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2 years ago

Striking a tuning fork harder makes the sound coming from the fork louder. This changes the _________ of the sinusoidal graph.

Mathematics

1 answer:

Vera_Pavlovna [14]2 years ago

3 0

Answer:

Amplitude.

Step-by-step explanation:

Loudness of a sound wave is proportional to its amplitude of vibration.

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Simplify -4(x-5) +3(a-7)

PilotLPTM [1.2K]

Answer:

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right.

Step-by-step explanation:

-4x + 20 +3a - 21

3a - 4x - 1

6 0

2 years ago

Factor the polynomial completely

aliina [53]

We have $2x^2-8$ .

First let us factor the 2 to obtain,

$2(x^2-4)$

We can now see clearly that the expression inside the parentheses is a difference of two squares.

We now write the 4 as 2². So that we obtain the expression,

$2(x^2-2^2)$

Recall that

$a^2-b^2=(a+b)(a-b)$

Hence our expression becomes,

$2(x+2)(x-2)$

Therefore, when factored completely,

$2x^2-8=2(x+2)(x-2)$

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=b%5E%7B2%7D%20%2B8b%2B7" id="TexFormula1" title="b^{2} +8b+7" alt="b^{2} +8b+7" align="absmidd

Ann [662]

The answer really depends on what b is. Unless you give me a number for what b equals I can’t solve it.

5 0

2 years ago

An ice cream cone is filled with vanilla and chocolate ice cream at a ratio of 2:1. If the diameter of the cone is 2 inches and

Sophie [7]

Volume of cone=(1/3)hpir^2

d/2=r
d=2
d/2=2/2=1=r
h=6

V=(1/3)6pi1^2
V=2pi in^3 is volume

ratio of 2:1

2+1=3
2pi=3 units
divide both sides by 3
2/3pi=1 unit

vanila=2 units
times 2/3pi by 2
4/3pi
aprox pi=3.141592
4.188
round
4.2 in^3 of vanilla

3 0

3 years ago

Read 2 more answers

Branden and Pete both play running back. Branden carries the ball 75 times for 550 yards and Pete had 42 carries for 380 yards w

mars1129 [50]

Answer:

Pete runs farther per carry.

Step-by-step explanation:

Given:

Branden and Pete both play running back.

Branden carries the ball 75 times for 550 yards.

Pete had 42 carries for 380 yards

Question asked:

Who runs farther per carry ?

Solution:

First of all we find each boy's distance covered per carry:-

<u>For Branden</u>

Branden carries the ball 75 times for = 550 yards.

Branden carries the ball 1 time for = $\frac{550}{75} =7.34\ yard$

Pete carries 42 times for = 380 yards

Pete carries 1 time for = $\frac{380}{42} =9.05\ yards$

As Pete runs 9.05 yards for 1 carry while Branden runs 7.34 yards for 1 carry, hence Pete runs farther per carry.

3 0

2 years ago