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kakasveta [241]
2 years ago
5

Select the correct answer. What is the solution to this equation? A. B. C. D.

Mathematics
1 answer:
amm18122 years ago
3 0

Answer:

We do not have any problem to solve?

Step-by-step explanation:

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The volume of a cone is 108 pi cubic inches. Its height is 4 inches. What is the radius of the cone? Round answer to nearest ten
leonid [27]

\bf \textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\ -----\\ V=108\pi \\ h=4 \end{cases}\implies 108\pi =\cfrac{\pi r^2(4)}{3}\implies 324\pi =4\pi r^2 \\\\\\ \cfrac{324\pi }{4\pi }=r^2\implies 81=r^2\implies \sqrt{81}=r\implies 9=r

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3 years ago
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A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $120 for 100 minutes of us
soldi70 [24.7K]
The answer to this is C.
6 0
3 years ago
Determina la masa molar y el volumen que ocupa la siguiente sustancia CO2, si su masa es de 28 gr. *
balandron [24]

Answer:

Para el CO₂ sabemos que:

densidad = 0,001976 g/cm³

Sabemos que:

densidad = masa/volumen

Entonces, si tenemos una masa de 28 g, podemos escribir:

volumen = masa/densidad

volumen = (28g)/(0,001976 g/cm³) = 14,170 cm^3

Para obtener la masa molar (es decir, la masa de un mol de esta sustancia) simplemente sumamos la masa de un mol de cada componente.

Carbono: tiene una masa molar de 12 g/mol

Oxígeno: tiene una masa molar de 16 g/mol (y tenemos dos oxígenos)

entonces la masa molar va a ser:

masa molar = 12g/mol + 2*16g/mol = 44 g/mol

Es decir, un mol de CO₂, pesa 44 gramos.

7 0
3 years ago
GIVING BRAINLEST TO THE PERSON WHO ANSWERS IT FIRST AND CORRECT!!
Kruka [31]

Answer:

read below explanation

Step-by-step explanation:

KEY= C;CAROL T;TINO B;BAXTER

inches: C=90 T=90 B=90

Feet: C=7.5 T=7.5 B=7.5

Yards C=2.5 T=2.5 B=2.5

5 0
3 years ago
Find the percent of tip:
r-ruslan [8.4K]
The answer is 14%

Cost of meal is 100%:         $18.50 is 100%
Tip is x%:                             $2.59 is x

Make a proportion:
$18.50 : 100% = $2.59 : x
x = 100% * $2.59 : $18.50
x = 14%
4 0
3 years ago
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