3 years ago

Please help me thanks please

Mathematics

2 answers:

kolbaska11 [484]3 years ago

6 0

Step-by-step explanation:

make it braintliest please

mash [69]3 years ago

5 0

Answer:

Step-by-step explanation:

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Find the volume of a pyramid with a square base, where the perimeter of the base is

grigory [225]

Answer:

90.3125 cm³

Step-by-step explanation:

Since the perimeter of the bottom square is 17, you can divide by four to find out what the lenght of each side is.

17/4=4.25 cm

We know the height of pyramid is 15 cm

The formula for the volume of a square pyramid is

V=a²(h/3)

V=a2(h/3)=4.252·15/3=90.3125 cm³

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2. A parent pledged $0.50 per lap in a walk-thon at school.

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But how many laps did she walk

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Write this rate in its simplest form: $1200 in 50 days.

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3 years ago

HELP PLEASE!

wel

Answers:

$\text{Perimeter} = 14\sqrt{5}\\\\\text{Area} = 50\\\\$

=======================================================

Work Shown:

$L = 2\sqrt{5} = \text{length}$

$W = 5\sqrt{5} = \text{width}$

P = perimeter

$P = 2*(L+W)\\\\P = 2*(2\sqrt{5}+5\sqrt{5})\\\\P = 2*(7\sqrt{5})\\\\P = 14\sqrt{5}\\\\$

-------------

A = area

$A = L*W\\\\A = (2\sqrt{5})*(5\sqrt{5})\\\\A = (2*5)(\sqrt{5}*\sqrt{5})\\\\A = 10\sqrt{5*5}\\\\A = 10\sqrt{25}\\\\A = 10*5\\\\A = 50\\\\$

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3 years ago

Read 2 more answers

If f(x)=x^2+4x and g(x)=2x+2 find f(5)+g(6)

Veseljchak [2.6K]

F(5)= 5^2+4(5) = 25+20=45
g(6)= 2(6)+2 = 14
f(5)+g(6) = 45+14 = 59

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4 years ago