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4 years ago

3.

Mathematics

1 answer:

finlep [7]4 years ago

6 0

$black\ cars-20\\white\ cars-5\\\\so\ difference\ is:\boxed{20-5=15}\leftarow\ answer\ \boxed{\boxed{C}}$

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The figures below are based on semicircles and squares. Find the perimeter and the area of each shape. Give your answer as a com

irina1246 [14]

Answer:

Part 1) The area of the figure is $A=48\ cm^2$

Part 2) The perimeter of the figure is $P=4(2+3\pi)\ cm$

Step-by-step explanation:

Part 1) Find the area of the figure

we know that

The area of the figure is equal to the area of three squares

$A=3[4^2]=48\ cm^2$

Part 2) Find the perimeter of the figure

we know that

The perimeter of the figure is equal to two times the length side of the square, plus the circumference of six semicircles ( or the circumference of three circles)

Remember that

The circumference of a circle is equal to

$C=\pi D$

where

D is the diameter of the circle

In this problem

$D=4\ cm$

$P=2(4)+3[\pi(4)]=(8+12\pi)\ cm$

simplify

$P=4(2+3\pi)\ cm$

8 0

3 years ago

Evaluate 1+ (-2/3)- (-m) where m=9/12

Agata [3.3K]

Answer:

13/12

Step-by-step explanation:

1-2/3+9/12

least common denominator is 12

12/12 - 8/12+9/12

13/12

6 0

3 years ago

Please help me with this

Rainbow [258]

It would be C because that is the one that make the most sense

7 0

2 years ago

In the chemistry lab an experiment requires 599 mL of one ingredient to be mixed with 1000 mL of another. How many ounces is the

raketka [301]

Answer:

50.7202

Step-by-step explanation:

(500ml+1000ml) / (29.574 ml per ounce) = 50.72 US Fluid Ounces

3 0

2 years ago

Ms. Augustine is playing a game with her class. When a student tells her a number, she uses a rule to determine the new number.

Degger [83]

Answer:

When a student tells her a number, she uses a rule to determ

Step-by-step explanation:

Get the answers ... When a student tells her a number, she uses a rule to determine the new number. Ms. Augustine always uses the same rule. The table below shows some of the results. What would the number be when the student says 8? A. 58. B. 56. C. 54

7 0

3 years ago