Answer:
a = 4.6
b = 4.2
Step-by-step explanation:
to find a, use cos:
⇒ cos = 
⇒ cos 30 = 
cos of 30 is 0.154
⇒ 0.154 =
multiply 13 on both sides:
⇒ 0.154 x 13 = x 13
⇒ 4.62 = a
round to the nearest tenth:
⇒ 4.62 = 4.6
⇒ a = 4.6
to find b, use tan:
⇒ tan = 
⇒ tan 60 = 
tan of 60 is 0.320
⇒ 0.320 =
multiply 13 on both sides:
⇒ 0.320 x 13 = x 13
⇒ 4.16 = b
round to the nearest tenth:
⇒ 4.16 = 4.2
⇒ b = 4.2
Answer:
c 480 square inches your welcome
There are two congruent triangles that are being formed from the lamppost, the light, the ground and the man. Always try to draw a picture for these types of problems. It helps a lot when solving. Your answer should be about 4.3ft
Slope = -1/7
Explanation
Slope is rise/run so the first point goes down by one so the slope is going to be negative and the second point goes to the right 7 times so you get -1/7
Answer:
8(2g + 1)(4g² - 2g + 1)
Step-by-step explanation:
Given
64g³ + 8 ← factor out 8 from each term
= 8(8g³ + 1) ← 8g³ + 1 is a sum of cubes and factors as
8g³ + 1 = (2g + 1)((2g)² - 2g + 1² ) = (2g + 1)(4g² - 2g + 1)
Hence
64g³ + 8 = 8(2g + 1)(4g² - 2g + 1)
