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alexandr1967 [171]
3 years ago
12

Can you help? i forgot how to find the surface area!

Mathematics
2 answers:
Rainbow [258]3 years ago
8 0

Answer:

To find the surface area of a cuboid, add the areas of all 6 faces. You can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Step-by-step explanation:

Hatshy [7]3 years ago
4 0

Answer:

Surface Area: 204mm^2

Step-by-step explanation:

The formula for the surface area of a rectangular prism is: 2(lw + wh +lh)

Our length, width and height are:

Length: 15mm

Width: 3mm

Height: 4mm

Then, we plug it in.

2(15x3 + 3x4 + 15x4)

2(30 + 12 + 60)

2(102)

204mm^2

Therefore, our surface area for the rectangular prism is 204mm^2.

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Graph the equation y=-x. is (5,5) on the line? what is the slope of the line?
bezimeni [28]
You'll actually need to graph for the first segment
but the second part can be solved with algebra

The equation of the line is y(x)=-x

if we test the co0ordinates we can find if the point lies on the line

(5,5)
y(x)=-x

Using the x co-ordinate
y(5)= -5
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3 years ago
Find the distance between the two points rounding to the nearest tenth (if necessary).
Genrish500 [490]

Answer:

13 units

Step-by-step explanation:

(-1,5) and (4, -7)

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d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }

Let's plug in what we know.

d = \sqrt{(4 - (-1))^2 + (-7 - 5)^2 }

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d = \sqrt{(4 +1))^2 + (-7 - 5)^2 }

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d = \sqrt{(5)^2 + (-12)^2 }

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d = \sqrt{(25) + (144) }

Add.

d = \sqrt{(169) }

Evaluate the square root.

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Hope this helps!

4 0
3 years ago
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Ok! So first, 2 hours are 120 minutes and 55 + 35 = 90
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olga55 [171]

Answer:

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