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wlad13 [49]
3 years ago
14

The length of the hypotenuse of 30-60-90 triangle is 5. find the perimeter

Mathematics
1 answer:
baherus [9]3 years ago
4 0

Answer:

7.5+2.5\sqrt{3}

Step-by-step explanation:

The ratio of sides in a 30-60-90 triangle is 1:2:\sqrt{3}. Since the hypotenuse is the longest side, the shortest leg is 5/2=2.5. The leg that would usually be \sqrt{3} is now 2.5\sqrt{3}\approx 4.33. Adding all of these together, you get 7.5+2.5\sqrt{3}\approx 11.83. Hope this helps!

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When x is decreased by 129 and then that number is multiplied by 129, the result is 129. What is the value of x?
myrzilka [38]

Answer:

Step-by-step explanation:

twice the difference of a number and 3 is added to 4

4 0
3 years ago
The product of a binomial and a trinomial is x3+3x2-x+2x2+6x-2 Which expression is equivalent to this
solong [7]
The answer is the first one.
Explanation:
X^3 stays the same because there are no other cubed numbers in the problem
Next you combine the x^2s
The x^2s are +3x^2 and +2x^2
Since they are both positive, you add them: 3x^2 + 2x^2 = 5x^2
Next you do the x values
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8 0
3 years ago
2
Daniel [21]

Answer:

Step-by-step explanation:

P = (-4, 3)

Reflecting across the y axis negates the x value

P₁ = (4, 3)

Reflecting across the x axis negates the y value

P' = (4, -3)

option D

4 0
3 years ago
Can you please help with this question about exponential equations?
RSB [31]

Since t represents the number of years passed since 2005, in 2005 we have t=0, and in 2015 we have t=10. Let P_J(y),P_D(y) represent the profits of Jones and Davis, respectively, at year y.

We have

P_J(2005) = 10(0.99)^0 = 10,\quad P_J(2015) = 10(0.99)^{10}\approx 9

P_D(2005) = 8(1.01)^0 = 8,\quad P_D(2015) = 8(1.01)^{10}\approx 9

Choosing the best company somehow depends on how much time you can wait: Jones start with a higher value (10 vs 8), but it has a descending trend, because the multiplicative factor 0.99^t goes to zero as t grows.

On the other hand, Davis starts with a smaller value, but 1.01^t tends to infinity as t grows.

So, if you need an immediate result, the most valuable company is Jones, otherwise you're certain can Davis will eventually become bigger.

More precisely, we have

8\cdot 1.01^t = 10\cdot 0.99^t \iff 0.8 = \left(\dfrac{0.99}{1.01}\right)^t \iff t\approx 11

So, after 11 years, Davis will overcome Jones.

3 0
3 years ago
Here’s the diagram go to questions for 1st question
Elodia [21]

Answer: bru stop

Step-by-step explanation:bru stop

7 0
3 years ago
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