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stepladder [879]
4 years ago
6

Study the geometric sequence {-4, -84, -1764, -37044, ...}.

Mathematics
1 answer:
Nonamiya [84]4 years ago
3 0

Answer:

              \bold{a_n=(-4)21^{n-1}}

Step-by-step explanation:

a_1=-4\,,\ a_2=-84\,,\ a_3=-1764\,,\ a_4=-37044\quad\implies\ \ r=21

{-84:(-4)=21 and -1764:(-84)=21 and -37044:(-1764)=21}

geometric sequence formula:   a_n=a_1r^{n-1}

a_1=-4\quad and \ \ r=21

a_n=(-4)21^{n-1}

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Alisiya [41]

Answer:

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Step-by-step explanation:

solve using pemdas

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8 0
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If the number of $8 child tickets is 17 less than 3 times the number of $12 adult tickets and the theater took in $584, how many
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Answer:

The number of child tickets sold was 43 and the number of adult tickets sold was 20

Step-by-step explanation:

Let

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y ----> the number of adult tickets sold

we know that

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Solve the system by graphing

Remember that the solution is the intersection point both graphs

The solution is the point (43,20)

see the attached figure

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It is C.
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7 0
4 years ago
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What is the value of c so that -9 and 9 are both solutions of x2+c=103
Debora [2.8K]

Answer:

c=22

Step-by-step explanation:

Given equation:

x^2+c=103

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To solve for c

Solution:

The solutions of the equation means x=-9 and x=9

We will plugin the solutions in the equation and solve for c

1)  when x=-9

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Subtracting both sides by 81.

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2)  when x=9

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3 years ago
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Step-by-step explanation:

Hope this helps!

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3 years ago
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