surface area of the box?
12.5 in.
10 in.
5 in.
7.5 in.
Answer:
The surface area is: 225 in²
Step-by-step explanation:
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Area of each triangular base:
Area of the rectangular faces:
Add to find the surface area:
Thus, the surface area is : 225²
Answer:
Step-by-step explanation:
rectangle measure (x + 3) and (x - 2). What is the value of x? (Type the final
answer as x=# without any space. Example: x=35 If there are two possible
values of x, write the final answer as follows: x=35 and x=36) *
The value of x is 12
The dimensions of the rectangle are given as:
The area is given as:
The area of a rectangle is:
So, we have:
Expand
Subtract 150 from both sides
Factorize the above equation
Solve for x
or
The value of x cannot be negative.
So, the value of x is 12
Read more about areas at:
Answer:
The only possible value of x is 12
Step-by-step explanation:
The rectangular shape has an area of 150 square units. The sides of the rectangle measures (x + 3) and (x - 2). The value of x can be computed below
area of a rectangle = length × breadth
area = 150 unit²
The sides are (x + 3) and (x - 2)
Therefore,
(x + 3)(x - 2) = 150
x² -2x + 3x - 6 = 150
x²+ x - 6 = 150
x²+ x - 6 - 150 = 0
x²+ x - 156 = 0
(x - 12)(x + 13) = 0
Therefore,
x = 12 or x = -13
It cannot be - 13 because the sides cannot result to negative . We are left with only 12.
x = 12
The only possible value of x is 12
c (+16) + (-16) =
d (+16) - (-16) =
e (+16) + (+16) =
f (+16) - (+16) =
g (-16) + (+16) =
h (-16) - (+16) =
AYUDAA
Answer:d
Step-by-step explanation:
Answer:
Lila is correct and Rob is incorrect because she apply wrong property.
Step-by-step explanation:
Given : Rob and Lila try to simplify
Rob simplifies the expression and gets 360. Lila simplifies it and gets 324.
To find : which student is correct and what error did the other student.
Solution: First we simplify the expression:
The solution of the expression is 324 which means Lila simplifies correct.
The mistake is found in Rob,
She simplify like and she put this in equation
which is totally in correct.
because she use wrong property.