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Whitepunk [10]
3 years ago
8

What is the value of the expression 4 × (2a − 1) if a = 3?

Mathematics
1 answer:
stepan [7]3 years ago
8 0
B I’m going to guess
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PLEASE HELP ME! Find the 10th term of the geometric sequence that has a1 = 400 and A2 = 200.​
algol13

Answer:

I believe the answer is 0.7813

Step-by-step explanation:

Find the difference between 400 and 200, as they are first and second terms. This is going to be 0.5 since it is being divided.

The formula is: a∨n=a∨1(r)^(n-1)

n= the number of the sequence you are looking for

r=0.5

a∨1=400

a∨2=200

400(0.5)^(10-1)

5 0
2 years ago
A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle?
kolezko [41]
(x-center)^2+(y-center)^2=r^2
x^2+y^2=r^2
(5)^2+(-12)^2=r^2
25+144=r^2
169=r^2
r=13
5 0
3 years ago
Read 2 more answers
How do you do absolute value word problems
Dima020 [189]

Answer: For absolute value word problem, every number is positive and always look for key words that tell weather you add, subtract, divide, or multiply.

Step-by-step explanation:

4 0
3 years ago
Evaluate the following numerical expression 2+(-3)+7
zlopas [31]

Answer:

Step-by-step explanation:

2 + (-3) + 7 = 2 - 3 + 7 = 9 - 3 = 6 <==

a positive multiplied by a negative will be negative

6 0
4 years ago
Peyton knows that 18 means “1 divided by 8.” She uses this to find the decimal equivalent for 18. Enter a digit into each box to
IceJOKER [234]

Answer:

Down Here ↓↓↓↓↓↓↓

Step-by-step explanation:

1/8 = 1 ÷ 8

It might be weird with the formatting but here:

 0. 1 2 5

       ____________

8    | 1. 0 0 0

− 0      

 ____________

       1 0    

−           8    

 ____________  

               2 0  

 −         1 6  

  ___________  

               4 0

   −         4 0

  ___________    

                       0

-Chetan K

7 0
3 years ago
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