Answer:
146.66 hours.
Step-by-step explanation:
Given: Height of snow at the beginning is 84 inches.
Snow melting rate is 0.15 inches per hour.
Now, finding number of hours to reach 62 inches of snow.
First lets find the number of inches reduced.
Reduced inches of snow= 
∴ Reduced inches of snow is 22 inches after melting at 0.15 inches per hour.
Next finding hours to melt 22 inches of snow.
Time= 
⇒ Time= 
Hence, 146.66 hours would it take for the snow to reach 62 inches.
Answer:
<em>m∠A = 143° </em>
Step-by-step explanation:
∠A ≅ ∠B (corresponding angles)
(7x)° + 24° = (3x)° + 92°
7x + 24 = 3x + 92
7x - 3x = 92 - 24
4x = 68
x = 17
<em>m∠A </em>= [7(17) + 24]° <em>= 143°</em>
Answer:
C
Step-by-step explanation:
rotate it 90 clock about vertex = c
Answer:
Please check the explanation.
Step-by-step explanation:
Let suppose we have a point P(x, y) if we rotate our point 90 degrees counterclockwise about the origin, the new coordinates of the image of the point P can be obtained by switching 'x' and 'y' and making 'y' negative.
In other words,
P(x, y) → P'(-y, x)
From the given triangle ΔRST,
The coordinates of the point S is:
According to the rule, if we have a point S(10, 1), after rotations of 90 degrees counterclockwise about the origin, the new coordinates of the image of the point S(10, 1) will be:
S(10, 1) → S'(-1, 10)
Here,
S'(-1, 10) is the image of the original point or pre-image point S(10, 1).
Therefore, the y-coordinate of the point S' is: 10
Answer:
42.9
Step-by-step explanation:
There are many ways to answer this one, the most direct way would be to state that tan(65)=a/20
20tan(65)=a
Using the calculator (set in degree mode)
we find that a ~ 42.9
