MATHEMATICS HIGH SCHOOL

What is the answer for this?​
What is the answer for this?​ - 1

Answers

Answer 1
Answer:

Answer:

The general formula for nth term of given sequence is:

G_n = 54 . ((1)/(3))^(n-1)

Step-by-step explanation:

Given sequence is:

54,18,6.....

In order to write the general formula of a sequence, first of all the common ratio has to be found. Common ratio is the ratio between consecutive terms of a geometric sequence.

Here\na_1 = 54\na_2 = 18\na_3 = 6\nAnd\nr = (a_2)/(a_1) = (18)/(54) = (1)/(3) \nr = (a_3)/(a_2) = (6)/(18) = (1)/(3)

The general formula is:

G_n = A_1 (r)^(n-1)

Putting the values of a1 and r

G_n = 54 . ((1)/(3))^(n-1)

Hence,

The general formula for nth term of given sequence is:

G_n = 54 . ((1)/(3))^(n-1)

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X^2+2x in factored form

Answers

in factor form, take x as a common factor
x(x+2)

In seven years, Gary will need $50,000 to pay his son's college tuition. If the interest rate is 10 percent, how much should he invest today?A.) $45,264.35
B.) $31,046.07
C.) $25,657.90

Answers

I'd say C, but not to sure...

Answer:

$25,657.90

Step-by-step explanation:

Edmentum

What is the answer M divided by 3+5=2

Answers

Solve for M by simplifying both sides of the equation, then isolating the variable.M=−9

Solve for all values of x by factoring.
x^2-6x+20=6x

Answers

Answer:

x=10 or x=2

Step-by-step explanation:

msg me if ya need step

<3, Red

What are the x-intercepts of the quadratic function?y = –x2 + 2x – 1
(Points : 1)      A. 2 and 1     B.  –2 and 1     C.  2 and –1    D.   1

Answers

y=-x^2+2x-1=-(x^2-2x+1)=-(x-1)^2\ \ \Rightarrow\ \ y \leq 0\n \nC.\ x=2\ \ \Rightarrow\ \ \ y=-(2-1)^2=-1\ \ \Rightarrow\ \ (2;-1)\n \nAns.\ C

If (−3.5, y) is a solution to the equation 2x − 5y = 10, what is the value of y?a) -3.4
b) 13.75
c) -0.6
d) -3.75

Answers

2x - 5y = 10
2(-3.5) - 5y = 10
-7 - 5y = 10
+7          +7
     -5y = 17
      -5     -5
        y = -3.4
The value of y is equal to A. -3.4.
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