CAN SOMEONE HELP THIS IS TIMED 1.) What is the formula for the nth term for the following sequence?
12, 9, 6, 3, …
2.)Find the common difference.
1.1, 1.2, 1.3, 1.4, …

i belive

1) an=−3n+15

This is the formula of an arithmetic sequence.

an=a1+d(n−1)

2) b. 0.1

1.1+0.1= 1.2

1.2+0.1= 1.3

1.3+0.1= 1.4

Step-by-step explanation:

i think this is right, sorry, hope this helps!

1). -3         2). plus 0.1

Step-by-step explanation:

ye

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

c-   36

taxicab circle radius 9 has 4(9) = 36 points