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aleksandr82 [10.1K]
3 years ago
10

The nth term can of a geometric sequence?

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
8 0

Answer:

a1= 1   r= 3

a1= 8  r= 1/2

a1= 4  r= -4

second part of question below

Step-by-step explanation:

Which of the following is the rule for the geometric sequence 1, 3, 9, 27, . . .?

answer: a(n)= 1 x 3^n-1

Mars2501 [29]3 years ago
4 0

Answer:

1 and 3

8 and 1/2

4 and -4

Step-by-step explanation:

1 is the first term, and then if you keep multiplying by 3 you get the other numbers.

8 is the first term, and if you keep multiplying by 1/2 you get the other terms.

4 is the first term, and if you keep multiplying by -4 you get the continuing numbers.

Hope this helps!

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1. Triangle STU with vertices S(-4, 2) T(5, -1),
Alexus [3.1K]

Answer:

S’ (-5,-3)

T’ (4,-6)

U’ (-3,-7)

Step-by-step explanation:

Basically, we want to apply the given transformation rule of the axes to get the coordinates of the images

The rule is that we subtract 1 from the x-coordinates and also subtract 5 from the y-coordinates

Thus, we proceed as follows;

S’ = (-4-1, 2-5) = (-5,-3)

T’ = (5-1, -1-5) = (4,-6)

U’ = (-2-1,-2-5) = (-3,-7)

4 0
2 years ago
PLEASE HELP !!!
GrogVix [38]
<h3>Answer: D. 80% of the home’s value</h3>

============================================================

Explanation:

As you probably expect, the first number 80 refers to the percentage the first loan covers. If the house is say $100,000, then the first loan is $80,000 while the second loan is the remaining $20,000.

An 80/20 mortgage, or similar, will have two monthly payments because you are getting two mortgages bundled together. Usually you should pay a down payment, though it may likely depend on your credit history. Those with good credit will pay less or no down payment, compared to those with worse credit will have to pay more down payment. A good rule of thumb is that 20% of the home's value is made as down payment, though this isn't what the "20" in "80/20" is referring to.

An 80% down payment is extremely high and unreasonable. Not many people have that kind of money laying around. A similar story applies to a 20% interest rate which is incredibly large for a mortgage rate (typically they are in the single digits such as 3%).

7 0
3 years ago
14. The area of a rectangle is 375 square inches and it’s perimeter is 80 inches. Find both the length and width.
Pavel [41]

Answer:

Length  =25 inches

Width = 15 inches

Step-by-step explanation:

Let l = length of rectangle, w = width of rectangle

Given the area and the perimeter of the rectangle, we can write:

lw = 375

2l+2w=80

So:

l+w = 80\div2

=40

l=40-w

Now, we can use substitution to find the value of w:

lw = 375

(40-w)w = 375

40w-w^2 = 375

375+w^2-40w = 0 (Quadratic equation)

(w-15)(w-25) = 0

∴ w = 15, 25

We can use substitution again to find the value of l

lw = 375

l=375\div w

=25,15

∵ Length usually refers to the longer side of a rectangle, ∴ length =25 inches and width =15 inches.

Hope this helps :)

8 0
2 years ago
Can you guys see now? (No files pls)
denis23 [38]

Answer:

yes

Step-by-step explanation:

6 0
3 years ago
Solve 2x+3y=18 equation
Nina [5.8K]
Here's the graph of your equation, instructions on how to plot is in the image. if there's a second line equation, you could use the method shown to plot that too, and the x and y values of the intersection point would be your answer. 

you could also use algebra to simultaneously solve the two equations to obtain x and y as well, feel free to ask!

hope that helps :) sorry it's not a definite answer

5 0
3 years ago
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