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2 years ago

2. A circle has a diameter of 12 m. Find the circumference. Use 3.14 for π. DO NOT WRITE THE UNITS IN YOUR ANSWER

Mathematics

2 answers:

Sloan [31]2 years ago

8 0

Answer:

37.68

Step-by-step explanation:

guajiro [1.7K]2 years ago

4 0

Answer:

37.68

Step-by-step explanation:

12*3.14

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2 years ago

Deidre is picking out some movies to rent, and she is primarily interested in documentaries and children's movies. She has narro

exis [7]

Answer: 6630

Step-by-step explanation:

Given , Number of documentaries = 17

Number of children's movies = 20

Total movies = 17+20=37

Number of combinations of r things taken out of things = $^nC_r=\dfrac{n!}{r!(n-r)!}$

Now, the number of different combinations of 3 movies can she rent if she wants at least one documentary

= (1 documentary+2 children's movies , 2 documentary+1 children's movies , 3 documentary+0 children's movies)

$=^{17}C_1\times^{20}C_{2}+^{17}C_2\times^{20}C_{1}+^{17}C_3\times^{20}C_{0}$

$=(17)\times\dfrac{20!}{2!18!}+\dfrac{17!}{2!15!}\times(20)+\dfrac{17!}{3!14!}(1)\\\\=3230+2720+680=6630$

Hence, the number of different combinations of 3 movies can she rent if she wants at least one documentary is 6630 .

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3 years ago

(1 point)

Rashid [163]

The third one is the answer for this question

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2 years ago

PQRS is a parallelogram. PR and QS are diagonals. Match each element to its value. Tiles value of length of value of length of

ss7ja [257]

Since it is a parallelogram cente at point T, then the measure of PT is equal to the measure of TR. And the measure of QT is equal to the measure of TS.

PT = TR

a + 4 = 2a

4 = 2a -a

a = 4

PT = TR = 8 units

QT = TS

b = 2b -3

3 = 2b – b

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<span>QT = TS = 3 units</span>

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2 years ago

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shutvik [7]

6x5+24x3+3x3+12x ------> Simplify by adding like terms

6x5 + 27x3 + 12x

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3 years ago