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Brilliant_brown [7]
2 years ago
9

Please help me I need this for exam tomorrow and can u please show the working

Mathematics
1 answer:
Sergio [31]2 years ago
7 0

Answer:

46,57/4

Step-by-step explanation:

area = π.r^2 = π.(d^2)/4

d^2 = AB^2= 5,6^2+3,9^2 =46,57

----> area = π.46,57/4

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Match each verbal description to its corresponding expression.
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I need points thank you
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3 years ago
Any two lines lie in exactly one plane.<br><br> True<br> False
egoroff_w [7]
<u>Answer:</u> False

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3 years ago
Using a sheet of graph paper, solve the following system of equations graphically. Be sure to show any work, use a straight edge
madam [21]

Answer:

<h2> (-1,1)</h2>

Step-by-step explanation:

Given system is

\left \{ {{x+y=0} \atop {x-y+2=0}} \right.

If we graph, the solution would be the interception point between these two lines, because each linear equation represents a line. The lines are attached.

In the graph, you can observe that the solution is the point (-1,1), that is x = -1 and y = 1.

Now, if we want to solve this system by another method, we can just sum both equations and solve for <em>x</em>

\left \{ {{x+y=0} \atop {x-y+2=0}} \right.

2x+2=0\\x=\frac{-2}{2}=-1

Then, we replace this value in one equation to find the other value

x+y=0\\-1+y=0\\y=1

Therefore, the solution is (-1,1)

4 0
3 years ago
What is the slope of a line that passes through the points (-4,0) and (0,4)?
CaHeK987 [17]

Answer:

The slope is the change in Y over the change in X.

m = (0 - 3) / (0 - (-4)) = -3 / +4 = -0.75

4 0
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Which conditional has the same truth value as its converse?
zaharov [31]
I think maybe A Im not 100% sure tho
6 0
3 years ago
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