PLEASE HELP ITS EASY!!!!!!!!!

Mathematics

2 answers:

eduard4 years ago

6 0

#1 This isn't mathematics its Science

#2 I would personally say false because we can repeat a song there fore creating the same movement - vibration. Heat is also something that could be the same again. Like setting the thermostat in a home, apartment, or work place

#3 Don't hold me to #2 because I can see both sides being argued #1 is definitely right lol!

Wittaler [7]4 years ago

5 0

This is False information hope this helps

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Donna bought 5 bags of dog treats for $10.90. What is the cost per bag of dog treats? A. $0.46 B. $2.73 C. $15.90 D. $2.18

Juliette [100K]

Answer: $2.18

Step-by-step explanation:

You are trying to solve for the cost of one bag or unit cost. Take

the amount of money spent and divide it by the number of bags

purchased.

10.90 ÷ 5 = 2.18

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3 years ago

7-18 use part 1 of the fundamental theorem of calculus to find the derivative of the function.

blondinia [14]

$\displaystyle h(x)=\int\limits_{1}^{\sqrt{x}}~\cfrac{z^2}{z^4+1}dz~\hspace{10em}\cfrac{dh}{du}\cdot \stackrel{chain~rule}{\cfrac{du}{dx}\implies \cfrac{dh}{dx}} \\\\[-0.35em] ~\dotfill\\\\ u=\sqrt{x}\implies \cfrac{du}{dx}=\cfrac{1}{2\sqrt{x}} \\\\[-0.35em] ~\dotfill$

$\cfrac{dh}{dx}\implies \displaystyle \cfrac{d}{du}\left[ \int\limits_{1}^{u}~\cfrac{z^2}{z^4+1}dz \right]\cdot \cfrac{1}{2\sqrt{x}}\implies \left[ \cfrac{u^2}{u^4+1} \right]\cdot \cfrac{1}{2\sqrt{x}} \\\\\\ \stackrel{substituting~back}{\left[ \cfrac{(\sqrt{x})^2}{(\sqrt{x})^4+1} \right]\cdot \cfrac{1}{2\sqrt{x}}}\implies \cfrac{x}{x^2+1}\cdot \cfrac{1}{2\sqrt{x}}\implies \cfrac{\sqrt{x}}{2x^2+2}$

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2 years ago

For each fraction, decimal, or percent, write the equivalent number from the list below. 0.68, 19/50, 9/20, 80%, 0.54. A. 38% __

inn [45]

Answer:

A. 38% - 19/50
B. 4/5 - 80%
C. 17/25 - 0.68
D. 27/50 - 0.54
E. 0.45 - 45% or 9/20

Step-by-step explanation:

A. 19/50 - 38/100 - 38%
B. 4/5 - (times by 20 (the numerators and denominators)) - 80/100 - 80%
C. 17/25 - (times by 4 (the numerators and denominators)) - 0.68

D. 27/50 - 54/100 - 0.54
E. 0.45 - 45/100 - 9/20 - 45%

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3 years ago

The fraction 9/15 is an equivalent fraction of 6/20 1/2 3/5

Mama L [17]

Answer:

3/5

Step-by-step explanation:

3/5 is equal to 9/15.

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3 years ago

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