Answer:
P = 20 cm
Step-by-step explanation:
The appropriate formula is P = 2W + 2L.
Here that comes to P = 2(6 cm) + 2(4 cm) = 20 cm
Answer:
The third option, -1/2(30) = -15
Step-by-step explanation:
If it decreases by 1/2, we know it has to be -1/2, and the days we are given are 30. We need to multiply -1/2 by 30 in order to find the water level after 30 days, which would be -15 (inches?) I hope this helped.
Answer:
Length = 24 and width = 6.
Step-by-step explanation:
2L + 2W = 60 where L = length and W = width.
The length must be in the 20's to make a perimeter of 60, as there's no number in the 10's or 30's that has 2 consecutive even integers and 40 something is impossible.
The only length which fits the given conditions is 24.
Then the width would be (60 - 2(24)) / 2 = (60 - 48) / 2
= 6.
That's the answer.
Answer:
M = 32°
Step-by-step explanation:
This is a trigonometric identity, that is
sin²x + cos²x = 1
where x in both cases is the same angle, thus
sin²32° + cos²32° = 1
Hence M = 32°
