<h3>
Answer: Choice C</h3>
Work Shown:
In the third step, I used the rule that 
. You subtract the exponents when dividing exponents of the same base.
After that, I used the rule 
which is the same as saying 
to end up with choice C as the answer.
Answer:
522
Step-by-step explanation:
Answer:
x = 27 and y = 17 is the solution the the given pair of equations.
Number of dinosaur's rib = x = 27
Number of dinosaur's arm = y = 17
Answer:
$19.62
Step-by-step explanation:
To round 19.623 to the nearest cent consider the thousandths’ value of 19.623, which is 3 and less than 5. Therefore, the cents value of 19.623 remains 2.
$19.623 rounded to the nearest cent = $19.62
Answer: first choice 14.142 ft
Explanation:
1) Side length of the square: x
2) Use the Pythagorean theorem to relate the side lenght with the diagonal:
diagonal² = x² + x² = 2x²
3) Clear x:
x² = diagonal² / 2
⇒x = √(diagonal² / 2) = diagonal /√2 = diagonal √2 / 2
4) subsitute diagonal = 5 ft
⇒ x = 5 ft √2 / 2 ≈ 3.536 ft
5) The perimeter of the square is 4 times the side length:
Perimeter = 4 × 3.536 ft = 14.142 ft
