3 years ago

Simplify the expression.

Mathematics

1 answer:

Ivanshal [37]3 years ago

4 0

Do you know how to change mixed fractions to improper fractions

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Find the approximate area of a semicircle with a radius of 6 centimeters.

Makovka662 [10]

Step-by-step explanation:

area of a semicircle=1/2(πr^2
=1/2×22/7×6^2
=56.54

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3 years ago

What is parenthesis ?

Fynjy0 [20]

Parenthesis are something you can use in math problems that mean anything inside of them is what you have to solve first. In PEMDAS P is parenthesis which means that is first.

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3 years ago

Simplify: 9^-3<br><br><br> Please help!

dalvyx [7]

Answer:

Fraction form: 1/729

Decimal form: 0.00137174...

Exponent form: 3^-6

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3 years ago

For every 5 coins carmen gets ,she gives 2 to her brother Frankie.If carmen has 9 coins,howmany coins does Frankie have?

FrozenT [24]

Answer:

Frankie have 6 coins

Step-by-step explanation:

For every 5 coins Carmen gets ,she gives 2 to her brother Frankie

Out of 5 coins, Carmen given 2 to her brother Frankie

So Carmen has 3 coins and Frankie has 2 coins

Ratio of coins , Frankie to Carmen is

2: 3

We need to find the number of coins Frankie has if Carmen has 9 coins

ratio of Frankie to Carmen is x : 9

Now make a proportion and solve for x

$\frac{2}{3} =\frac{x}{9}$

Cross multiply it

2*9 = 3*x

18 = 3x

Now divide both sides by 3

so x= 6

Frankie have 6 coins

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3 years ago

a man drives x miles the first day, y miles the second day, and z miles the third day. the averge mileage covered per day is

statuscvo [17]

The average mileage covered per day is = number of miles / number of days.

The average mileage covered per day is =(x+y+z)/3

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