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yan [13]
3 years ago
7

Need help quick and fast!

Mathematics
1 answer:
scZoUnD [109]3 years ago
7 0

Answer:

Commutative= 3x2=2x3

Associative Multiplication= 2x(6x8)=(2x6)x8

Distributive= 5(7+2)=5x7+5x2

Associative Addition=(2+5)+4=2+(5+4)

Step-by-step explanation:

 

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A paint box contains 12 bottles of different colors. If we choose equal quantities of 3 different colors at random, how many col
Luden [163]

Answer:

C

Step-by-step explanation:

You are choosing 3 from a total of 12. Order does not matter. So you are working with combinations. The answer symbolically is

12C3

12C3 = 12!/(9!3!)

12C3 = 12 * 11 * 10 * 9!/(9! 3!)

12C3 = 12 * 11 * 10/6

12C3 = 2 * 11 * 10

12C3 = 220

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3 years ago
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Find a formula for a function f(x,y,z) whose level surface f=81 is a sphere of radius 9, centered at the origin.
Mrrafil [7]

81(9 \times 8 = 72 + 9) = 81
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3 years ago
Find the difference: 7 7/8- 3 1/4 =
enyata [817]
7 and 7/8=63/8 and 3 and 1/4=13/4. 63/8 and 13/4 as common denominators are 63/8 and 26/8. 63/8-26/8=37/8. 37/8 as a mixed number is 4 5/8.
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2 years ago
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A sidewalk around a circular park covers a distance of 65 meters. A new sidewalk is being constructed across the park through it
Tpy6a [65]

Answer:

102


Step-by-step explanation:


6 0
3 years ago
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In the diagram below, RSTU is a rectangle, and the two shaded regions are squares.
sdas [7]

Answer:

length PQ = 8.9 m  

Step-by-step explanation:

The picture below completes the question you  asked. From the picture above RSTU is a rectangle . The two shaded square has a length of sides 8 m and 4 m respectively. The legs of the triangle is the sides of the 2 squares. Therefore, the triangle is a right angle triangle. The adjacent side is 4 m while the opposite side is 8 m.

Using Pythagoras theorem the hypotenuse of the triangle can be calculated below.

Pythagoras theorem

c² = a² + b² Therefore,

c² = 4² + 8²

c² = 16 + 64

c² = 80

square root both sides

c = √80

c = 8.94427191

c ≈ 8.9 m

length PQ = 8.9 m  

7 0
3 years ago
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