What are the first four terms of the sequence given by the formula below an=-2n+4

Answers

Answer 1

Answer: an = -2n + 4 ; where n is the sequence number or order.

a1 = -2(1) + 4
a1 = -2 + 4
a1 = 2

a2 = -2(2) + 4
a2 = -4 + 4
a2 = 0

a3 = -2(3) + 4
a3 = -6 + 4
a3 = -2

a4 = -2(4) + 4
a4 = -8 + 4
a4 = -4

So the first four terms of the sequence are: 2, 0, -2, -4

Answer 2

Answer:

The answer is:

2, 0, -2, -4

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Which of the following fractions is equivalent to 3/8?A.6/14
B.9/24
C.4/9
D.15/35

Answers

I'm going to suggest that we take these and "UN-simplify" them.

For each choice, divide the numerator by 3 and the denominator by 8.

Look at this:

A). 6/14

6 ÷ 3 = 2
14 ÷ 8 = 1.875 ===> 2/1.875 not interesting

B). skip B for just a second

C). 4/9

   4 ÷ 3 = 1.33
   9 ÷ 8 = 1.125 ===> 1.33/1.125    not interesting

D). 15/35

   15 ÷ 3 = 5
   35 ÷ 8 = 4.375    ===> 5/4.375 not interesting

But now look at choice-B:

B). 9/24

   9 ÷ 3 = 3
   24 ÷ 8 = 3 ===> 1/1 interesting !

-- To simplify 9/24, the top and bottom were divided by 3, giving 3/8.

-- To UN-simplify 3/8, the top and bottom were multiplied by 3, giving 9/24.

-- Choice-B is the one that's equivalent to 3/8.
______________________________________________

OK. All of that wasn't really necessary.
All you really need to do is take each choice and simplify it.

A). 6/14
   Divide top and bottom by 2 ===> 3/7

B). 9/24
   Divide top and bottom by 3 ===> 3/8

C). 4/9
   Can't be simplified. Already in simplest form.

D). 15/35
   Divide top and bottom by 5 ===> 3/7

Let f(x) = 3x2 + x − 3 and g(x) = x2 − 5x + 1. Find f(x) − g(x).

Answers

Substitute the two functions according to a given condition of function:
f(x) - g(x) = 3x² + x - 3 - (x² - 5x + 1)
= 3x² + x - 3 - x² + 5x - 1
= 2x² + 6x - 4 or 2(x² + 3x - 2)

f(x) - g(x) = 3x² + x - 3 - (x² - 5x + 1)
f(x) - g(x) = 3x² + x - 3 - x² + 5x - 1
f(x) - g(x) = 3x² - x² + x + 5x - 3 - 1
f(x) - g(x) = 2x² + 6x - 4

Use the Special Right Triangle to evaluate sin 60°, cos 60° and tan 60°. Your answers should be exact (not a decimal).A. sin 60 = 1/2, cos 60 = √3/2, tan 60 = √3/3
B. sin 60 = √2/2, cos 60 = √2/2, tan 60 = 1
C. sin 60 = 1, cos 60 = 0, tan 60 = undefined
D. sin 60 = √3/2, cos 60 = 1/2, tan 60 = √3

Answers

sin(60) = ¹/₂√3
cos(60) = ¹/₂
tan(60) = √3

The answer is D.

Answer:

The answer is D.

Step-by-step explanation:

Graph the linear equation 3x=10

Answers

3x = 10
3x = 10
3 3
x = 3¹/₃

What is the solution of the equation x − 8 = 17?
-9
9
25
27

Answers

The solution of the equation is 25 because 25-8 = 17.

What is 5*5+100-99*76

Answers

Answer:

-7399

Step-by-step explanation:

5*5+100-99*76

25 + 100 - 7524

= -7399

Answer:

-7399

Step-by-step explanation:

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