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4 years ago

Which equation would you use to find how high the bird is flying?

Mathematics

1 answer:

damaskus [11]4 years ago

6 0

Answer:

The first one

Step-by-step explanation:

An easy way is SOH CAH TOA

SOH is that you use sine if you there is the opposite (in this case the question mark) and hypotenuse (the diagonal line)

CAH is that you use cosine for the adjacent side (1100) and the hypotenuse.

TOA is using tangent for the opposite and adjacent side.

To fine the question mark, you would use tangent. And plug in the given (1100 for the adjacent). So tan45 = x/1100.

If you need more help or clarification, let me know!

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Is 8 yards graeter than 20 feet

Natasha_Volkova [10]

8 yards is 24 feet, so yes it’s greater

4 0

4 years ago

Read 2 more answers

The perimeter of a rectangular swimming pool is represented by the expression 8x – 2.

sineoko [7]

Im pretty sure your answer would be D, 6x

but tell me if im wrong.

5 0

3 years ago

Expect a ton of trigonometry questions from this account. i know absolutely nothing

Paha777 [63]

Answer:

see attached formulas

Step-by-step explanation:

Math is beautiful. Have fun learning.

8 0

2 years ago

If a scalene triangle has its measures 4 m, 11 m and 8 m, find the largest angle.

soldier1979 [14.2K]

Answer:

129.8 approximately

Step-by-step explanation:

So this sounds like a problem for the Law of Cosines. The largest angle is always opposite the largest side in a triangle.

So 11 is the largest side so the angle opposite to it is what we are trying to find. Let's call that angle, X.

My math is case sensitive.

X is the angle opposite to the side x.

Law of cosines formula is:

$x^2=a^2+b^2-2ab \cos(X)$

So we are looking for X.

We know x=11, a=4, and b=8 (it didn't matter if you called b=4 and a=8).

$11^2=4^2+8^2-2(4)(8)\cos(X)$

$121=16+64-64\cos(X)$

$121=80-64\cos(X)$

Subtract 80 on both sides:

$121-80=-64\cos(X)$

$41=-64\cos(X)$

Divide both sides by -64:

$\frac{41}{-64}=\cos(X)$

Now do the inverse of cosine of both sides or just arccos( )

[these are same thing]

$\arccos(\frac{-41}{64})=X$

Time for the calculator:

X=129.8 approximately

3 0

4 years ago

The dimensions of a rectangle are given in

alexandr1967 [171]

Option A and Option F

The expressions that represent the perimeter of rectangle are 4s + 1 and $2(2s + \frac{1}{2})$

Solution:

From figure,

Length = s

Width = $s + \frac{1}{2}$

The perimeter of rectangle is given as:

perimeter = 2(length + width)

Substituting the values we get,

$perimeter = 2(s + s + \frac{1}{2})\\\\perimeter = 2(2s + \frac{1}{2})$

Thus option F is correct

On further simplification,

$perimeter = 2(2s + \frac{1}{2})\\\\perimeter = 4s + 2(\frac{1}{2})\\\\perimeter = 4s + 1$

Thus Option A is correct

3 0

3 years ago