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yKpoI14uk [10]
3 years ago
11

GEOMETRY. 20 POINTS. PLEASE DO NOT GIVE STUPID ANSWERS.

Mathematics
1 answer:
sp2606 [1]3 years ago
3 0
Hey there!

A quadrilateral has 360 degrees. So add all the degrees together to 360. 9x+1+5x-12+8x+61+90=360. 90 degrees is in the bottom left corner. Combine like terms. 22x+140=360. Subtract 140 from each side. 22x=220. Divide 22 on each side to get x=10. Plug in 10 for x in angle D. 5(10)-12=38. The measure of angle D is 38 degrees.

I hope this helps!
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4 0
3 years ago
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3 years ago
In a sale the price of a sofa a reduced from £2500 to £1840 what is the percentage decrease
11111nata11111 [884]

9514 1404 393

Answer:

  26.4% decrease

Step-by-step explanation:

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2 years ago
The cake store is having a 25\%25%25, percent off sale on all of its cakes.
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7 0
2 years ago
PLEASE HELP ME I need an answer
son4ous [18]

Just for you beautiful!


Use distance formula: d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

(11,-4) is (x1,y1) and (-12,-4) is (x2,y2)

Plug in and simplify

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d = sqrt(529)

d = 23 (positive because length cannot be negative) ;)

5 0
3 years ago
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