It’s the light blue one!!!
Answer:
3339/2=1669.5
Step-by-step explanation:
Answer:
X=20
Y=70
Step-by-step explanation:
All angles within a triangle add up to 180
180 - 40 = 140
140 is the top angle of the big triangle
140 + x + x = 180
x = 20
Now use x to find y by subtracting from the right angle (90 degrees)
90 - 20 = 70
70 + 40 + y = 180
Y = 70
Answer:
.25 inches per hour
Step-by-step explanation:
.5 ft
-----------
day
We need to get to inches
1 ft = 12 inches
.5 ft 12 inches
----------- * ------------
day 1 ft
We also need to convert days to minutes
1 day = 24 hours
.5 ft 12 inches 1 day
----------- * ------------ * -------------
day 1 ft 24 hours
6 inches
-------------
24 hours
.25 inches per hour
Answer:
<h3>3 secs</h3>
Step-by-step explanation:
Given the height of the object as it drops from the observation deck expressed as;
h= -16t^2+152
To determine the the time it will take the object to be 8 feet above the valley floor, we will substitute h = 8 into the equation and calculate t as shown;
8 = -16t^2+152
subtract 8 from both sides
8-8 = -16t^2+152-8
0 = -16t^2+144
0-144 = -16t^2
-144 = -16t^2
16t^2 = 144
Divide both sides by 16;
16t^2/16 = 144/16
t^2 = 9
t = √9
t = 3seconds
Hence it will take 3 seconds for the object to be 8 feet above the valley floor
