Answer:
1/2
Step-by-step explanation:
Dividing by 2 is the same as multiplying by 1/2.
The ratio between two numbers can be represented as a fraction.
We can take any two consecutive numbers to find the ratio.
-760/-380=1/2
-380/-190=1/2
The ratio will always be the same no matter which numbers you use.
A was A for the fun of it also I’m just putting anything down cause I put no question
Answer:The left side 13 is greater than right side -3.6 which means statement is true
Answer:
Term to add is (3/8)^2 = 9/64
Step-by-step explanation:
Here, we want to know the value that must be added to make the equation a perfect square.
x^2 - 3/4x = 5
x^2 -3/4x -(3/8)^2+ (3/8)^2 = 5
x^2 -3/4x + (3/8)^2 = 5 + (3/8)^2
= (x-3/8)^2 = 5 + (3/8)^2
So the term to add is (3/8)^2 = 9/64
L=legnth
w=width
a=area
legnth is 3 more than twice its width
l = 3 + 2 times w
l=3+2w
a=65
a=l times w
subsitute
65=lw
l=3+2w
subsitute
65=(3+2w)(w)
65=3w+2w^2
subtract 65 from both sides
0=2w^2+3w-65
if we can factor then we can do
if zy=0 then assume z and/or y=0 so
to factor in ax^2+bx+c form when a is greater than 1,
aw^2+bw+c
2=a
3=b
-65=c
to factor first find
a times c=z
b=t+y
t times y=z
so
a times c=2 times -65=-130
b=3
factor -130
-130=
-1,130
-2,65
-5,26
-10,13
now add them together and see which ones make 3 or -3 (b)
-1+130=129
-2+65=63
-5+26=21
-10+13=3 match
seperate the middle number like that
3w=-10w+13w
so
2w^2-10w+13w-65=0
group
(2w^2-10w)+(13w-65)=0
factor
(2w)(w-5)+(13)(w-5)=0
reverse distribute ab+ac=a(b+c)
(2w+13)(w-5)=0
set each to zero
2w+13=0
w-5=0
solve
2w+13=0
subtract 13
2w=-13
divide 2
w=-6 and 1/2
impossible since width cannot be negative discard
w-5=0
add 5 to both sides
w=5
subsitute
65=wl
65=5l
divide 5
13=l
width=5 feet
legnth=13 feet