Answer: Width: 3.5 Length:10
Step-by-step explanation:
width=x
length=2x+3
area=35
x(2x+3)=35
2x^2+3x=35
2x^2+3x-35=0
(2x-7)(x+5)=0
x obviously cannot be negative ,so x=3.5
<span>We convert the sentences to mathematical expressions as follows
"</span>Four times the sum of the least and greatest integers" : 4[n+(n+2)]
"is 12 less than three times the least integer": = 3n-12
So we have:
4[n+(n+2)]=3n-12 (this is the equation)
4[2n+2]=3n-12
8n+8=3n-12
8n-3n=-12-8
5n=-20
n=-20/5=-4
Answer: the equation is 4[n+(n+2)]=3n-12 , the least integer is -4
Answer:
Step-by-step explanation:
substitution
2x(2)-3x+2
2(-5)(2)-3(-5)+2
-10(2)+15+2
-20+17
-3
Answer:
BD=5.5
Step-by-step explanation:
11 divided by 2 gives you the answer