Answer:
See below
Step-by-step explanation:
Part A: $125 is constant.
PART B: Earning depends on hour
Answer:
Dimensions of original room = 12 x 12 feet.
Explanation:
Let the size of old square room be a x a.
New dimension = ( a+4 ) x ( a + 6 )
We have area of the new room will be 144 square feet greater than the area of the original room.
So, ( a+4 ) x ( a + 6 ) = a x a + 144
a²+10a+24= a²+144
10a = 120
a = 12 feet.
Dimensions of original room = 12 x 12 feet.
Answer:
The value of π = 22/7 = 3.14
So here the Equation given we can examine those
1. 3π -1 > 9
=> (3 * 3.14 ) -1 > 9
=> 9.42 – 1 > 9
=> 8.42 > 9 , which is false
2. 7π > 21
=> (7 * 3.14) > 21
=> 21.98 > 21 , Which is true
3. π + 4 < 7
=> 3.14 + 4 <7
=> 7.14 <7 , Which is false
4. (12/ 4π) > 1
=> {12/ (4 * 3.14)} > 1
=> (12/12.56) > 1
=> 0.955 > 1 , Which is false
Know more about “Mathematical equation ” here: brainly.com/question/116018
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The formula for the triangular sequence is Xn=n(n+1)/2
So X25=25(25+1)/2=325