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mrs_skeptik [129]
3 years ago
9

Please answer this in two minutes

Mathematics
2 answers:
pav-90 [236]3 years ago
6 0
Answer: 15 sqrt 5

Explanation:

Use tangent formula:

Tan(45) = 15sqrt5/x (x = XY)
15sqrt5 x tan(45) = x

15sqrt5 x 1 = x

15sqrt5 = x
Vsevolod [243]3 years ago
3 0

Answer:

15\sqrt{5}

Step-by-step explanation:

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Please help me :) once again
grigory [225]

Answer:

About 11.31 cm

Step-by-step explanation:

If one of the legs of a right iscosceles triangle is 8, then the length of the other one must also be 8. Therefore, by the Pythagorean Theorem:

h=\sqrt{8^2+8^2}=\sqrt{64+64}=\sqrt{128}\approx11.31

Hope this helps!

7 0
3 years ago
Read 2 more answers
Flora made 7 withdrawals of $75 each from her bank account. What was the overall change in her account ?
qaws [65]
525 dollars 75x5= 525
6 0
3 years ago
Read 2 more answers
I need help
damaskus [11]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
A student solves a problem correctly 40 times out of 72 tries. Based on this data, what is the probability that the student inco
suter [353]

Answer:

The probability of the student incorrectly solves the next problem is 44%.

Step-by-step explanation:

Let E be the event of solving a problem correctly.

Then E' is the event that the problem is solved incorrectly.

Now, recall the definition of probability.

probability of an event = \frac{number of favorable events}{total number of events}

So,

p(E) = \frac{40}{72}

Also,

p(E) + p(E') = 1 and

p(E') = 1 - p(E)

= 1 - \frac{40}{72}

= \frac{72-40}{72}

= \frac{32}{72}

= \frac{4}{9}

= \frac{4}{9} (100)

= 44% rounded.

Hence, the probability of the student incorrectly solves the next problem is 44%.


4 0
3 years ago
A box contains a collection of triangular and square tiles. There are 2525 tiles in the box, containing 8484 edges total. How ma
AnnyKZ [126]
Let us consider the number of edges = x
we know that a triangle will have 3 edges and a square will have 4 edges. Using this details we can form an equation.
3x + 4x = 8484
7x = 8484
x = 8484/7
  = 1212
Then
Number of square tiles = 1212/4
                                     = 303
So there are 303 square tiles in the box. I hope the procedure is clear enough for your understanding. You can always use this method for solving similar problems.
                                                      
5 0
3 years ago
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