Answer:
1.8
Step-by-step explanation:
Solve for x
90
x
=
81
+
25
x
2
Subtract
25
x
2
from both sides of the equation.
90
x
−
25
x
2
=
81
Subtract
81
from both sides of the equation.
90
x
−
25
x
2
−
81
=
0
Factor the left side of the equation.
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−
(
5
x
−
9
)
2
=
0
Multiply each term in
−
(
5
x
−
9
)
2
=
0
by
−
1
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(
5
x
−
9
)
2
=
0
Set the
5
x
−
9
equal to
0
.
5
x
−
9
=
0
Solve for
x
.
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x
=
9
5
The result can be shown in multiple forms.
Exact Form:
x
=
9
5
Decimal Form:
x
=
1.8
Mixed Number Form:
x
=
1
4
5
Upgrade to
The answer is negative 21
Answer:
See Explanation
Step-by-step explanation:
Given
Required
Determine the number of cans for the wall
The dimension of the wall is not given. So, I will use the following assumed values:
First, calculate the area of the wall
If
Then 
Cross Multiply:
Make x the subject
400 cans using the assume dimensions.
So, all you need to to is, get the original values and follow the same steps
Answer:
UB: 375
Step-by-step explanation:
370mm to 2 sig figs..
UB: 375
LB:365
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