Answer:
144cm²
Step-by-step explanation:
Area of square A Aa = La²
Area of square B Ab= Lb²
If the length of each side of square B is 4cm greater than the length of each side of square A, then;
Lb = La + 4 ... 1
Also if the area of square B is 70cm² greater than the area of square A, then;
Ab = Aa + 70
Since Aa = La² and Ab = Lb²
Lb² = La² + 70 ...2
Substitute 1 into 2;
(La+4)² = La²+70
Expand
La²+8La+16 = La²+80
8La+16 = 80
8La = 80 - 16
8La = 64
La = 64/8
La = 8cm
Since Lb = La + 4
Lb = 8 + 4
Lb = 12cm
Area of square B = Lb²
Area of square B = 12²
Area of square B = 144cm²
Answer:
Number of term N = 9
Value of Sum = 0.186
Step-by-step explanation:
From the given information:
Number of term N = 
Number of term N = 
Number of term N = 9
The Value of the sum can be determined by using the expression for geometric series:

here;
m = 5
n = 9
r = 0.5
Then:




Answer:
0.35 is one thousandth of 350
Step-by-step explanation:
Let
x ----> the number
we know that
The number multiplied by one thousandth must be equal to 0.35
so
The linear equation that represent this situation is

solve for x
Multiply both sides by 1,000

therefore
0.35 is one thousandth of 350
Answer:
nice
Step-by-step explanation:
Answer:
See below
Step-by-step explanation:
The interval must be chosen so that the function is one-to-one, and the sine and cosine functions are not one-to-one on the same intervals.