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Bumek [7]
3 years ago
13

When naming congruent triangles, the order of the letters does not matter.

Mathematics
1 answer:
shusha [124]3 years ago
7 0
Your answer will be true
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What is the simplified form of the expression 11[6^2/(5^2-4^2)+7]
earnstyle [38]

Answer:

  121

Step-by-step explanation:

A calculator can answer this for you.

_____

Following the steps of the <em>order of operations</em>, you evaluate inner parentheses first. The exponents are the first to be evaluated there.

  11[6^2/(5^2-4^2)+7]

  = 11[6^2/(25 -16)+7]

  = 11[6^2/9 +7]

Then you do the exponent ...

  = 11[36/9 +7]

Now you do the division ...

  = 11[4 +7]

And finally, you can finish up the outer parentheses ...

  = 11·11

  = 121

4 0
3 years ago
At the market, 5 light bulbs cost $9. How much do 7 light bulbs cost?
Rudiy27
Hello!

To solve this, find the cost of a single light bulb first, by dividing 9 / 5.

9 / 5 ==> 1.80

One light bulb is $1.80

Now, multiply 1.80 by 7.

1.80 * 7 = 12.6

7 light bulbs cost $12.6

Hope this helps! ☺♥


6 0
4 years ago
Read 2 more answers
If the length of a rectangle is 3 feet less then twice its width and the area is 54square feet what are its dimensions
erma4kov [3.2K]
The length (L) of the rectangle can be written as a function of the width (W)L = 2W - 3:
Now since we know Area = Width*Length, we can write the area as a function of the width:
A = L*W = (2W-3)*W
Distributing the W inside the parentheses we have:
A = 2W^2 - 3W
We know the area is 54 ft^2, so we can rewrite it as:
2W^2 - 3W - 54 = 0
Now solve for W by factoring (or by applying the quadratic formula):
2W^2 - 12W + 9W - 54 = 0
Factor out a common 2W from the first two terms and a 9 from the last two terms:
2W(W-6) + 9(W-6) = 0
Regroup the terms to get our fully factored equation:
(2W + 9)(W-6) = 0
This gives us the roots W = 6 and W = -9/2, but width can't be negative so we have width = 6 ft. Then remember that the length L = 2W - 3, so our length is:
L = 2W - 3 = 2(6) - 3 = 12 - 3 = 9
So now we know that our rectangle is 9 feet long and 6 feet wide.
5 0
4 years ago
Audrey and David are reading the same book.
DIA [1.3K]

Answer: C.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Factor the expression completely -20x -40
Alenkasestr [34]
X=2
 

its x=2 because you have to divide -20x by -40 so the two negatives cancel out each other and then you get 2.
6 0
3 years ago
Read 2 more answers
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