Answer:
The answer to your question is: third option is correct.
Step-by-step explanation:
The third option is correct
4(-2)⁻²(4)⁻³
Answer:
201.143 (approx.) cm²
area of circle = (pi)x(radius)^2
= 22/7 x (8)^2
=22/7 x 64
= 1408/7
= 201.142857143
= 201.143 cm^2 (approx.)
Answer:
See below ~
Step-by-step explanation:
We need to represent the situations as inequalities.
===============================================================
<u>Students can work </u><u>no more than</u><u> 23 hours per week</u>
⇒ Let the hours per week be x
⇒ 'no more than' refers to less than or equal to (≤)
⇒ x ≤ 23
=============================================================
<u>Tutors are required to spend </u><u>at least</u><u> 2 hours per week</u>
⇒ At least refers to greater than or equal to (≥)
⇒ x ≥ 2
============================================================
<u>Tutors should spend </u><u>no more than</u><u> 7 hours per week</u>
⇒ As mentioned before, no more than refers to less than or equal to (≤)
⇒ x ≤ 7
Answer:
9
Step-by-step explanation:
area of a circle = pi times radius^2
254.34= 3.14 X r^2 get rid of 3.14 by dividing both sides by 3.14
254.34/3.14= r^2
81= r^2
find the square root of 81=9
