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const2013 [10]
3 years ago
8

Plz help I’ll mark brainliest

Mathematics
2 answers:
timurjin [86]3 years ago
7 0

Answer:

Step-by-step explanation:

Using Pythagoras Theorem, hypotenuse = 5

h = \sqrt{a^{2}+ b^{2}

h = \sqrt{9+16 }\ = \sqrt{25}\ = 5

sin x = height / hypotenuse = 3 / 5

cos y = base / hypotenuse = 3 / 5

sin x = cos y = 3 / 5

V125BC [204]3 years ago
3 0
Ok the answer is Sin x cos y=5
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John cut a paper square with a perimeter of 18 inches into two rectangles. The perimeter of one of the rectangles is 10 inches.
Lady_Fox [76]

Answer:

13.5 inches

Step-by-step explanation:

Perimeter of the paper square = 18inches

Perimeter of a square = 4s

4s = 18 inches

s = 18/4 = 4.5 inches

Therefore, each side of the square = 4.5 inches.

When the square is cut into 2 rectangles,

The perimeter of one of the rectangles is 10 inches.

Perimeter of the second rectangle = 2L + 2W

Let the length of the rectangle (L) = one side of the square = 4.5 inches

Width of the Rectangle = Length of the square/2 = 4.5 inches/ 2 = 2.25

Perimeter of the second rectangle = 2(4.5) + 2(2.25)

= 9 + 4.5

= 13.5 inches

4 0
3 years ago
OLYMPICS The number of men and women participating in the Winter
Nadusha1986 [10]

Answer:I can’t see the rest.

Step-by-step explanation:

4 0
3 years ago
A plane is flying at 32, 460 feet. To avoid some turbulence, the plane ascends 1645 feet. It then descends 3/5 of its new height
aleksley [76]

Answer: C and E

Step-by-step explanation:

The plane starts at 32,460 feet.

It then ascends 1645 feet. Ascending means it's going up higher. So we add.

32,460 + 1645 = 34,105 (C)

From here (34,105 feet) the plane descends by 3/5 of it's height. Descending means it's lowering. So we subtract.

But first we have to figure out how much we are subtracting.

3/5 is equal to .6

Multiply to find 3/5 of current height.

34,105 × .6 = 20,463

So the plane descends by 20,463 feet.

34,105 - 20,463 = 13,642 feet (E)

3 0
4 years ago
PLZ HELP ME
Nat2105 [25]
You need at least 2 congruent angles , or 3 proportional sides , or 2 proportional sides and 1 congruent angle to prove that 2 triangles are similar.
I presume that there should be a picture attached to this question , but if you only have 1 side in proportion ( x ) , you cannot prove the similarity of two triangles.

But if there already were two proportional sides or 1 proportional side and one congruent angle , you can prove they are similar if x = 48

Hope it helps
7 0
3 years ago
Read 2 more answers
Danielle wants to translate triangle XYZ so that vertex Y is moved from coordinates (-
ira [324]

Answer:

We need to use the mapping U'(x,y) = (x+4,y-5) to find the new coordinates of X and Y.

Step-by-step explanation:

Vectorially speaking, we must look for the defintion of the translation operation such that vertex Y becomes vertex Y', which is represented by:

T(x,y) = Y'(x,y) - Y(x,y) (1)

Where T(x,y) is the translation vector.

If we know that Y(x,y) = (-4,2) and Y'(x,y) = (0,-3), then the translation vector is:

T(x,y) = (0,-3)-(-4,2)

T(x,y) = (4, -5)

If U(x,y) = (x,y), T(x,y) = (4, -5) and U'(x,y) is the translated vector, then we obtain the following definition:

U'(x,y) = U(x,y) +T(x,y) (2)

U'(x,y) = (x,y) + (4,-5)

U'(x,y) = (x+4,y-5)

The correct answer is B.

3 0
3 years ago
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