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Nana76 [90]
4 years ago
5

Find the area of the trapezoid

Mathematics
2 answers:
Alina [70]4 years ago
8 0

Answer:

c/third answer

Step-by-step explanation:

Len [333]4 years ago
6 0

Answer:

A = 268.707^2

Answer 4th one. 144+72√ 3

Step-by-step explanation:

We make 2 triangles at lowest point R= 30 /2 = 15 degree

15+ 135- from 180 = 30

P= 60 Q=135 S =135 and R= 30

1/2 of 30= 15 degree

To prove 180 for P,Q,R side triangle 30 + 135 + 15 = 180.

To prove 180 for P,S,R side triangle 30 + 135 + 15

Which confirms P = 60

We use trigonometry sides measure 18+24  and choose the base 18 for Sin x 2 angles.

(18)\ sin 15 x 135 =-9+9sqr3 / 2 =  3.2944228634 and divide 90 / 3.2944228634 =27.31889734 for the diagonal

We look for the height = 17.71

We look for area

=27.31889734 x  17.71 = 241.9088359

A = 241.90 units^2 closest to 144+72√ 3

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Genrish500 [490]
You lost minus when you were adding two equations.
-176= - 22x -12y
<span>144 =      6x   +12y
</span>-32= - 16x
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Check:
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8 0
4 years ago
Which of the following expressions are equivalent to 6.53 - (-4.11) + 7.926.53?
umka21 [38]

Answer:

Choice B and Choise C.

Step-by-step explanation:

Equivalent expressions are those expressions that have the same value but they look different.

Given the following expression provided in the exercise:

6.53 - (-4.11) + 7.92

You need to remember the multiplication of signs in order to find the equivalent expressions:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

Then:

- Eliminating the parentheses, you get this equivalent expression:

6.53 +4.11 + 7.92

- Since the mulplication of two negative signs gives yous a positive sign, you can rewrite the original expression in this form:

-(-6.53)+4.11-(-7.92)

This is an equivalent expression to 6.53 - (-4.11) + 7.92

8 0
3 years ago
Need answers for Question 8 and 9
Advocard [28]

number 8 is C i think

6 0
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