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3 years ago

Surface area and volume

Mathematics

1 answer:

Wittaler [7]3 years ago

6 0

Triangular prism
length of slanted side:
sqrt(3^2 + 4^2) = 5
SA = 2(1/2)(8)(3) + 8(12) + 2(5)(12) =240
V = (1/2)(8)(3)(12) = 144

cuboid
SA = 2(7x6) + 2(7x5) + 2(6x5) = 214
V = 7x6x5 = 210

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Answer:

Step-by-step explanation:

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4( x+6)=-4(2x-9)+3x

kupik [55]

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Step-by-step explanation:

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Lunna [17]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and c the y- intercept )

(1)

Here m = 6 and b = - 2, then

y = 6x - 2

(2)

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Here m = - 2 and b = 5, then

y = - 2x + 5 ← equation in slope- intercept form

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2x + y = 5 ← equation in standard form

(3)

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m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

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y = - x + b ← is the partial equation

To find b substitute either of the 2 points into the partial equation

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- 3 = 4 + b ⇒ b = - 3 - 4 = - 7

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Add x to both sides

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