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3 years ago

Stanley measured a county park and made a scale drawing. The picnic area, which is 120

Mathematics

1 answer:

algol [13]3 years ago

6 0

Answer:

Step-by-step explanation:

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The tables represent the functions f(x) and g(x).

adell [148]

Answer:

Step-by-step explanation:

it's - 6 Anasta :)

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3 years ago

6=−w8 how can i solve this

Vaselesa [24]

Divide 6 by -8 to get the variable alone!
6/-8 < division< equation

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3 years ago

How many ways can a girl choose a two piece outfit from 5 blouses and 7 skirts?

Tanzania [10]

Answer:

5 times 7 is 35

Step-by-step explanation:

u multiplies 7 times 5

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3 years ago

The function f(x) = 2x – 3 is graphed below. What is the y-intercept?

Amanda [17]

Answer:

ill give u the answer if u do 73 divided by 2628

Step-by-step explanation:

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3 years ago

Work out the surface area of a cylinder when the height = 18cm and the volume = 1715cm cubed

lara [203]

Answer:

813.4 cm² (nearest tenth)

Step-by-step explanation:

Volume of a cylinder

$\sf V=\pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

Given:

h = 18cm
V = 1715 cm³

Use the Volume of a Cylinder formula and the given values to find the radius of the cylinder:

$\implies \sf 1715=\pi r^2 (18)$

$\implies \sf r^2=\dfrac{1715}{18 \pi}$

$\implies \sf r=\sqrt{\dfrac{1715}{18 \pi}$

Surface Area of a Cylinder

$\sf SA=2 \pi r^2 + 2 \pi r h \quad\textsf{(where r is the radius and h is the height)}$

Substitute the given value of h and the found value of r into the formula and solve for SA:

$\implies \sf SA=2 \pi \left(\sqrt{\dfrac{1715}{18 \pi}\right)^2 + 2 \pi \left(\sqrt{\dfrac{1715}{18 \pi}\right)(18)$

$\implies \sf SA=2 \pi \left(\dfrac{1715}{18 \pi} \right) + 36 \pi \left(\sqrt{\dfrac{1715}{18 \pi}\right)$

$\implies \sf SA=\dfrac{1715}{9} + 36 \pi \left(\sqrt{\dfrac{1715}{18 \pi}\right)$

$\implies \sf SA=813.3908956...$

Therefore, the surface area of the cylinder is 813.4 cm² (nearest tenth)

8 0

2 years ago

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