Answer:
t=4 seconds
Step-by-step explanation:
The height of the water jacket that is projected vertically upward is given by the equation:
We want to find the time that, the rocket reaches the ground.
When the rocket reaches the ground, the height , h becomes 0.
This implies that:
Subtract 20 from both sides:
Divide through by -5;
Take square root:
l
Therefore the feasible time is after 4 seconds.
Answer:
z = 70
x = 6
Step-by-step explanation:
Z and 70 are vertical angles so they are equal
z = 70
12x+38 and 70 are supplementary angles so they form a straight line
This means they add to 180 degrees
12x+38 + 70 = 180
Combine like terms
12x+108 = 180
Subtract 108 from each side
12x+108-108= 180-108
12x = 72
Divide each side by 12
12x/12 = 72/12
x = 6
Answer:
II case.
Step-by-step explanation:
Given that a catering company prepared and served 300 meals at an anniversary celebration last week using eight workers.
The week before, six workers prepared and served 240 meals at a wedding reception.
Productivity is normally measured by number of outputs/number of inputs
Here we can measure productivity as
no of meals served/no of workers
In the I case productivity =
In the II case productivity =
Obviously II case productivity is more as per worker 40 meals were served which is more than 37.5 meals per worker in the I case.
One of the rules of triangles is that if you have a 45 45 90 angle triangle, the two sides besides the hypotenuse are equal to each other. In this case, one of the sides is equal to x, so other side is equal to x as well. Now, to solve for x, you need to know the Pythagorean theorum:
Both 'a' and 'b' are equal to x, and 'c' is equal to 3, so I'll make the substitutions below:
This can be simplified to:
Now we just solve for x:
Solution:
Answer:
No
Step-by-step explanation: