Give the first four terms of a geometric sequence having a1=18 and r = 2.

Answers

Answer 1

Answer: Hello,

$a_(1)=9*2=18$
$a_(2)=9*2^(2)=36$
$a_(3)=9*2^(3)=72$
$a_(4)=9*2^(4)=144$

$a_(n)=9*2^(n)$

Related Questions

The curve ax squared - 4x+1 has a stationary point where x equals -3find the value of a and determine the nature of the stationary point
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
A circle with a 12-inch diameter is folded in half and then folded in half again. What is the area of the resulting shape? Round the nearest whole number.
What is 481 divided by 8?Is it 60 with a remainder of 1 ?
Divide 350 pounds in the ratio 4:2:1

Numbers 20 - 22 please

Answers

$(x+5)(x+2)=x^2+2x+5x+10=x^2+7x+10\n\n (x-1)(2x^2-4x+10)=2x^3-4x^2+10x-2x^2+4x-10=\n =2x^3-6x^2+14x-10\n\n (c^2-10)(4c+3)=4x^3+3c^2-40c-30$

19 of the 23 participants in a triathlon are men and the rest are women. What is the ratio of the number of women participating to the total number of participants?

Answers

Answer:

3:23

Step-by-step explanation:

If 19 of the 23 participants in a triathlon are men then that means there are 4 participants that are women

so the ration would be 4 women for the 23 participants

Final Answer:

The ratio of the number of women participating to the total number of participants in the triathlon is 4:23.

Explanation:

In a triathlon, there are 23 participants in total, with 19 of them being men. To find the ratio of women to the total number of participants, we first need to determine the number of women participating.

To do this, subtract the number of men (19) from the total number of participants (23):

23 (total participants) - 19 (men) = 4 women

Now that we know there are 4 women participating, we can calculate the ratio:

Number of women : Total number of participants

4 : 23

So, the ratio of the number of women participating to the total number of participants is 4:23.

Learn more about Ratio

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Given: 2x + 3y = 6. What is the y-intercept?

Answers

Substituting x=0 , we get
2*0+3y = 6
3y=6
y=2 is the y intercept.

Final answer:

To find the y-intercept in an equation, we set x equal to 0 and solve for y. For the equation 2x + 3y = 6, when x is replaced with 0, it simplifies to 3y = 6. Dividing by 3 gives y = 2, meaning the y-intercept of the line is 2.

Explanation:

The given equation in this question is in the standard form of a linear equation which can be represented in slope-intercept form of y = mx + b, where m is the slope and b is the y-intercept. To find the y-intercept, we'll want to set x equal to 0 and solve for y.

So in this equation of 2x + 3y = 6, we'll set x to 0. That leaves us with 3y = 6. Solve for y by dividing by 3 on both sides. This gives us y = 2, which is the y-intercept.

Learn more about y-intercept here:

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What is –4 • 6 • (–9)? A.
–216

B.
216

C.
–90

D.
90

Answers

it's 216 because you would just do the equation from left to right since pemdas doesn't really effect the order here

Hi there! -4*6=-24. Now, we have (-24)(-9), (-24)(-9)=216. Therefore, your answer is B. 216

John has 12 marbles of different colors, including one red, one green, and one blue marble. in how many ways can he choose 4 marbles, if exactly one of the chosen marbles is red, green, or blue?

Answers

3 ways (uncertain)
1 red or blue or green + 3 other colours

Answer:

252

Step-by-step explanation:

AoPs

Mr. Wilk is a high school math teacher whose salaryis $33,660 for this school year, which has 180 days.In Mr. Wilk’s school district, substitute teachers are paid $85 per day. If Mr. Walker takes a day off without payand a substitute teacher is paid to teach his classes. How much less does the school district pay in salary by payinga substitute teacher instead of Mr. Wilk for this particukar day?

Answers

Mr. Wilk's salary for 180 days = $33,660
Mr. Wilk's salary for 1 day = $?
By unitary method:
Days Salary
180 $33,660
1 ?
By cross-multiplication:
1*33660/180
33660/180 = $187
Mr. Wilk's salary per day = $187
Substitute teacher's salary per day = $85
Difference in salary = 187-85
= $102
The school district pays $102 less to the substitute teacher.

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