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patriot [66]
3 years ago
10

Find the area of the right triangle ADC

Mathematics
2 answers:
Igoryamba3 years ago
4 0
A= 1/2(bh)
A= 1/2(8)(4)
A= 16
vesna_86 [32]3 years ago
3 0

Answer:

32/2= 16

Step-by-step explanation:

formula for area of triangle is base x height divided by 2

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REY [17]

Answer: y=9

Step-by-step explanation:

6 0
3 years ago
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Help I need help with all of my question so be aware lol
LenKa [72]
N = 1 corresponds to day 1
n = 2 corresponds to day 2
...etc etc...
n = 21 corresponds to day 21

Plug in n = 21
a_n = 100 + (n-1)*4
a_21 = 100+(21-1)*4 ... replace every n with 21
a_21 = 100 + 20*4
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7 0
3 years ago
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pantera1 [17]

9514 1404 393

Answer:

  (x, y) = (3, 7)

Step-by-step explanation:

If you divide the second equation by 2, it becomes ...

 -x +2y = 11

Adding this to the first equation gives you the value of y:

  (x -y) +(-x +2y) = (-4) +(11)

  y = 7 . . . . . . . . simplify

The first equation can be rearranged to give an expression for x:

  x = y -4

  x = 7 -4 = 3

Then the solution is seen to be (x, y) = (3, 7).

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Personally, I like a graphing calculator for a quick and easy solution to many linear systems. (If the solutions are non-integers, it may not be so helpful.)

6 0
3 years ago
How do you find the perimeter of a dented square?
Vikentia [17]
You still have to add up all the sides
5 0
3 years ago
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What is the surface area of the present?
IRISSAK [1]

Answer:

10000 cm cubed

Step-by-step explanation:

The surface area of the present is 25 times 20 times 20 which equals 10000 cm cubed.

6 0
3 years ago
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