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nataly862011 [7]
1 year ago
5

The lines represented by

Mathematics
1 answer:
Sliva [168]1 year ago
7 0

Answer:

perpendicular lines, hope this helps <33

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Solve 2x2 + 5x = 12
aliya0001 [1]

2x2+5x=12, 2x+5x=7x, 12+2=14, 7x/7=14/7, x=2

4 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Kitty [74]

Answer:   (-2, 5) and (2, -3)

<u>Step-by-step explanation:</u>

Graph the line y = -2x + 1 (which is in y = mx + b format) by plotting the y-intercept (b = 1) on the y-axis and then using the slope (m = -2) to plot the second point by going down 2 and right 1 unit from the first point:

        y - intercept = (0, 1)            2nd point = ( -1, 1).

Graph the parabola y = x² - 2x - 3 by first plotting the vertex and then plotting the y-intercept (or some other point):

y = x^2-2x-3\quad \rightarrow \quad a=1,\ b=-2,\ c=-3\\\\\text{axis of symmetry:}\ x = \dfrac{-b}{2a}\ \longrightarrow \ x=\dfrac{-(-2)}{2(1)}=\dfrac{2}{2}=1\\\\\text{y-value of vertex:}\ f(1) = (1)^2-2(1)-3\quad \longrightarrow \quad y = 1 - 2 - 3=-4\\\\\text{y-intercept:}\ f(0)= (0)^2-2(0)-3\ \longrightarrow \ y=0 - 0 - 3 = -3 \\

         vertex = (1, -4)                2nd point (y-intercept) = (0, -3)


<em>see attached</em> - the graphs intersect at two points:  (-2, 5) and (2, -3)


8 0
3 years ago
HELPPPPPPPPP please fast
gtnhenbr [62]

Answer:

B. 1

Step-by-step explanation:

I used a calculator

5 0
3 years ago
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Brainiest will be given . Please help me
mixas84 [53]

Answer:

If the shape of end face has n sides

Then, in total, there are n+2 faces

Using that formula

Faces in 20-sided polygon = n+2 = 20+2 = 22

Step-by-step explanation:

Pls vote as brainliest

6 0
3 years ago
21/7 rewrite as a whole number
saw5 [17]
Do the division :-  21 / 7  = 3

Answer is 3
3 0
3 years ago
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