Answer:
z = -6
Step-by-step explanation:

Hope this helps.
Answer:
<h2>19,600 J</h2>
Step-by-step explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
We have
PE = 500 × 9.8 × 4
We have the final answer as
<h3>19,600 J</h3>
Hope this helps you
Step-by-step explanation:
x-x-42=0 =x^2-42=0=x^2=0-42=x^2=42
Answer:
Step-by-step explanation:
-8-10,-12-14
-8 plus -12 is -20
-20 times 5 is -100
-14 times 8 is -112
-100 is 12 more than -112
Note that the tenth place value is 8 (bolded):
243.875
Look at the place value directly right of the bolded number (hundredth place value). It is a 7. Because 7 is greater than 5, round up
243.875 rounded to the nearest tenth = 243.9
243.9 is your answer
hope this helps