Answer:
f(-6) = 72
Step-by-step explanation:
Input -6 for x :
2(-6)²
Complete with P.E.M.D.A.S :
2(36)
then :
72
so therefore :
f(-6) = 72
or
f of x equals 72
Answ
$11.00
Step-by-step explanation:
A quick way to do this would be as follows: 1.10 ( 0.50*$20), or $11.00.
0.50($20) gives us the sale price (at half off); that's half of $20, or $10.
The total due is then $10 (item cost) plus $1 (tax), or $11
Answer:
You can't find y in this way
Step-by-step explanation:
You should know the value of x
But you can say
Y=7x
The distance between the tree and the tower is 30√3m.
Justification:
<u>Let the situation be in a right angleABC form as shown in attached figure</u>.
<u>Given the height of the tower is 30m and the angle of depression to the base of the tree measure 30°</u>.
So, In ΔABC
tanθ = p/b
tan30° = 30/BC
1/√3 = 30/BC
BC = 30√3m.