Answer:
3x - 5 = 10
Step-by-step explanation:
Your reasoning and your answer were both correct. Discuss with the teacher. ("Discuss". DON'T fight.)
Answer:
Exact dimensions:



Approximate dimensions:



Step-by-step explanation:
Let's assume width of rectangle is w ft
The length of a rectangular flower bed is 2ft longer than the width
so,
length =w+2

now, we can find area

now, we can plug it


we are given area =6
so, we can set it equal
and then we can solve for w


we can use quadratic formula


now, we can compare and find a,b and c
a=1 , b=2 , c=-6


we know that dimension can never be negative
so, we will only consider positive value
Exact dimensions:



Approximate dimensions:



Answer:
-(276÷0.12)=-2300
Step-by-step explanation:
Answer:
6.9
Step-by-step explanation:
Use the Pythagorean theorem :
a^2 + b^2 = c^2
so,
11^2 + b^2 = 13^2
121 + b^2 = 169
b^2= 48
b = 6.928
Round to the tenth : 6.9