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dolphi86 [110]
3 years ago
14

What is the diameter of the following circle?​

Mathematics
2 answers:
DochEvi [55]3 years ago
6 0

Answer:

12

Step-by-step explanation:

diameter is 2r

r=6

6*2=12

sveta [45]3 years ago
3 0

Answer:

12

Step-by-step explanation:

6 is the radius and when u square it u get 12

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Find an exact value.
leonid [27]

Answer:

(√2 - √6) / 4

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Step-by-step explanation:

sine of negative eleven pi divided by twelve.

We have :

sin(-11π/12)

sin((4 - 15)π / 12) = sin(4π/12 - 15π/12)

sin(4π/12 - 15π/12) = sin(π/3 - 5π/4)

Recall:

Angle difference formula:

sin(A - B) = sinAcosB - sinBcosA

Hence,

sin(π/3 - 5π/4) = sin(π/3) cos(5π/4) − sin(5π/4) cos(π/3)

From trigonometry:

sinπ/3 = √3/2

cos5π/4 = -√2/2

sin5π/4 = -√2/2

cos π/3 = 1/2

(√3/2) (-√2/2) − (-√2/2) (1/2)

-√6/4 - -√2/4

-√6/4 + √2/4

√2/4 - √6/4

(√2 - √6) / 4

7 0
3 years ago
Jonathan rode 1.05 miles on friday,1.5 on saturday,1.25 on monday,and 1.1 miles on tuesday.on which day did he ride the shortest
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look at the numbers on the right side of the decimal point. The lowest number will be your answer
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0=4t-16t^2 Solve this please
vaieri [72.5K]

Answer:

\large\boxed{t=0\ \vee\ t=\dfrac{1}{4}}

Step-by-step explanation:

4t-16t^2=0\qquad\text{divide both sides by 4}\\\\\dfrac{4t}{4}-\dfrac{16t^2}{4}=\dfrac{0}{4}\\\\t-4t^2=0\\\\t(1-4t)=0\iff t=0\ \vee\ 1-4t=0\\\\1-4t=0\qquad\text{subtract 1 from both sides}\\\\-4t=-1\qquad\text{divide both sides by (-4)}\\\\t=\dfrac{1}{4}

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3 years ago
which expression represents the distance between the two points x and y on the number line -4 and 3
Alika [10]
It would have to be 3 because distance can't be a negative number.
4 0
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Read 2 more answers
1 lb 0.454 kg About how many kilograms are in 21 pounds?
Semmy [17]

Answer:

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Step-by-step explanation:

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  • <em>Kilograms : The kilogram (or kilogramme, SI symbol: kg), also known as the kilo, is the fundamental unit of mass in the International System of Units. Defined as being equal to the mass of the International Prototype Kilogram (IPK), that is almost exactly equal to the mass of one liter of water. The kilogram is the only SI base unit using an SI prefix ("kilo", symbol "k") as part of its name. The stability of kilogram is really important, for four of the seven fundamental units in the SI system are defined relative to it.</em>
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