Area=legnth times width
(3x+5)(2x+8)=360
first expand
6x²+34x+40=360
minus 360 both sides
6x²+34x-320=0
factor out 2
2(3x²+17x-160)=0
factor inner by trial and error
(2)(x-5)(3x+32)=0
set to zero
x-5=0
x=5
3x+32=0
3x=-32
x=-32/3
false, a dimention can't be negative
x=5
(3x+5)
(3(5)+5)
(15+5)
20
length is 20miiles
(2x+8)
(2(5)+8)
(10+8)
18
width is 18 miles
it is 20 miles by 18 miles
Pretty sure the answer is 2
The word product tells us that we will be multiplying, the word "of" is where the multiplication sign goes, the word "is" is where the equals sign goes, and Mai's score is the unknown, x. In equation form, then, that would look like this:
2x=32
the product of 2 and Mai's score is 2 times x or 2x; "is" means equals. There you go!
<span> −3|x + 7| = −12
* </span><span> −3(x + 7) = −12
-3x - 21 = -12
-3x = -12 + 21
-3x = 9
x = 9/-3
x = -3
</span>
* −3*[ -(x + 7)] = −12
3x + 21 = -12
3x = -12 -21
3x = -33
x=-33/3
x = -11
answer:
x = -11 and x = -3
Answer:
x=3
Step-by-step explanation: