3 years ago

Area of a circle? Need to know for big test tomorrow

Mathematics

2 answers:

Aleksandr [31]3 years ago

7 0

To find the area of a circle find the radius and square it then multiply by PI

Area = PI x r^2

SCORPION-xisa [38]3 years ago

7 0

A = \pi r^{2} Hope this helps!

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the group hiked a total of 17.4 miles on the first day. on the second day that group Heights a distance 12% more than the total

Leto [7]

Let x be the number of miles on the second day
X/17.4=1.12
X=17.4*1.12
X=19.5 miles
Hope this helps!

7 0

3 years ago

3 grapes= 1 pineapple

CaHeK987 [17]

Answer:

$1\dfrac{17}{19}$

Step-by-step explanation:

19 bananas =1 watermelon

3 pineapples =1 watermelon

Then

19 bananas = 3 pineapples

1 pineapple = 3 grapes,

then

3 pineapples = 9 grapes

3 pineapples = 9 grapes

19 bananas = 3 pineapples

then

9 grapes = 19 bananas

9 grapes = 19 bananas

x grapes = 4 bananas

Write a proportion:

$\dfrac{9}{x}=\dfrac{19}{4}$

Cross multiply

$19x=9\cdot 4\\ \\19x=36\\ \\x=\dfrac{36}{19}=1\dfrac{17}{19}$

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3 years ago

Write an expression for the sequence of operations described below.

Anna [14]

Answer:

a - (6-9)

Hopefully this is correct

Step-by-step explanation:

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2 years ago

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What is the solution to the equation below? log7+log(x-4)= 1

Mila [183]

Answer: x=38/7

Step-by-step explanation:

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3 years ago

Work out the height of this triangle with base, b = 8mm and area, A= 218.8mm2.

Vinil7 [7]

Answer:

54.7

Step-by-step explanation:

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3 years ago

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