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Luba_88 [7]
3 years ago
12

They randomly survey 50 students about how much money they spend on lunch each day. What is the expected value for a student to

spend on lunch each day?
Mathematics
1 answer:
siniylev [52]3 years ago
3 0
2$ for public 3-4$ for private
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If the seed company recommends planting approximately 350 grass seeds per square meter, about how many grass seeds will he need?
Svetach [21]

Answer:

83422.5 grass seeds

Step-by-step explanation:

Applying,

A = 1/2bh....................... Equation 1

Where A = Area of the Triangle, b = base, h = height.

But, from the diagram,

tanФ = 20/b

b = 20/tanФ.................. Equation 2

Substitute equation 2 into equation 1

A = 1/2(20/tanФ)(h)................ Equation 3

Given: h = 20 m, Ф = 40°

Substitute these values into equation 3

A = 1/2(20×20)/tan40°

A = 200/tan40°

A = 238.35 m²

If the seed company recommends planting approximately 350 grass seeds per square meter,

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3 years ago
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MatroZZZ [7]

Answer:

4) choice 1) 14.7 cm

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Step-by-step explanation:

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Hope this helped :)

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