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3 years ago

Find the exact volume of a waffle ice cream cone with 15-in. Diameter and a height of 23 inches

Mathematics

1 answer:

Andrew [12]3 years ago

4 0

Radius = 15/2 = 7.5
Volume of cone: pi(r)^2*h/2
= pi(7.5)^2*23/2
pi(56.25) * 23/2
(3.14)(56.25)(23)/2 = 2,031 inches

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Leila runs at 12 miles per hour. Find the number of miles she can travel if she runs for 1 1/2 hours.

mash [69]

Answer:

18 miles

Step-by-step explanation:

Distance = speed * time

d = 12 *1 1/2 = 12*1.5 = 18

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3 years ago

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15 points PLEASE HELP!!! Factor the following equation: <img src="https://tex.z-dn.net/?f=x%5E2%2B3x%2B4" id="TexFor

ycow [4]

Step-by-step explanation:

x²+3x+4=0

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Mark my answer as branlist answer

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3 years ago

Someone plz help me :(

LiRa [457]

Hey there ;-)

It will be -13,

as the other numbers can also be there in the inner circle.

By Benjemin ☺️

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3 years ago

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Alex Ar [27]

The intensity of sound which the decibel level of the sound measures 156 is 3.981 × 10³ W/m²

Decibel level, dB = 10log₁₀(I/I₀) where dB = decibel level = 156, I = intensity at 156 dB and I₀ = 10⁻¹² W/m².

Since we require I, making I subject of the formula, we have

dB/10 = log₁₀(I/I₀)

$\frac{I}{I_{0} } = 10^{\frac{dB}{10} } \\I = I_{0} 10^{\frac{dB}{10} }$

Substituting the values of the variables into the equation, we have

$I = I_{0} 10^{\frac{dB}{10} }\\I = 10^{-12} 10^{\frac{156}{10} }\\I = 10^{-12} 10^{15.6}\\I = 10^{15.6-12} \\I = 10^{3.6} W/m^{2}$

I = 3981.072W/m²

I = 3.981 × 10³ W/m²

So, the intensity of sound which the decibel level of the sound measures 156 is 3.981 × 10³ W/m²

Learn more about intensity of sound here:

brainly.com/question/4431819

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3 years ago

2×1,000+9×100+5×1+1×1100+3×11,000

elixir [45]

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Step-by-step explanation: I AM NOT SO GOOD WITH MATH!!

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3 years ago