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Elanso [62]
3 years ago
5

Is talking sound energy

Mathematics
1 answer:
kupik [55]3 years ago
3 0

Answer:yes

Step-by-step explanation:

It Is being ur using energy to talk Too talk to people because when u talk a lot u have to breathe more so u basically need energy Andy oxygen to talk

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Help me find the surface area of this. -10 points so please answer!!!
Varvara68 [4.7K]

Answer:

Step-by-step explanation:

the rectangle side is 9.3 yd.

the front side is 27.9

the back is 26.35

the top is 12.75 and so is the bottom. then add them

9.3 + 27.9 + 26.35 + 12.75 + 12.75

= 89.5 Yards of area space

6 0
3 years ago
Find the 7th term in the<br> sequence<br> -1, 2, -4, 8,...
forsale [732]

Answer:

every other term is negative, so it would be -64

Step-by-step explanation:

hope it helps!

7 0
3 years ago
Cuanto me da como resultado
Likurg_2 [28]

Step-by-step explanation:

1) (-4)^2{\cdot}(-4)

We know that, a^x{\cdot}a^y=a^{x+y}

(-4)^2{\cdot}(-4)=(-4)^{2+1}\\\\=(-4)^3\\\\=64

2) (-2)^5{\cdot} (-2)^3

Again using above property,

(-2)^5{\cdot} (-2)^3=(-2)^8\\\\=256

3) 5^{-3}

We know that,

a^{-x}=\dfrac{1}{a^x}

So,

5^{-3}=\dfrac{1}{5^3}\\\\=\dfrac{1}{125}

4) 2.5^2=2.5\times 2.5\\\\=6.25

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4 0
3 years ago
The polygons in each pair are similar. Find the missing side length.
worty [1.4K]

Answer:

12

Step-by-step explanation:

We can say that two polygons are similar to each other if both of the polygons have the same shape and their corresponding sides are in the same proportion, hence the ratio of their corresponding sides are equal to each other.

As we can see from the problem since both of the polygons are similar, hence the ratio of their corresponding sides are in the same proportion, therefore let x represent the missing length, hence:

\frac{x}{15} =\frac{32}{40} =\frac{32}{40} \\\\\frac{x}{15} =\frac{32}{40} \\\\x=\frac{32*15}{40} \\\\x=12

7 0
4 years ago
Which equation has no solution?
Airida [17]

Answer:  B:  3x + 4 = 3(x - 5)   (has no solution)

Step-by-step explanation:  (these have solutions)

C:        X+ 6 = 6x = 6/5

A:      x + 3 = 5(x+3) = −3

D:        5x + 2 = 4x - 3  =   −5

7 0
3 years ago
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