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4 years ago

What is the wavelength of a 320 Hz sound traveling 330 m/s?

Mathematics

1 answer:

maw [93]4 years ago

8 0

Answer:1.03125 meter

Step-by-step explanation:

Velocity =330 meter per second

Frequency =320 Hertz

wavelength=velocity ➗ frequency

Wavelength=330 ➗ 320

Wavelength=1.03125 meter

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Help! Show steps please! I NEED THE STEPSSS

NemiM [27]

Answer:

$-\frac{4}{3}$

Step-by-step explanation:

We're trying to make the coefficient of $x$ 1, so that we can have x is equal to something.

We'll find the required number:

$\frac{1}{-\frac{3}{4}}\\\\=1*(-\frac{4}{3})\\\\=-\frac{4}{3}$

We'll check this works: $-\frac{3}{4}*(-\frac{4}{3})=1$ .

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3 years ago

Arianna is packing scented candles and candle holders into gift boxes. She has 84 candles and 48 holders, and each box must cont

Sholpan [36]

The answer is A

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3 years ago

Answer 5 questions on the bottom right side.

madreJ [45]

Answer:

1)m<ABH=121°

2)m<GDF=59°

3)X=35

4)m<ABC=59°

5)m<EDA=59°

Step-by-step explanation:

1. You want to find X, so since the two expressions are Alternate Interoir Angles they equal each other

5x-54=3x+16

5x-3x-54=3x-3x+16

2x-54=16

2x-54+54=16+54

2x=70

2x/2=70/2

X=35

2. Now plug in X to each equation to test if it works

5(35)-54=3(35)+16

175-54=105+16

121=121

3. Now replace the two expressions with 121

4. Let's begin with <ABH. Since <ABH is verticle to 3x+16 they equal each other.

5. <GDF is right next to 5x-54 and they're on the same line meaning they equal 180°. So 180-121=59, this is also the reasoning with <EDA with 5x-54 and <ABC with 3x+16

NOTE: THIS ONLY IS TRUE IF LINE HC AND LINE GE ARE PARALLEL.

6 0

3 years ago

Please assist me with these problems and show the work: Part 2 6. The angle of elevation of the sun is 68° when a tree casts a s

Novay_Z [31]

Answer: 6) 35 meters 7) Ф = 10°

<u>Step-by-step explanation:</u>

$6.\quad \tan\ 68^o=\dfrac{x}{14.3}\\\\\\.\quad 14.3 \tan\ 68^o=x\\\\.\quad 35\ meters =x$

$7.\quad \sin \theta =\dfrac{0.7}{4.2}\\\\\\.\qquad \quad \theta=\sin ^{-1}\bigg(\dfrac{1}{6}\bigg)\\\\\\,\qquad \quad \theta =10^o$

3 0

4 years ago

Read 2 more answers

In ΔEFG, the measure of ∠G=90°, EF = 38 feet, and FG = 30 feet. Find the measure of ∠F to the nearest degree.

Mamont248 [21]

Answer:

∠F = 42° to the nearest degree

Step-by-step explanation:

In this question, we are asked to calculate the value of the angle.

Kindly note that since one of the angles we are dealing with in the triangle is 90°, this means that the triangle is a right-angled triangle

Please check attachment for the diagrammatic representation of the triangle

From the diagram, we can identify that the EF is the hypotenuse and the length FG is the adjacent. Thus , the appropriate trigonometric identity to use is the cosine

mathematically;

Cosine of an angle = length of adjacent/length of hypotenuse

$Cos F = \frac{30}{38}\\Cos F = 0.7895\\F = Cos^{-1} 0.7895\\$

F = 42.07

∠F = 42° to the nearest degree

4 0

3 years ago

Read 2 more answers