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Elenna [48]
3 years ago
8

Can someone help me out plz

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
5 0
  1. I think \left \{ {{y=-3,-6,-7,-6,-3 } \atop {x=-5,-4,-3,-2,-1}} \right.

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The Length of one side of a parallelogram is 3 more than twice the length of the adjacent side. The perimeter of the parallelogr
katovenus [111]

Answer: 4 cm and 11 cm.


Step-by-step explanation:

1. You can calculate the perimeter of a parallelogram as following:

P=a+b+c+d

Where a+b+c+d are the lenghts of the sides.

By definition the parallelogram has two pairs of parallel sides, therefore:

a=c and b=d

Then, you can calculate the perimeter as following:

 P=2(a+b)

2. Let's call the adjacent side x, then the other side is 2x+3.

3. Substitute values  and solve for x:

30=2(x+2x+3)\\30=2(3x+3)\\30=6x+6\\24=6x\\x=4

4. Then the lenghts of the sides are:

x=4cm\\2x+3=2(4cm)+3=11cm


5 0
4 years ago
Pyramid ABCDE is a square pyramid.<br><br> What is the lateral area of pyramid ABCDE ?
SpyIntel [72]

Answer:

256√3 in^2.

Step-by-step explanation:

tan 60 = lateral height of 1 face / 8

Lateral height = 8 tan 60 = 8√3

Area of 1 face = 8 * 8√3 = 64√3

Lateral Area = 4 * 64√3 = 256√3 in^2

8 0
4 years ago
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a developer sells lost of land in increments of 3/4 acre. if the developer has 60 acres, how many lots can be sold?
Lelechka [254]

Answer:

80 lots

Step-by-step explanation:

6 0
3 years ago
The number m is 30 greater than the number 10
Serggg [28]
M = 30 + 10
m = 40
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3 years ago
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If you get a student loan for $2,000 at 8% interest, what is the simple interest for one year?
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You would have a simple interest of 2 with a simp
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