3 years ago

Help me please ill give points and stuff

Mathematics

1 answer:

zheka24 [161]3 years ago

3 0

Answer:

The third one I have a formula sheet

Step-by-step explanation:

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Can anyon help i have no idea

Veronika [31]

Answer:

3.65 through 3.74

Step-by-step explanation:

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3 years ago

Find the surface area of a regualar pyramid that is a pentagonal pyramid with the area of a base is is 440.4mm and a height of 2

Inessa [10]

Answer:

1240.4 mm²

Step-by-step explanation:

The surface area of a pyramid = Area of the all sides + Area of base

Each side is a triangle.

With a regular pentagonal pyramid, the area of each triangle is

$A = \frac{1}{2}\times\text{base}\times\text{slant height}$

For the 5 triangles,

$A = 5\times\frac{1}{2}\times\text{base}\times\text{slant height} = \frac{1}{2}\times5\times\text{base}\times\text{slant height}$

Substituting given values,

$A = 5\times\frac{1}{2}\times16\ \text{mm}\times20\ \text{mm} = 800 \text{mm}^2$

Area of base = 440.4 mm²

Surface area of a pyramid = 800 + 440.4 mm² = 1240.4 mm²

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3 years ago

The moon has a shape of what geometric solid?

Alex777 [14]

The moon is a sphere. 

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3 years ago

Jenna flips to pennies 105 times how many times can she expect both coins to come up heads

seropon [69]

53 because there is only 2 sides of a penny so 105 divided by 2 is 52.5

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3 years ago

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Write the equation of the line, in slope-intercept form, with the following information: slope: 1/3 y-intercept: (0, 2)

sp2606 [1]

Answer:

y=1/3x+2

Step-by-step explanation:

to put it in y=mx+b slope is m and b is the y intercept

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3 years ago