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LiRa [457]
3 years ago
11

Whats the answer? 30 pts

Mathematics
2 answers:
mestny [16]3 years ago
5 0
I’m pretty sure it’s -845
cupoosta [38]3 years ago
3 0

Answer:

- 405

Step-by-step explanation:

step 1.multiply the numbers

-22×13= -286

step 2. remove parenthesis

-118-286

step 3. calculate -405

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How do I find the perimeter of these regular polygons when only given the area. PS only allowed to use a=1/2bh formula, no other
timama [110]

Answer:

7. 25 and 8. 18. I think it is. I hoped that is was right.

Step-by-step explanation:

150/6=25. 90/5=18.

7 0
3 years ago
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hichkok12 [17]

Answer:

The coordinates of C(22/3, 7)

Step-by-step explanation:

Partitioning between two points A and B in the ratio a:b.

The x-coordinate of the point of partition C is found at

XC = XA*(b/(a+b)+XB(a/(a+b) ..............(1)

Similarly, the x-coordinate of the point of partition is found at

YC = YA*(b/(a+b)+YB(a/(a+b)...............(2)

Given A(8,8), B(4,2), partition ratio of A:B = 1:5,

substitute in (1)

XC = 8*5/6+4*1/6 = 44/6 = 22/3

YC = 8*5/6 + 2*1/6 = 42/6 = 7

The coordinates of C(22/3, 7)

7 0
3 years ago
Quadrilateral ABCD ​ is inscribed in this circle.
Alecsey [184]
The sum of all interior angles in a polygon is

180(n-2), where n = sides, well, this is a QUADrilateral, so it has 4 sides, so the total is 360°.

now, let's find what angle C is first,

\bf \stackrel{A}{(2x-40)}+\stackrel{B}{(116)}+C+\stackrel{D}{(x)}=360\implies C+3x+76=360
\\\\\\
C+3x=284\implies C=284-3x

now, recall the "inscribed quadrilateral conjecture", where opposite angles are "supplementary angles", thus

\bf \stackrel{\measuredangle A}{(2x-40)}+\stackrel{\measuredangle C}{(284-3x)}=180\implies -x+244=180
\\\\\\
64=x\\\\
-------------------------------\\\\
\measuredangle A=2(64)-40
8 0
3 years ago
Read 2 more answers
Write an expression in simplest form for the area of a square with a side of 9ab units
nikitadnepr [17]
(9ab)^2

U R WHALECUM :3
7 0
3 years ago
(3n^2+13n^3+5n)-(7n+4n^3)
Fantom [35]

Answer: n*(3n+2)*(3n-1)

Step-by-step explanation:

4 0
3 years ago
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