Answer:
2(n+1)+2
You start with two greens and two columns of two orange squares while adding two orange squares each time. So, the bolded part is the green squares that stay the same. The 2(n+1) represents the two orange columns that increase by one block on each side per image.
9514 1404 393
Answer:
a = √(b² +c² -2bc·cos(A))
a = √(c² -b²)
Step-by-step explanation:
For sides a, b, c, and opposite angles A, B, C, the general form of the law of cosines is ...
a² = b² + c² -2bc·cos(A)
An expression for 'a' can be written by taking the square root.
a = √(b² +c² -2bc·cos(A))
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If you recognize that cos(A) = b/c, then a substitution can be made:
a = √(b² +c² -2(bc)(b/c)) = √(b² +c² -2b²)
a = √(c² -b²) . . . . . . . same as the Pythagorean theorem
More than it because they are negatives
Answer:
Step-by-step explanation:
The translation to a math expression is ...
<em>The sum of a number and 5 is negative 28.</em>
x + 5 = -28
Subtract 5 from both sides of the equation:
x + 5 - 5 = -28 -5
x = -33
The number is negative 33.
Answer:
15/3=5
Step-by-step explanation:
Crystal has played the piano for 5 times longer than Jane.