Answer:
Find the value of x the value is x=4
3x4=12
12-5=7
Step-by-step explanation:
Answer:
x = 1/2 , x = -1/2
Step-by-step explanation:
Given equation;
169x² - 42.25
Find:
Solution of equation using square root
Computation:
169x² - 42.25
We know that 13² = 169 and 6.5² = 42.25
So,
[13x]² - [6.5]²
a² - b² = (a + b)(a - b)
So,
[13x]² - [6.5]² = [13x + 6.5][13x - 6.5]
So,
13x + 6.5 = 0 , 13x - 6.5 = 0
x = 6.5 / 13 , x = -6.5 / 13
x = 1/2 , x = -1/2
Answer:
Last one is 90 and -65, 3rd one is 120 feet i think, and i am 99% sure 2nd one is 129
Step-by-step explanation:
Answer:
The length of fencing will be 
Step-by-step explanation:
Step 1
Find the dimensions of the rectangle
we know that
The area of a rectangle is equal to
In this problem we have
so
-----> equation A
-----> equation B
Substitute equation B in equation A
square root both sides
Find the value of b
-----> 
step 2
Find the length of fencing
The perimeter of a rectangle is equal to
we have
substitute
Answer:605052^11
Step-by-step explanation:
