Answer:
the answer is here
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Step-by-step explanation:
-2x-10=8
-2x=8+10
X= -18/2
hence X= -9
Answer:
the third side is 4.
Step-by-step explanation:
Using Pythagorean theorem of a^2 + b^2 = c^2 for right triangles, substitute
the numbers to show (
+
=
and solve for b. The square root and square cancel each other out, so you get 65 +
= 81.
Subtract 65 from both sides to get
= 16.
Then take the square root of both sides to get b =
which equals 4.
Answer:
x=4
Step-by-step explanation:
1. isolate the variable by subtracting 7 on both sides: 4x=23-7
2. simplify: 4x=16
3. divide both sides by 4: x=16/4
4. simplify: x=4
The surface area of a rectangular prism is:
A=2(LW+HW+LH) in this case:
A=2(24*13+24*29+13*29)
A=2(1385)
A=2770 mm^2