Answer:
im guessing C
Step-by-step explanation:
I dont have this exam let me know is I'm right
A ratio equivalent to 3:11 will be multiplying each term by a common term. Eg 3 x 2 : 11 x 2 = 6:22
Answer:
Time, t = 3.125 s
Step-by-step explanation:
The height attained by the ball after it was kicked is given by as a function of time t as :
It is required to find the time until which the ball hits the ground. At that point, h(t) = 0
So,
So, 3.125 seconds before the ball hit the ground.
Hi!
When adding and subtracting negative numbers, just imagine a number line.
For example, let's say we're adding 3 + -7.
Tip: Adding negative numbers is the same as subtracting positive numbers. So 3 + -7 is the same as 3 - 7.
Here's a numberline:
-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5
Now add 3 to negative 7. (or subtract 7 from 3)
-10, -9, -8, -7<em>, -6, -5, </em><em>-4</em><em>, -3, -2, -1, 0, 1, 2</em>, 3, 4, 5
3 + -7 = -4
Let's try subtracting now. How do we solve 5 - (-3)?
Tip: Subtracting a negative is the same as adding a positive. So 5 - (-3) is the same as 5 + 3. Another way of thinking of it, is two minuses make a positive.
Numberline:
-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5
Subtract -3 from 5. (or add 12 to 5)
-5, -4, -3, <em>-2, -1, 0, 1, 2, 3, 4, </em>5<em>, 6, 7, 8</em>, 9, 10
Here are a few more examples.
-7 + -3 (which is the same as -7 - 3) = -10
-8 + 6 = -2
-9 - (-8) (which is the same as -9 + 8) = -1
-9 - 3 = -12
Hope this helps! :)