Answer:
720 divided by 90
Step-by-step explanation:
72 divided by 9 is 8. 720 divided by 9 is 80 because you're keeping the 0, but when dividing, take away the zeros if both numbers have a zero to make it easier
Answer: $42
Step-by-step explanation:
You need to find 60% of 70
10%= 7 (70/10)
60% = 42 (7x6)
so the answer is $42
Answer:
B
Step-by-step explanation:
Answer:
2 ± √3
Step-by-step explanation:
<h3>Solving quadratic equation by completing squares: </h3>
x² - 4x = -1
- Divide the coefficient of x by 2.
4 ÷ 2 = 2
- Now, square the result and add that to both sides of the equation.
2² = 2* 2 = 4
x² - 4x + 4 = -1 + 4
x² - 4x + 4 = 3
x² - 2 * x * 2 + 2² = 3
- Compare it with a² - 2ab + b² . Now , a = x and b = 2
(x - 2)² = 3
- Take square root both sides
x - 2 = ±√3
x = 2 ± √3
<h3>Solutions: x = 2 +√3 ; 2 - √3</h3>
Scale Factor would be 3.
Because 8 x 3 = 24 (which is the length of the larger rectangle)
and 5 x 3 = 15 (which is the width of the larger rectangle)