Answer: $157.50 is the sale price
Step-by-step explanation:
because there is a 25% discount, 75% of the regular price will be the sale price
75% x 210 = $157.50 is the sale price
Disregarding air friction, the distance traveled by an object due to gravity is : H = 0.5*g*t^2. g is the gravitational constant at the surface of earth.
g= 9.81 m/s^2
After 3 seconds, Distance = .5*9.81*9 = 44.15 meters traveled.
Since it was dropped from a height of 90 meters, the current height is 90 - 44.15 = (a) 45.85 meters
(b) It has to travel 90 meters to hit the ground . So we must find t
Using the same equation
t = (2*H/g)^.5
t = (2*90/g)^.5 = 4.28 seconds until it hits the ground
<h3>
Answer: Choice C</h3>
2 x 3 = 3 x 2
Explanation:
The commutative property of multiplication says we can multiply any two numbers in any order we want. The general rule is a x b = b x a, where x represents the multiplication symbol. The 'a' and 'b' can be any two numbers you want.
Choice C shows an example of this. Either side simplifies to 6.
Another example would be 4 x 5 = 5 x 4 where both sides become 20.
The volume of the rectangular pyramid with the given dimensions is: 1,890 cubic millimeters.
<h3>What is the Volume of a Rectangular Pyramid?</h3>
Volume of rectangular pyramid = 1/3(length × width × height)
Given the following:
- Length = 21 mm
- Width = 18 mm
- Height = 15 mm
Volume of the rectangular pyramid = 1/3(21 × 18 × 15)
Volume of rectangular pyramid = 1,890 cubic millimeters.
Learn more about volume of rectangular pyramid on:
brainly.com/question/924442
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Answer:
The area of Chen's office (if that's what you're looking for) is 120.9 feet
Step-by-step explanation:
All I did was a = lw, the formula for finding the area of something using length and width
a = lw
a = 15.5 × 7.8
a = 120.9
Hope this helped.
