Answer:
29°
Step-by-step explanation:
SMH sorry it wasnt
A model airplane flew a distance of 330 feet in 15 seconds. Select all unit rates that are equivalent to the speed of the model
2 answers:
Answer:
Option C and D are equivalent to the speed of the model plane
Step-by-step explanation:
Distance = 330 feet
Time = 15 seconds
Speed of airplane =
Convert it into miles per hour
1 feet = 0.000189394 miles
3600 seconds = 1 hour
So, 1 second =
Speed of airplane in miles /hr =
Speed of airplane in miles /hr =
So, Speed of airplane in miles /hr is 15 miles per hour
Convert speed into feet per minute
60 seconds = 1 minute
Speed of airplane in feet / minutes =
Speed of airplane in feet / minutes = 1320 ft/min
So, Option C and D are equivalent to the speed of the model plane
You might be interested in
1. The function 
is a parabola of the form 
. The the formula for the axis of symmetry of a parabola is 
. We can infer from our function that 
and 
, so lets replace those values in our formula:
We can conclude that to the left of the line of symmetry the ball is reaching its maximum height, and to the right of the line of symmetry the ball is falling.
2. Lets check how much time the ball takes to reach its maximum height and return to the ground. To do that we are going to set the height equal to zero:
or 
or 
From our previous point we know that the ball reaches its maximum time at
, which means that <span>it takes 1.5 seconds to reach the maximum height and 1.5 seconds to fall back to the ground.</span>
We can conclude that to the left of the line of symmetry the ball is reaching its maximum height, and to the right of the line of symmetry the ball is falling.
2. Lets check how much time the ball takes to reach its maximum height and return to the ground. To do that we are going to set the height equal to zero:
From our previous point we know that the ball reaches its maximum time at
Answer:
Options (1), (2) and (4).
Step-by-step explanation:
Given question is incomplete; Find the complete question in the attachment.
Triangle ABC is a right triangle.
ΔABC has been dilated by a scale factor of 2 forming ΔA'B'C'.
These are the observations,
1). A and A' will be co-linear.
2). Since the given triangle has been dilated about a point B therefore, after dilation vertex B and B' will at be same location.
3). Length of B'C' = 2BC
4). AB and BC are the segments which will lie on the sides BA' and BC'.
5). Pre-image ABC will be inside the image A'B'C'.
Therefore, Options (1), (2) and (4) will be the answer.
