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algol13
2 years ago
15

Consider parallelogram ABCD. If AC¯¯¯¯¯¯¯¯=2x+15 and BD¯¯¯¯¯¯¯¯=5x−12, what does the value of x need to be so that the parallelo

gram is a rectangle?
A: 1
B: -9
C: 9
D: 3/7
Mathematics
1 answer:
Marianna [84]2 years ago
4 0

Answer:

9

Step-by-step explanation:

I took the quick check

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Shkiper50 [21]
Hi there!

Pauline simplified the expression correctly.

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5 0
3 years ago
If u is a unit vector, find u · v and u · w. (assume v and w are also unit vectors.) equilateral triangle
serg [7]

solution:

we know that ,

u.v = ΙuΙ ΙvΙcosθ

here,

θ =60° (since the given triangle is equilateral triangle)

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u.v = 1/2

now, u.w = ΙuΙ ΙwΙcosθ

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3 years ago
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Mars2501 [29]
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4 0
3 years ago
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I need help with this problem!
Paha777 [63]

Answer:

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Step-by-step explanation:

100%= 1.00

so

420%= 4.20

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Are you even in middle school or high school?lol
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