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Anarel [89]
3 years ago
6

Does anyone know how to do 1 and 2? i suck at trigonometry.

Mathematics
1 answer:
Paul [167]3 years ago
8 0

Answer:

Step-by-step explanation:

Here's the answers I got. Sorry super busy at school ahh

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Pleaseee helppppppp!!
marissa [1.9K]

Answer:

AED means the entire angle

I AEB is 29 degrees and BEC is 12 degrees, the 29+12=41 degrees.

x=89-41

x=48 degrees

hope it helps :)

8 0
3 years ago
Read 2 more answers
the ratio of horses to chickens on a farm is 9:4. If there are a total of 169 animals, how many chickens are on the farm?
Evgesh-ka [11]

Answer:

<h2> 52 chickens</h2>

Step-by-step explanation:

Step one:'

given

we are told that the total number of animals is 169

the ratio of horses to chickens= 9:4

total ratio= 13

Required:

number of chickens

Applying part to all principle, let the number of chickens be x

4/13=x/169

cross multiply

4*169=13*x

divide both sides by 13

x=4*169/13

x=676/13

x=52

There are 52 chickens

6 0
3 years ago
9y+11z+7y−4z
slava [35]
Answer is <span>16y + 7z

</span><span><span><span><span>9y</span>+<span>11z</span></span>+<span>7y</span></span>−<span>4z

</span></span><span>=<span><span><span><span><span>9y</span>+<span>11z</span></span>+<span>7y</span></span>+</span>−<span>4z

</span></span></span>Combine Like Terms:

<span>=<span><span><span><span>9y</span>+<span>11z</span></span>+<span>7y</span></span>+<span>−<span>4z

</span></span></span></span><span>=<span><span>(<span><span>9y</span>+<span>7y</span></span>)</span>+<span>(<span><span>11z</span>+<span>−<span>4z</span></span></span>)

</span></span></span><span>=<span><span>16y</span>+<span>7z</span></span></span><span>
</span>
7 0
3 years ago
Use the unit fractions 36in./1yd and 2.54 cm/1in. Convert 11 yd to cm.
madam [21]

Answer:

1,005.84 cm

Step-by-step explanation:

Given the unit fractions, 36 in/1 yd (i.e. 36 inches = 1 yard), and 2.54 cm/1 in (i.e. 2.54 cm = 1 inches), to convert 11 yd to cm, first convert to inches, then convert what you have in inches to cm.

Thus:

Converting 11 yd to inches:

36 in = 1 yd

11 yd = 36*11 = 396 in

Converting 396 in to cm:

2.54 cm = 1 in

396 in = 2.54*396 = 1,005.84 cm

5 0
3 years ago
A buoy oscillates in simple harmonic motion y= A cos cos as waves move past it. The buoy moves a total of 3.5 feet (vertically)
NNADVOKAT [17]

Answer:

a) y = 1.75 ft cos (\frac{\pi}{5}t)

b) v(t) = -1.0995 sin (\frac{\pi}{5}t)

Step-by-step explanation:

Part a

Since the buoy oscillates in simple harmonic motion the equation to model this is given by:

y = A cos (wt +\theta)

For this case from the info given we know that:

2A = 3.5 , A = \frac{3.5}{2}= 1.75 ft

"It returns to its high point every 10 seconds." That means period =10 T =10s, and the angular frequency can be founded like this:

w = \frac{2\pi}{10}= \frac{\pi}{5}

Assuming that the value for the phase is \theta =0 our model equation is given by:

y = 1.75 ft cos (\frac{\pi}{5}t)

Part b

From definition we can obtain the velocity with the derivate of the position function and if w calculate the derivate we got this:

\frac{dy}{dt}= v(t) = -1.75 ft (\frac{\pi}{5}) sin (\frac{\pi}{5}t)

v(t) = -1.0995 sin (\frac{\pi}{5}t)

6 0
3 years ago
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