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3 years ago

A solid has 20 faces and 12

Mathematics

1 answer:

alexandr402 [8]3 years ago

7 0

Answer:

Step-by-step explanation:

20+12-E=2

32-E=2

-E=-30

E=30

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alan drew a polygon with four sides and four angle. All four sides are equal. None of the angle are right angle. What figure did

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Alan drew a quadrilateral that is a parallelogram and a rhombus.

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3 years ago

Solve<br> for x:<br> 3(1 - 3x) = 2(-4x + 7)

djverab [1.8K]

Answer:

x= -11

Step-by-step explanation:

distribute the 3 and the 2: 3 - 9x = -8x + 14

add 9x from both sides and subtract 14 from both sides: -11 = x

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3 years ago

The volume of a cylinder whose base,area is 500sq.cm and height is 14 cm is cu.cm

Allisa [31]

<h3> $\huge\bigstar\:$ $\Huge\tt\underline\blue{ANSWER}$ </h3><h3 /><h3 /><h3>The area is 7000.</h3>

$\huge\bigstar\:$ $\Huge\tt\underline\red{EXPLAINATION}$

The base of the cylinder = 5000 sq.cm

Height = 14cm

The volume of the cylinder = 5000× 14 = 7000

<h3>HOPE IT HELPS YOU :)</h3>

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3 years ago

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steposvetlana [31]

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Step-by-step explanation:

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3 years ago

If f(x) = 7 + 4x and g (x) = StartFraction 1 Over 2 x EndFraction, what is the value of (StartFraction f Over g EndFraction) (5)

Degger [83]

Answer:

$\frac{f}{g}(5)$ = 270 ⇒ Last answer

Step-by-step explanation:

* If f(x) = 7 + 4x

* If g(x) = $\frac{1}{2x}$

* We want to find $\frac{f}{g}(5)$

- Lets find at first $\frac{f}{g}(x)$

∵ f(x) = 7 + 4x

∵ g(x) = $\frac{1}{2x}$

∴ $\frac{f}{g}(x)=\frac{7+4x}{\frac{1}{2x}}$

- Lets divide the numerator by the denominator

∵ The numerator is 7 + 4x

∵ The denominator is $\frac{1}{2x}$

∴ (7 + 4x) ÷ $\frac{1}{2x}$

- Lets reverse the division sign to multiplication sign and reciprocal

the fraction after the division sign

∴ (7 + 4x) × $\frac{2x}{1}$

∴ $\frac{f}{g}(x)$ = 2x(7 + 4x)

∴ $\frac{f}{g}(x)$ = 14x + 8x²

- Now substitute x by 5

∴ $\frac{f}{g}(5)$ = 14(5) + 8(5)² = 70 + 200 = 270

∴ $\frac{f}{g}(5)$ = 270

4 0

3 years ago

Read 2 more answers