Ask question

Ask question

All categories

4 years ago

8

What is the first four terms in the multiplication or ,geometric , pattern in which the first term is 2 and then each term is mu

ltiplied by 7

1 answer:

sesenic [268]4 years ago

6 0

Answer:

the sequence is 2, 14, 98, 686.

Step-by-step explanation:

As we know in any geometric sequence the terms are denoted by

$T_{n}=a(r)^{n-1}$

We have to find the first four terms of geometric sequence which has first term a = 2 and common ratio of the terms r = 7

number of terms = 4

The sequence from the formula will be

$2, 2.7, 2.(7)^{2},2.(7)^{3}$

or the sequence is 2, 14, 98, 686.

You might be interested in

Parker bought a 15-year treasury bond for a face amount of $400. The 3.5% interest will be compounded quarterly. What will the f

MArishka [77]

If you're behind like I am and are just now doing these assignments then good luck on catching up.

If it's AQRB Unit 2 Lesson 3 then the answers to the multiple choice are below, you'll need to do the essay and calculation on your own.

1: $674.64
2: $26, 255.38
3: $191, 398.49
4: $23, 884.84

6 0

4 years ago

How do you solve this math problem-2(x+3y)=18

ss7ja [257]

Greetings!

Solve for <em>x</em>.
$-2(x+3y)=18$
Distribute the Parenthesis. <em>How?</em> Multiply all of the terms inside the parenthesis by the number outside the parenthesis.
$(-2)*x+(-2)*3y=18$
$-2x-6y=18$
Add 6y to both sides.
$(-2x-6y)+6y=(18)+6y$
$-2x=18+6y$
Divide both sides by -2.
$(-2x)/-2=(18+6y)/-2$
The Answer Is:
$x=-9-3y$
$x=-3y-9$

Hope this helps.
-Benjamin

7 0

3 years ago

Which of the following equations have complex roots?

mestny [16]

Answer:

A

Step-by-step explanation:

Complex roots of quadratic functions occur when the <u>discriminant is negative</u>.

<u>Discriminant</u>

$b^2-4ac\quad\textsf{when}\:\:ax^2+bx+c=0$

Evaluate the discriminant of each of the given equations.

$\textsf{A.} \quad 3x^2+2=0$

$\implies a=3, \quad b=0, \quad c=2$

$\implies b^2-4ac=0^2-4(3)(2)=-24$

As -24 < 0 the equation will have complex roots.

$\textsf{B.} \quad 2x^2+1=7x$

$\implies 2x^2-7x+1=0$

$\implies a=2, \quad b=-7, \quad c=1$

$\implies b^2-4ac= (-7)^2-4(2)(1)=41$

As 41 > 0 the equation does not have complex roots.

$\textsf{C.} \quad 3x^2-1=6x$

$\implies 3x^2-6x-1=0$

$\implies a=3, \quad b=-6, \quad c=-1$

$\implies b^2-4ac=(-6)^2-4(3)(-1)=48$

As 48 > 0 the equation does not have complex roots.

$\textsf{D.} \quad 2x^2-1=5x$

$\implies 2x^2-5x-1=0$

$\implies a=2, \quad b=-5, \quad c=-1$

$\implies b^2-4ac=(-5)^2-4(2)(-1)=33$

As 33 > 0 the equation does not have complex roots.

Learn more about discriminants here:

brainly.com/question/27444516

brainly.com/question/27869538

Learn more about complex roots here:

brainly.com/question/26344541

6 0

2 years ago

Salvatore attends class every 4 weeks, chess club every 2 weeks, and fencing lessons every 3 weeks. If he attended all three thi

Amiraneli [1.4K]

Answer:

12

Step-by-step explanation:

Listing the weeks he will attend each item

Class 4,8,12,16

Chess 2,4,6,8,10,12

Fencing 3,6,9,12

Starting today at week 0, he will attend all 3 again at week 12

6 0

3 years ago

Read 2 more answers

I answered wrong what’s the right answer?

olganol [36]

The answer is CBE :)))))

6 0

3 years ago