3 years ago

A pattern follows the rule "Starting with two, every consecutive line has a number one more than the previous line."

1 answer:

3 0

There will be eight marbles on the 9th line

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Alexxandr [17]

Answer:

172.27 in

Step-by-step explanation:

Apply the Sine Rule

Sine Rule is given as:

$\frac{a}{sin(A)} = \frac{b}{sin(B)} = \frac{c}{sin(C)}$

c = x = ?

C = 180 - (52 + 48) = 80° (sum of triangle)

b = 130 in.

B = 48°

Plug in the values

$\frac{130}{sin(48)} = \frac{x}{sin(80)}$

Multiply both sides by sin(80)

$\frac{130*sin(80)}{sin(48)} = x$

172.274641 = x

x = 172.27 in. (to 2 decimal places)

4 0

2 years ago

Luba_88 [7]

What the heck does that mean

Ahhhhhhhhhhhhhhhhhhhhhhh

6 0

3 years ago

Svetllana [295]

C would be the obvious solution.

4 0

3 years ago

malfutka [58]

The greatest common factor is 3x². The rest doesn't factor.
21x³y² -3x²y +75x⁴ = 3x²(7xy² -y +25x²)

6 0

3 years ago

Mumz [18]

81 is the correct answer

hope it helps you have a good day

7 0

3 years ago