Answer:
An expression that is equal to 3/5 is 3÷5.
Step-by-step explanation:
3/5 is really 3 things are being split amongst 5 things/groups. When you split things .up, it's division. Therefore, the expression would be 3÷5
3 x 4 = 12
618 divided by 12 = 51.5
However, you left a space between the 6 and the 8, so just in case that was meant to be 6.18, here
6.18 divided by 12 = 0.515
275x5=1375
This means that the helicopter has dropped 1375ft closer to the ground, then when it was at x altitude
Answer:
45
Step-by-step explanation:
Assuming this is a trapezoid,
Answer:
31 human cases.
Step-by-step explanation:
The least squares line equation for the number of reported dead birds (x), versus the number of human West Nile virus cases (y) is
y = -10.2638 + 0.0491x
If the number dead birds reported in a year is 844, then we have to find the numbers of human cases of West Nile virus.
To find the numbers we will plug in the value of x = 844 in the linear equation.
y = -10.2638 + 0.0491(844)
= -10.2638 + 41.4404
= 31.1766
≈ 31
Therefore, 31 human cases can be expected.