3 years ago

Find the common ratio of the geometric sequence:

Mathematics

1 answer:

STatiana [176]3 years ago

6 0

Answer:

1/2 must be answer... t2/t1 in geometric

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Are these triangles similar?<br><br>A) Yes<br>B) No

andrew11 [14]

Answer:

B) No

Step-by-step explanation:

They are not similar because if you add all three angles, they add up to 179. Every triangle is supposed to have 180°.

5 0

3 years ago

Find the length of the darkened arc. Leave your answer in terms of pi.

jonny [76]

Answer:

$\frac{15 }{4} \pi \:$

Step-by-step explanation:

Radius of circle (r) = 18/2 = 9 ft

Central angle = 180° - 30° = 150°

$length \: of \: arc \\ = \frac{150 \degree}{360 \degree} \times 2\pi \: r \\ \\ = \frac{150 \degree}{360 \degree} \times 2 \times \pi \: \times 9\\ \\ = \frac{5 }{12 } \times 18 \times \pi \: \\ \\ = \frac{5 }{4} \times 3\times \pi \:\\ \\ = \frac{15 }{4} \pi \:$