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ioda
2 years ago
10

3. If the lateral surface area of a

Mathematics
2 answers:
azamat2 years ago
6 0

Step-by-step explanation:

natulia [17]2 years ago
3 0

Answer:

<em>I) R = 3 cm;</em>

<em>II) V = 14.3 cm³.</em>

Step-by-step explanation:

<em>I) C = 94.2 ÷ 5 = 18.84</em>

<em>A cylinder has a base with a circumference of 18.84cm.</em>

<em />R=\dfrac{C}{2\pi } =\dfrac{18.84}{2 \cdot 3.14} =\dfrac{18.84}{6.28} =3 \: (cm)<em />

<em />

<em>II) </em>V=\pi R^{2}H=3.14 \cdot 3^{2}  \cdot  5 = 141.3 \: (cm^{3})<em />

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4 years ago
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I have no idea how to do this one please help
Nuetrik [128]

Answer:

a = -14

Step-by-step explanation:

We are given

\frac{2a+38}{5} = 2\\

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\frac{(2a+38)(5)}{5} = (2)(5)\\2a + 38 = 10

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6 0
3 years ago
You want to buy a tent in the shape of a pyramid. The rectangular base is 35 square feet, with a height of 4 feet. What is the v
Aliun [14]

Answer:

46.67 cubic feet

Step-by-step explanation:

Given :The rectangular base is 35 square feet, with a height of 4 feet.

To Find :What is the volume of the tent?

Solution :

Volume of rectangular base pyramid =

Since we are given that The rectangular base is 35 square feet, i.e. area of rectangular base = l*w = 35 sqaure feet

Height of pyramid h = 4 feet

Putting values in formula

Volume of rectangular base pyramid =

                                                             =

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Thus  volume of the tent is 46.67 cubic feet

6 0
3 years ago
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iren [92.7K]

Answer:

4

Step-by-step explanation:

Simplify x and y by rationalising the denominator of both

To rationalise the denominator multiply the numerator/ denominator by the conjugate of the denominator.

The conjugate of 2 + \sqrt{3} is 2 - \sqrt{3}

The conjugate of 2 - \sqrt{3} is 2 + \sqrt{3}

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Thus

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5 0
3 years ago
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