Answer:
0.375
Step-by-step explanation:
Answer:
77.5 = 12.5t
6.2 mins.
Step-by-step explanation:
The scuba diver was at the sea bed from where the water surface is at 77.5 m height. The ascending speed of the diver is 12.5 m/minute.
a. If the diver take t minutes to reach the water surface, then the equation that models the situation is
77.5 = 12.5t ......(1)
b. If we consider the sea bed as a reference level i.e. zero height, then the sea surface will be at 77.5 m height.
Therefore, in that case, it is reasonable to write the distance 77.5 m as a positive number.
c. Solving the equation (1), we get, t = 6.2 minutes.
So, the diver will take 6.2 mins to reach the surface. (Answer)
Answer:
b = - 2, b = 4
Step-by-step explanation:
Using the distance formula
d = 
with (x₁, y₁ ) = M(3, 1) and (x₂, y₂ ) = N(- 1, b)
d = 
= 
= 
Then
= 5 ( square both sides )
16 + (b - 1)² = 25 ( subtract 16 from both sides )
(b - 1)² = 9 ( take square root of both sides )
b - 1 = ± 
= ± 3 ( add 1 to both sides )
b = 1 ± 3
Then
b = 1 - 3 = - 2 or b = 1 + 3 = 4
Answer:
wheres the question
Step-by-step explanation:
Answer: The area of the bottom figure is 5/8 ft²
Step-by-step explanation: The area of a triangle is half of the base times the height. Multiply the dimensions given, then divide by 2 or multiply by 1/2
The base of the top diagram is obscured by the timer.
The bottom will be 3/4 × 5/3
Multiply numerators straight across : 3 × 5 = 15
Multiply denominators straight across : 4 × 3 = 12
15/12 Simplify to 5/4 and take half (multiply by 1/2)
The result is 5/8 square ft.
