 is 14 which is greater than -4 same for my other answer

7 0
2 years ago
Fresh Express
kolbaska11 [484]

Answer: £245

Step-by-step explanation:

24.5 hours from wednesday to saturday

24.5 X 10 = 245

4 0
3 years ago
Describ a real world situation where oppisite quantities equal zero
Neporo4naja [7]
I THINK this may be the answer not 100% sure tho!

1. Two forces equal and acting in opposite direction result in zero force.

2.Sum of two moment of forces acting in opposite sense produce zero resultant.

Any two equal and opposite vectors produce zero net effect
6 0
3 years ago
Will Mark The Brainliest. Write an equation of the line graphed in slope-intercept form using the variables x and y.
baherus [9]

Answer:

\boxed{y=-2x+5}

Step-by-step explanation:

The equation in slope-intercept form is given by:

y=mx+c

where m is the slope and c is the y-intercept.


The given line passes through so many points. We can use any two these points to find the slope of the line.

The line passes through (x_1,y_1)= (1,3) and (x_2,y_2)=(2,1).

The slope is given by;

m=\frac{y_2-y_1}{x_2-x_1}.


\Rightarrow m=\frac{1-3}{2-1}.


\Rightarrow m=\frac{-2}{1}=-2.

The y-intercept from the graph is c=5


Our equation finally becomes;

y=-2x+5




8 0
3 years ago
Read 2 more answers
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