Answer:
length = 18 ft
Step-by-step explanation:
Let w = width
L = w+7
Area = l*w
198 = (w+7) (w)
Distribute
198 = w^2 +7w
Subtract 198 from each side
0 = w^2 +7w -198
Factor
What 2 numbers multiply to -198 and add to 7
18* -11 = -198
18+-11 = 7
0=(w+18) (w-11)
Using the zero product property
w+18 =0 w-11=0
w= -18 w=11
We cannot have negative width so w=11
We want the length
l = w+7
l = 11+7 = 18
Answer:
A. U - 2v = -14i +13j
Step-by-step explanation:
If u = (-2, 5) and v = 6i -4j
Then 2v = 2*(6i-4j) = 12i-8j
u-2v = -2i +5j - (6i -4j)
Distribute the minus sign
-2i +5j -6i+4j
-2i +5j
-12i + 8j
---------------
-14i +13j
Answer:
The cost of the television is 
Step-by-step explanation:
Let
x -----> the cost of the television in dollars
we know that
The cost of the television represent 100%
<em>If Matt pays cash</em>
then
so
The cost is 0.93x
<em>If Matt pays with a loan</em>
then
so
The cost is 1.1x
The difference between the two methods is
Remember that
The difference between the two methods is $49.98
so
Solve for x
Answer:
40
Step-by-step explanation:
15/6 = x/16 6x=240 divide 240 by 6 to get 40
