1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solniwko [45]
3 years ago
9

What is a possible value for the missing term in the geometric sequence? 18, _, 8

Mathematics
2 answers:
sp2606 [1]3 years ago
4 0
13 because you do 18-8 and you get 10 and divide that by 2 and you get 5 then add 5 to 8 and you get 13 and subtract 5 from 18 and you get 13 as well. Hope that helps
jasenka [17]3 years ago
3 0
Since it's geometric, the ratio between the second and first term is equal to the ratio between the third and secons term.

So, x/18 = 8/x
x^2 = 144
So, x can be either 12, or -12
You might be interested in
Jean bought a $1,980 snow thrower on the installment plan. The installment agreement included a 10% down payment and 18 monthly
Effectus [21]

<u>Solution-</u>

The price of the snow thrower = $1980

He must pay a 10% down-payment and the rest at a $116 monthly payment for 18 months.

<u>A. How much is the down payment</u>

Down payment amount is, 10% of $1980, i.e

=1980\times \dfrac{10}{100}=\dfrac{1980}{10}=\$198

<u>B. What is the total amount of the monthly payments</u>

A monthly payment of $116 for 18 months, i.e

=116\times 18=\$2088

<u>C. How much did Jean pay for the snow thrower on the installment plan</u>

It is the sum of down-payment and total monthly payments, i.e

=198+2088=\$2286

<u>D. What is the total finance charge</u>

It the difference between the original price and the amount paid by Jean, i.e

=2286-1980=\$306

<u> E. If Jean models her payment plan as an arithmetic sequence, give the first term a1 and the common ratio d</u>

As he paid the down-payment of $198 and then a constant monthly payment of $116, so

The first term = 198

common difference = 116

The A.P. series will be, 198, 314, 430, 546, 662,.................., 2286

4 0
3 years ago
Find a point on the curve x^3+y^3=11xy other than the origin at which the tangent line is horizontal.
attashe74 [19]

Compute the derivative dy/dx using the power, product, and chain rules. Given

x³ + y³ = 11xy

differentiate both sides with respect to x to get

3x² + 3y² dy/dx = 11y + 11x dy/dx

Solve for dy/dx :

(3y² - 11x) dy/dx = 11y - 3x²

dy/dx = (11y - 3x²)/(3y² - 11x)

The tangent line to the curve is horizontal when the slope dy/dx = 0; this happens when

11y - 3x² = 0

or

y = 3/11 x²

(provided that 3y² - 11x ≠ 0)

Substitute y into into the original equation:

x³ + (3/11 x²)³ = 11x (3/11 x²)

x³ + (3/11)³ x⁶ = 3x³

(3/11)³ x⁶ - 2x³ = 0

x³ ((3/11)³ x³ - 2) = 0

One (actually three) of the solutions is x = 0, which corresponds to the origin (0,0). This leaves us with

(3/11)³ x³ - 2 = 0

(3/11 x)³ - 2 = 0

(3/11 x)³ = 2

3/11 x = ³√2

x = (11•³√2)/3

Solving for y gives

y = 3/11 x²

y = 3/11 ((11•³√2)/3)²

y = (11•³√4)/3

So the only other point where the tangent line is horizontal is ((11•³√2)/3, (11•³√4)/3).

3 0
2 years ago
If a and b are positive constants and if a(x-y) = b(y-x), what is the value of the ratio of x/y?
Mekhanik [1.2K]

Answer: x/y=1

Step-by-step explanation:

a(x-y)=b(y-x)

(a+b)x=(a+b)y

x/y=1 ans

hope this helps

8 0
3 years ago
SELECT 3 OPTIONS:
Umnica [9.8K]
It’s a positive slope, constant slope, and increasing function. Because it’s a straight line going diagonally to the top right, you know the slope is positive, constant, and the function is positive.
6 0
3 years ago
Which equation best represents the line in the graph​
bulgar [2K]
Answer:

G

Explanation
4 0
3 years ago
Other questions:
  • You buy bottled water in 12- packs that cost $3 each. If u drink 3 bottles per day , what is your cost per week?
    11·1 answer
  • Which expressions are equivalent to 3 1/4 - (-1/2) select all that apply
    11·1 answer
  • Put these numbers from least to greatest -7/8 6/16 -6
    5·1 answer
  • Mary more likely to draw a red ball followed by a green ball or a blue ball among the first two balls to be drawn?
    8·1 answer
  • The equation of a parabola is (y−3)2=20(x+1) .
    11·2 answers
  • Help please i appreactie if you do
    9·1 answer
  • Will give brainly <br> show work<br><br> 23-5•4-2(6-1)
    15·2 answers
  • Genevieve deposited $400 into her bank account. The equation A(t) = 400(1.07) can be used to calcula
    9·1 answer
  • Please help with this!
    11·1 answer
  • Pls help correct asnwers only thx
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!