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3 years ago

Please helppp!! Round to the nearest hundredths

Mathematics

2 answers:

meriva3 years ago

7 0

Answer:

Step-by-step explanation:

diameter = 42 mm

radius (r) = 42/2 = 21mm

SA of semicircle = 3πr²

$=3*\frac{22}{7}*21*21\\\\=3*22*3*21\\\\=4158mm^{2}$

densk [106]3 years ago

3 0

Answer:1385.44mm sq

Step-by-step explanation: surface area of a circle = pi x radius squared

3.142 x 21 squared

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alexandr1967 [171]

Answer:

Step-by-step explanation:

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3 years ago

The band is selling wreaths for $30 each and garlands for $20 each.They eould like to raise at least $2400 to put towards the en

murzikaleks [220]

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In this equation, the number of wreaths is represented with the variable 'w', and the number of garlands is represented the equation 'g'

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3 years ago

For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment, Bobby dissolv

nekit [7.7K]

Marcia dissolved 1 kg of salt in 3 litres of water.
Bobby dissolves 2 pounds of salt in 7 pints of water
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3 years ago

15 a2 - 6ab- 8 a2+ 20 - 5ab - 31 + a2- ab

Ivanshal [37]

Step-by-step explanation:

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Answer: 24a²-2ab-11

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3 years ago

Read 2 more answers

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