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luda_lava [24]
3 years ago
10

Kevin claims he can draw a trapezoid whit three right angles. is this posible (explain)

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
3 0
No because if u count the corners there are 4 right angles
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Consider the system of equations.
Harman [31]

The solution to the system of equations x + 2y = 1  and -3x-2y = 5 is:

x  = -3,  y = 2

The given system of equations:

x  +  2y  =  1............(1)

-3x - 2y  =  5..........(2)

This can be written in matrix form as shown:

\left[\begin{array}{ccc}1&2\\-3&-2\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}1\\5\end{array}\right]

Find the determinant of \left[\begin{array}{ccc}1&2\\-3&-2\end{array}\right]

\triangle = 1(-2) - 2(-3)\\\triangle = -2+6\\\triangle  = 4

\triangle_x = \left[\begin{array}{ccc}1&2\\5&-2\end{array}\right]\\\triangle_x = 1(-2)-2(5)\\\triangle_x = -2-10\\\triangle_x =-12

\triangle_y = \left[\begin{array}{ccc}1&1\\-3&5\end{array}\right]\\\triangle_y = 1(5)-1(-3)\\\triangle_y = 5 + 3\\\triangle_y =8

x = \frac{\triangle_x}{\triangle} \\x = \frac{-12}{4} \\x = -3

y = \frac{\triangle_y}{\triangle} \\y = \frac{8}{4} \\y = 2

The solution to the system of equations x + 2y = 1  and -3x-2y = 5 is:

x  = -3,  y = 2

Learn more here: brainly.com/question/4428059

3 0
2 years ago
I have no clue help!?
vfiekz [6]

Answer:

Corresponding angles theorem.

Step-by-step explanation:

The corresponding angles theorem states that corresponding angles are congruent.

Pretty much means that every other angle is congruent if two lines are parallel and a line traverses them.

3 0
3 years ago
Read 2 more answers
Tahmar knows the formula for simple interest is I = Prt, where I represents the simple interest on an amount of money, P, for t
vichka [17]
I=prt
20=p X .05 X 5
20 = p X .25
20/.25 = p
80 = p
She started with $80
4 0
3 years ago
Math property x+(-x)=0
alexira [117]

Answer:

True

Step-by-step explanation:

Bcs, in the equation x+(-x)=0 you do x-x ( which is basically x+ -x) and they cancel each other out. This means your equation is 0=0

7 0
3 years ago
PLEASE HELP ASAP!!
andriy [413]
If I did this correctly it simplifies to 0 = 8. So I think B is the correct answer. Hope this helps!!
6 0
3 years ago
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