3 years ago

The tuning fork is producing a wave that contains compressions and rarefactions. It is a ________ wave.

Mathematics

1 answer:

olga_2 [115]3 years ago

6 0

Sound or vibration wave that is conducted

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-13 is 4 less than a number n

AURORKA [14]

n - 4 = -13

-13 = n - 4

hope that helps

7 0

3 years ago

Seven times the sum of 4 and a number is -14

elena55 [62]

Answer:

Step-by-step explanation:

7*4a=-14

7-7*4a=-14-7

4a=-21

a=-5.25

7 0

3 years ago

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(x+2)(x-3)(x+5) is identical to x^(3)+ax^(2)-11x+b<br> Find the value of a and the value of b

lutik1710 [3]

Answer:

a = 4 and b = - 30

Step-by-step explanation:

Expand the left side and compare like terms on both sides, that is

(x + 2)(x - 3)(x + 5) ← expand the first pair of factors using FOIL

= (x² - x - 6)(x + 5) ← distribute

= x³ + 5x² - x² - 5x - 6x - 30 ← collect like terms

= x³ + 4x² - 11x - 30

Compare like terms with x³ +ax² - 11x + b

4x² and ax² ⇒ a = 4

+ b and - 30 ⇒ b = - 30

3 0

4 years ago

what number is equivalent to the expanded form shown below (2 x 100) + (3 x 1) + (4 x 1/10) + 3 x 1/1,000)

Amanda [17]

(2×100)+(3×1)+(4×1/10)+(3×1/1000)

200+3+0.4+0.003

203.401

Please give me brainliest

5 0

3 years ago

a car travels along a straight line at a constant speedof 60.0 mi/h for a distance d and then another distance d in the same dir

nlexa [21]

Time for entire trip = 2d/30 hours
Time for first part of trip = d/60.
Time for second part of trip, is given by:
$\frac{2d}{30}-\frac{d}{60}=\frac{d}{20}$
Therefore the speed during the second distance d is 20 mi/h.

5 0

4 years ago

Read 2 more answers