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victus00 [196]
3 years ago
15

Will give brainliest!!

Mathematics
2 answers:
labwork [276]3 years ago
6 0

Answer:

DE = 12cm

Step-by-step explanation:

It's free real estate

Lubov Fominskaja [6]3 years ago
6 0
I think it’s F:) I think I’m not sure
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HELPPPPPP MEEEEE<br><br> y=6x-1<br><br> and -2x-3y=-2 <br><br><br> USING SUBSTITUTION
bazaltina [42]
Answer:
 x = 4 
y =23 

work:
 plug in the value of Y to -2x-3y=-2. -2x - 3(<span>6x-1) = -2
 
multiply 3 and the numbers in parenthesis. -2x -18x - 3 =-2
combine like terms (-2x -18x). -20x - 3 = -2
subtract 3 from both sides to isolate the variable. -20x = -5 
divide to isolate the variable (-20/-5) x = 4
-
now that we know the value of x, it'll be easy to find Y.
Plug it in to the first equation.
</span><span>y=6(4)-1
</span>y = 24 - 1
y = 23

so x = 4 
and y = 23 

hope this helps! :D
7 0
4 years ago
a 40-foot ladder leans outside against a the cafeteria. The ladder’s base is 20 feet from the cafeteria. To the nearest degree,
eimsori [14]

Answer:

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Step-by-step explanation:

We use trigonometry of a right angled triangle:

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cos x = adjacent / hypotenuse = 20/40 = 1/2

x = 60 degrees.

4 0
3 years ago
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