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Ber [7]
3 years ago
6

1. Draw a triangle ABC with A(6,10), B(7,6), and C(10,7).

Mathematics
1 answer:
Musya8 [376]3 years ago
8 0

Answer:

I dont know yet give me a sec

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​Parallelogram ABCD​ is a rectangle. AC=2y+7 BD=3y−4 What is the value of y?
Liono4ka [1.6K]

Answer:

You didn't attach an image so I will assume that AC and BD are opposite sides. In a parallelogram, opposite sides are congruent which means:

2y + 7 = 3y - 4

-y = -11

y = 11

7 0
3 years ago
What are the first, second, and third frequencies audible from a 20 cm long organ pipe when (A) only one end is open and when (B
kotykmax [81]
A) The answers are:
the first frequency - 428.75 Hz
the second frequency - 1286.25 Hz
the third frequency - 2143.75 Hz

The frequency (when the pipe is closed) is: f = v(2n - 1)/4L
v - the speed of sound
n - the frequency order
L - the length of the organ pipe

We know:
v = 343 m/s
L = 20 cm = 0.2 m

1. The first frequency (n = 1):
f = 343 * (2 * 1 - 1) / 4 * 0.2 = 343 * 1 / 0.8 = 428.75 Hz


2. The second frequency (n = 2):
f = 343 * (2 * 2 - 1) / 4 * 0.2 = 343 * 3 / 0.8 = 1286.25 Hz


3. The third frequency (n = 3):
f = 343 * (2 * 3 - 1) / 4 * 0.2 = 343 * 5 / 0.8 = 2143.75 Hz


B) The answers are:

the first frequency - 857.5 Hz
the second frequency - 1715 Hz
the third frequency - 2572.5 Hz

The frequency (when the pipe is open) is: f = vn/2L
v - the speed of sound
n - the frequency order
L - the length of the organ pipe

We know:
v = 343 m/s
L = 20 cm = 0.2 m

1. The first frequency (n = 1):
f = 343 * 1 / 2 * 0.2 = 343 / 0.4 = 857.5 Hz


2. The second frequency (n = 2):
f = 343 * 2 / 2 * 0.2 = 686 / 0.4 = 1715 Hz


3. The third frequency (n = 3):
f = 343 * 3 / 2 * 0.2 = 1029 / 0.4 = 2572.5 Hz
4 0
3 years ago
wires are attached to a pole to make it more secure. the diagram shows one of those wires having a length of 220 feet the angle
MariettaO [177]
In(36)=h/220ft
220ftsin(36) = h
h=129.3 ft
7 0
3 years ago
Read 2 more answers
You LOVE Cheetos and Takis. They’re your favorite food of all time and you feel like you could live on eating nothing but Cheeto
Mamont248 [21]

Answer:

15 takis and 10 cheetos

Step-by-step explanation:

($15x10=$150) + ($40x15=$600) = $750

5 0
2 years ago
Write the ratio as a fraction in simplest form, with the whole numbers In the numerator and denominator. 1.4L : 4.9 L
lidiya [134]
1.4L : 4.9L
= \frac{1.4}{0.7} L:\frac{4.9}{0.7}L
=2L : 7L
8 0
3 years ago
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