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dem82 [27]
3 years ago
13

Write a system of equations to describe the situation below, solve using elimination, and fill in

Mathematics
1 answer:
Rudik [331]3 years ago
7 0

Answer:

1x2x4x7x87

Step-by-step explanation:

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What is the area of this figure? Enter your answer in the box. units² An irregular heptagon is graphed on a coordinate plane. Th
AURORKA [14]
We divide the figure in the following areas:
 Area of the two upper triangles:
 Area of triangle 1:
 At1 = (1/2) * (3) * (2) = 3
 Area of triangle 2:
 At2 = (1/2) * (6) * (1) = 3
 Area of the complete lower rectangle
 Ar = (9) * (6) = 54
 Area of the lower triangle:
 At3 = (1/2) * (2) * (6) = 6
 The total area of the figure is:
 At1 + At2 + Ar-At3 = (3) + (3) + (54) - (6) = 54
 answer:
<span> the area of this figure is 54 units^2</span>

6 0
4 years ago
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The length of each side of the two congruent sides of an isosceles triangle is 2n + 7 and the length of the third side is 3n. Wr
aliya0001 [1]

Answer:

7n + 14 and 7(n + 2)

Step-by-step explanation:

We know that since our triangle is isosceles, then two of the sides are the same. Given in the problem, we know that these two congruent sides are both 2n + 7. We also know the third side is 3n.

Perimeter is essentially just the sum of the side lengths of the figure. We simply need to add 2n + 7, 2n + 7, and 3n together:

P = 2n + 7 + 2n + 7 + 3n

Combine like terms:

2n + 2n + 3n + 7 + 7

7n + 14

That's one way we can write it. Another way is to factor out the 7:

7n + 14 = 7(7n/7 + 14/7) = 7(n + 2)

Thus, our two expressions are: 7n + 14 and 7(n + 2).

<em>~ an aesthetics lover</em>

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3 years ago
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Solve the system of equations by graphing.
soldier1979 [14.2K]
The answer is (-2,1) or x is -2 and y is 1. You just need to know how coordinate plane works
8 0
3 years ago
WORTH 20pts!! How do i solve this problem??
Sergio [31]
It is 90 degrees because the measure is 90 degrees at the main point and that is what they are asking for!! have a great day
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3 years ago
the world's smallest country is Vatican City it covers 17/100 square mile what is Vatican City area written as a decimal
Marianna [84]
17/100 is the same as 17÷100. 17÷100 =0.17 sqr mile.
OR 17/100, the denominator means what place it is in. The denominator is100, so it's in the hundredth place. 0.17
6 0
3 years ago
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