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Nostrana [21]
3 years ago
10

Just please help me, im trying to cram multiple things at once (house is crazy) and I just cant seem to concentrate and understa

nd these.

Mathematics
2 answers:
Anastasy [175]3 years ago
5 0
Y=31.2
X=15.6

I rounded both to the nearest tenth place.
nikdorinn [45]3 years ago
3 0

Answer:

Step-by-step explanation:

here is how you find the answer

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

now apply the above rules to the given triangle

where we are given the angle of 30°  and the Adj side of 27

y is the Hyp of this triangle and x is the Opp side of this triangle, now plug in the given values  as follows

so use CAH   Cos(30) = 27 / Hyp

Hyp = 27 / Cos(30)

Hyp = 27 / (\sqrt{3} / 2)

Hyp = 27 * 2 /  \sqrt{3}

Hyp = 54 / \sqrt{3}

y = 54 / \sqrt{3}

use SOH, since we know the exact value for the Hyp from above

Sin(30) = Opp / ( 54 / \sqrt{3}  )

Sin(30) * 54 / \sqrt{3}  = Opp

1/2 * 54 / \sqrt{3}  = Opp

27 / \sqrt{3}  = Opp

x = 27 / \sqrt{3}

:)

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Step-by-step explanation:

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3 years ago
Car A and car B are traveling at different speeds. Car A can travel 175 miles in the same time it takes car B to travel 125 mile
slega [8]

Answer:

The speed of car B is 50 mile per hour

Step-by-step explanation:

Given as :

The Distance travel by car A = 175 miles

The Distance travel by car B = 125 miles

The Time taken by both car A and B is same = T hours

Let The speed of car B = S mile per hour

So, The speed of car A = ( S + 20 ) mile per hour

Now, Time = \frac{Distance}{Speed}

So , For Car A ,

T = \frac{175}{(S + 20 )}

For Car B ,

T = \frac{125}{(S}

So, \frac{175}{(S + 20 )}  = \frac{125}{(S}

Or, 175 × S = 125 × ( S + 20 )

Or, 175 S - 125 S = 125 × 20

Or, 50 S = 2500

∴  S = \frac{2500}{(50}

I.e S = 50 mph

And S + 20 = 50 + 20 = 70 mph

The speed of car A = 70 mph

The speed of car B = 50 mph

Hence The speed of car B is 50 mile per hour  Answer

8 0
3 years ago
Garrett wants to make a circular pond in his yard and put a low fence around the edge. What is the largest area pond Garrett can
Black_prince [1.1K]

Answer:

The answer is C. 1472.61 square feet

Step-by-step explanation:

If you are familiar with Pi (π) you can do a lot of fun stuff with math.

Let's review some values:

A = Area, C = circumference, r = radius, π = 3.14159 (commonly rounded off to 3.14).

You might already know that the area of a circle can be calculated with the formula A = π r2  (pi r squared).

However, we do not know the radius in this instance so this formula isn't going to work for us.

Let's try a different way.

We do know the circumference. The circumference is simply the length of the fencing, 136 feet.

So we'll use this formula:

A = C2 / 4π

C2 is 136 x 136, or 18,496. Don't be scared off by this huge number; we're going to whittle it down.

4π = 12.56

18,496/12.56 (or 18,496 divided by 12.56) = 1472.61

Wasn't that fun?

3 0
3 years ago
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