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shusha [124]
2 years ago
9

Can someone help me with this? ​

Mathematics
1 answer:
katrin2010 [14]2 years ago
8 0

Answer:

the answer is 18 cause if u replace it is will give 45 +45 for the angle beside would give u 90

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Can someone help me with this question please.
galina1969 [7]

Answer:

6, 8, and 10.

Step-by-step explanation:

You could work this out with the pythagorean theorem, by proving that 6^2, 36, plus 8^2, 64, equals 100. The fastest way, however, is to use pythagorean triples. These are predetermined sets of numbers that work as side lengths for right triangles. The first two are 3, 4, and 5, which form a right triangle, and 6, 8, and 10, shown here.

5 0
2 years ago
How to find length of sides for right triangle knowing angles?
kifflom [539]
U can use the cosine or sine rules depending on the question/triangle
3 0
3 years ago
which of the following expresses the coordinates of the foci of the conic section shown below? (x-2)^2/4+(y+5)^2/9
elena55 [62]

Step-by-step explanation:

\frac{(x - 2) {}^{2} }{4}  +  \frac{(y + 5) {}^{2} }{9}  = 1

This is the equation of the ellipse. Since the denominator is greater for the y values, we have a vertical ellipse. Remember a>b, so a

The formula for the foci of the vertical ellipse is

(h,k+c) and (h,k-c).

where c is

Our center (h,k) is (2, -5)

{c}^{2}  =  {a}^{2}  -  {b}^{2}

Here a^2 is 9, b^2 is 4.

{c}^{2}  = 9 - 4

{c}^{2}  = 5

c =  \sqrt{5}

So our foci is

(2, - 5 +  \sqrt{5} )

and

(2, - 5 -  \sqrt{5} )

6 0
1 year ago
To which set of numbers does -1/4 belong to?
inna [77]
Real numbers and rational numbers
7 0
2 years ago
Plz help! I will make you the brainliest! Thanks!
Andrews [41]
So to start you will need to divide by -5 then -5 divided by -5 cancelle
4 0
3 years ago
Read 2 more answers
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