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2 years ago

What is the graph of the function f(x)=1/2x²×2x-6

Mathematics

1 answer:

Lesechka [4]2 years ago

4 0

Answer:

for this you can substitute as x= 0,1,2,3,4

example like

when x= 0

f(x) = 1/2x²X2x-6

f(0) = 1/2(0)² X 2(0)-6

= -6

so you can do like this and so you can draw graph through looking to the value(answer)

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Shelly is a baker she is using batter to make pancakes. Which is the dependent variable the batter or the pancakes. Which is the

Nesterboy [21]

Answer:

The Pancakes are actually dependent while the Batter is Independent because your are changing the batter. Think of I change in an Independent variable. You cant really change the outcome which is the dependent.

Step-by-step explanation:

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3 years ago

Negative numbers and Positive numbers

kap26 [50]

Answer:

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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)

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2 years ago

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Someone help, what’s 1+1?

Sergeu [11.5K]

It's 2 sir/ Maam Your Welcome

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3 years ago

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Answer:

Step-by-step explanation:

Hope this helped!

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3 years ago

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