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slavikrds [6]
2 years ago
7

the width of a rectangle is 8 feet and the diagnal length of the rectangle is 13 feet which measurement is closest to the length

of this rectangle in feet
Mathematics
1 answer:
____ [38]2 years ago
7 0

Answer:

Well the whole answer is 10.246950 smth smth but I don’t have the multiple choices so your gonna have to round yourself

Step-by-step explanation:

Okay so you have a weigh of 8 and a diagonal of 13.

If you look, theres a triangle there. One side has 8 and the diagonal that was cut forms a 13. So we have a leg and a hypotnuse. To find the other leg (length) just follow the Pythagorean theroum and solve for b or a.

Pythagorean theroum: a^2+b^2=c^2

Now subsitute c for 13 since its the hypotnuse and a or b as 8 but only one.

In this case I’m substituting a for 8.

8^2+b^2=13^2

Solve the squares

64+b^2= 169

Isolate the b

b^2=105

Now square root 105

√105 will give the answer above on a normal calculator but if you have to round, I don’t know what place but you can round.

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The aquarium has 3 more yellow fish than green fish. 60 percent of the fish are yellow. How many green fish are in the aquarium?
kompoz [17]

9514 1404 393

Answer:

  6

Step-by-step explanation:

If 60% are yellow, the other 40% are green. Then the difference between yellow and green is 60% -40% = 20% of the total number of fish. That difference also happens to be half of the number of green fish:

  20% = (1/2)(40%)

So, the number of green fish is 2×3 = 6.

_____

If you wanted to, you could write a couple of equations:

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Using the first equation to write an expression for y, we get ...

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Using this in the second equation, we have ...

  g +3 = 0.6(g +3 +g)

  g +3 = 1.2g +1.8 . . . . eliminate parentheses

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6 0
3 years ago
If K is the midpoint of HJ, HK equals x+6, and HJ equals 5x-6, then KJ equals?
Natasha2012 [34]
X + 6 = 5x - 6
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7 0
3 years ago
What is the simplified form of 3(5V3 + 3V3)?
Rasek [7]

Answer:

24 \sqrt{3}

Step-by-step explanation:

3(5 \sqrt{3}  + 3  \sqrt{3} ) \\  \\  = 3(5  + 3 )  \sqrt{3} \\  \\ = 3(8)  \sqrt{3} \\  \\  = 24 \sqrt{3}

8 0
3 years ago
If triangle CBA = triangle CDE, what is the distance between E and C?
omeli [17]

Answer:

c) 10 cm

Step-by-step explanation:

EC = AC

AC = 10 then so does EC

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You will use 220ft of fencing to fence a rectangular plot of land. The length is 20 more than the width. What are the dimensions
dmitriy555 [2]
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