❓❓❓Well think of real life problems?
Answer:
16.4
Step-by-step explanation:
To decrease a number by 45% of its value, you subtract the 45%. To get 45%, you multiply the number by 0.45.
So, if x is the original number, then the equation for this word problem would be x - 0.45x = 9.
To solve, we first subtract 0.45x from x, which is 0.55x. This means that 0.55x is equal to 9. To simplify, we can divide both sides by 0.55. 9/0.55 is 16.36363636..., etc. The nearest tenth would be 0.4, so your answer is 16.4
Answer:
Last one
t = 1.5; it takes 1.5 seconds to reach the maximum height of 36 meters.
Step-by-step explanation:
h(t) = −16t² + 48t
h(t) = -16(t² - 3t)
h(t) = -16(t² - 2(t)(1.5) + 1.5² - 1.5²)
h(t) = -16(t - 1.5)² + 36
Axis of symmetry:
t = 1.5
Max height = 36
Hello!
First you have to find the area of the bigger square
When it goes from the center to a corner you multiply the value by 2 to find one side
9 * 2 =18
Now you find the area
18 * 18 = 324
Now we find the area of the smaller region
4 * 2 = 8
Find the area
8 * 8 = 64
Now we subtract these
324 - 64 = 260
The answer is 260
Hope this helps!
