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Fofino [41]
3 years ago
5

What is m 2DEC? In square ABCD, we know: AB = 6 and BE = 4.2

Mathematics
1 answer:
Alex787 [66]3 years ago
3 0

Answer:

As mentioned ABCD is a square

So <DEC is always 90 degree

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Please help with a math problem. Please explain how you got the answer
Studentka2010 [4]

Answer:

Their sum is 140.   The measure of an exterior angle is supplementary to the respective interior angle.

Step-by-step explanation:

Since the angle are on a straight line, m2 and 140 sum to 180.

So m2=40. Because a triangle has 180 degrees, m1 and m3 must sum to 140.

The exterior angle is always on the same incline as the interior angle, so it is always supplementary to the interior angle.

7 0
3 years ago
Find the value of x in the isosceles triangle shown below.​
dybincka [34]

USING PYTHAGORAS THEORAM,

x²+3²= 5²

x²+9= 25

x²= 25-9 = 16

x= √16

x= 4

OPTION D

6 0
2 years ago
A pair of pants with a marked price of $35.00 has a discount of 20%. How much is the discount? Can someone help me learn to do p
andreyandreev [35.5K]
When you see a "%" you need to ask " a percent of what"?

Here, it's a percent of the original prize, so the discount is 20% of the original prize, that is 20% of 35.

20% is also 20/100 or 1/5, so we can calculate this like this:

\frac{1}{5} *35=7

so the discount is 7 dollars.
6 0
3 years ago
A furniture store bought a couch for $425 and marked the price up by 70%. Angela bought the couch with a 6% tax. How much did An
Tomtit [17]

Answer:Angela paid 679,05 for the couch

Step-by-step explanation:

 425*70/100=29.750

29.750/100= 297,5

297,5+425=722,5

722,5*6/100=4.335/100=43,45

722,5-43,45=679,05

8 0
3 years ago
Read 2 more answers
The point P(-6, -6) is reflected over the x-axis. What are the coordinates of the resulting
Fed [463]

Answer:

It would be (6,-6)

Step-by-step explanation:

Hope this helps.

7 0
3 years ago
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