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Elina [12.6K]
3 years ago
5

Please help me with these two questions

Mathematics
1 answer:
Likurg_2 [28]3 years ago
8 0
You really do need to learn to read the notation.

1) The last sequence is the only one with a first term of -6 and common ratio of 4.

2) Asked and answered elsewhere. The 1st selection is the only one that reproduces the listed terms.
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Identify the property used in the first five steps to solve the equation 2(x – 5) - 6x= -22
USPshnik [31]
<span>To answer this question, you need to multiply the number inside the bracket first. Then you can move the number to the right side of the equal sign and keep the x on the left side of the equal sign. The step would be like this

2(x – 5) - 6x= -22
(2x - 10) - 6x = -22
2x - 6x  = -22 +10
-4x= -12
x= -12/-4
x=3</span>
4 0
3 years ago
An account earns simple interest. (a) Find the interest earned. (b) Find the
Debora [2.8K]

Answer:

#a. $80

#b. $1680

Step-by-step explanation:

We are given;

  • Amount invested (principal) is $1600
  • Rate of interest is 5%
  • Time = 1 year

We are required to determine the amount of simple interest earned and the amount or balance in the account after 1 year.

#a. Interest earned

To calculate simple interest we use the formula;

I = (PRT) ÷ 100

Where, P is the principal, R is the rate, T is the time and I is the simple interest.

Therefore;

I = (1600 × 5 × 1) ÷ 100

 = $80

Therefore, simple interest earned is $80

#b. Balance of the account (Amount accrued)

We are going to use the formula;

A = P + I , where A is the amount accrued, P is the principal and I is the simple interest earned.

Therefore;

Account balance = $1600 + $80

                            = $1680

Thus, the account balance after 1 year will be $1680

8 0
2 years ago
The system of equations shown below is graphed on a coordinate grid:
ankoles [38]

Answer:

A) (-2,2) lies on both lines

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
the area of a square poster is 30 in square. Find the length of one side of the poster to the nearest tenth of an inch​
insens350 [35]

Answer:

x = 5.5 (nearest tenth)

Step-by-step explanation:

let x be the length of 1 side

given area of square poster is 30 in²

and

Area = (length of 1 side )²

hence

30 = x²

x = √30

x = 5.4772

x = 5.5 (nearest tenth)

6 0
3 years ago
A cube has a net with area 600 in2. How long is an edge of the cube?
aev [14]

Answer : The length of an edge of cube is, 10 inches.

Step-by-step explanation :

The formula used for area of cube is:

Area of cube = 6a^2

where,

a = edge

We are given that:

Area of cube = 600in^2[tex]Now put all the given values in the above formula, we get:Area of cube = [tex]6a^2

600in^2=6a^2

a=10inches

Therefore, the length of an edge of cube is, 10 inches.

3 0
3 years ago
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