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cupoosta [38]
3 years ago
13

What is the rule for the following sequence of numbers: 3, 12, 30, 66, ...?

Mathematics
2 answers:
natulia [17]3 years ago
5 0
The answer is D. 3+3=6*2=12+3=15*2=30...
san4es73 [151]3 years ago
4 0
The sequence is: 3 , 12 , 30 , 66

12-3 = 9
30-12 = 18
66-30 = 36

18/9 = 2
36/18 = 2

Because the difference of 2 of the numbers  divided by the difference of the other 2 numbers is equal to 2, on of the steps is multiplying the previous number by 2,
 But since the previous number multiplied by 2 does not equal the next number, the other step needed is to add 3 first.


 The answer is 4) add 3, multiply by 2


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What is the area to this shape ?
Dafna1 [17]

Answer:

249.42 units²

Step-by-step explanation:

Given only the apothem of an n-sided regular polygon, the area can be computed as ...

... A = n·a²·tan(180°/n)

For n=3 and a=4√3, this is ...

... A = 3·(4√3)²·tan(60°)

... A = 3·48·√3 = 144√3 . . . . units²

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4 0
3 years ago
I have 1 apple I need 6 more to get to 7 so I pick 3 up eat 2 which picking up 4 more , how many apples do I have?
natita [175]

Answer:

6

Step-by-step explanation:

1+3=4  4-2=2  2+4=6

7 0
3 years ago
Read 2 more answers
33. Suppose you were on a planet where the
tatyana61 [14]

<u>Answer:</u>

a) 3.675 m  

b) 3.67m

<u>Explanation:</u>

We are given acceleration due to gravity on earth =9.8ms^-2

And on planet given = 2.0ms^-2

A) <u>Since the maximum</u><u> jump height</u><u> is given by the formula  </u>

\mathrm{H}=\frac{\left(\mathrm{v} 0^{2} \times \sin 2 \emptyset\right)}{2 \mathrm{g}}

Where H = max jump height,  

v0 = velocity of jump,  

Ø = angle of jump and  

g = acceleration due to gravity

Considering velocity and angle in both cases  

\frac{\mathrm{H} 1}{\mathrm{H} 2}=\frac{\mathrm{g} 2}{\mathrm{g} 1}

Where H1 = jump height on given planet,

H2 = jump height on earth = 0.75m (given)  

g1 = 2.0ms^-2 and  

g2 = 9.8ms^-2

Substituting these values we get H1 = 3.675m which is the required answer

B)<u> Formula to </u><u>find height</u><u> of ball thrown is given by  </u>

 \mathrm{h}=(\mathrm{v} 0 * \mathrm{t})+\frac{\mathrm{a} *\left(t^{2}\right)}{2}

which is due to projectile motion of ball  

Now h = max height,

v0 = initial velocity = 0,

t = time of motion,  

a = acceleration = g = acceleration due to gravity

Considering t = same on both places we can write  

\frac{\mathrm{H} 1}{\mathrm{H} 2}=\frac{\mathrm{g} 1}{\mathrm{g} 2}

where h1 and h2 are max heights ball reaches on planet and earth respectively and g1 and g2 are respective accelerations

substituting h2 = 18m, g1 = 2.0ms^-2  and g2 = 9.8ms^-2

We get h1 = 3.67m which is the required height

6 0
4 years ago
Amanda is riding her bicycle. She rides for 17.5 kilometers at a speed of 7 kilometers per hour. For how many hours does she rid
Misha Larkins [42]
She was riding for 2 hours and 30 mins
8 0
3 years ago
Stacy has two job offers for sales jobs. For job A, she would earn a monthly salary of $3,600 and no commission. For job B, she
storchak [24]

Answer:

Job A

Step-by-step explanation:

Job A is $3600 a month while Job B:

5% of $50000 is $2500. $2500 + $1000 = $3500.

$3500 < $3600

5 0
3 years ago
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