x = -21
explanation: a trick i used was just do -3 times 7 and get my answer -21. if you are unsure if the answer is right just check your work with a calculator. -21 divided by 7 is -3 so -21 is the value of x. please mark brainliest !!
Let x=annual interest rate of 18000 investment.
Then
18000*x - 9000(x-0.006)=648
Solve for x
18000x-9000x+9000*0.006=648
9000x=648-54=594
x=594/9000=0.066
Answer:
the annual interest rate of the 18000 investment is 6.6%
the annual interest rate of the 9000 investment is 6.0%
;)
♨
⤻ Before solving the given question , you should know the answer of these questions :
✺How do you find the hypotenuse , perpendicular and base when the angle ( ) is given ?
⇾ The longest side , which is the opposite side of right angle is the hypotenuse ( h ). There are two other sides , the opposite and the adjacent. The naming of these sides depends upon which angle is involved. The opposite is the side opposite the angle involved and it is called the perpendicular ( p ) . The adjacent us the side next to the angle involved ( buy not the hypotenuse ) and it is called the base ( b ).
☄
In the above cases , is taken as the angle of reference.
♪ Our Q/A part ends up here! Let's start solving the question :
❈
- Perpendicular ( p ) = ? , Hypotenuse ( h ) = 18 & base ( b ) = 16
✧
- Value of tan
✎
Firstly , Finding the value of perpendicular ( p ) using Pythagoras theorem :
❃ [ Pythagoras theorem ]
Okey, We found out the perpendicular i.e . Now , We know :
❊
⟿
۵ Yay! We're done!
♕
- Never lose hope & keep on working ! ✔
ツ Hope I helped!
☃ Have a wonderful day / evening! ☼
# StayInAndExplore ☂
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Answer:
-180
Step-by-step explanation:
Plug 3 in for x and -6 for y.
36(3) – 8(-6)²
108 – 288 = ‐180
Answer:
C.
Step-by-step explanation:
If you are distributing, you must distribute the outside to both terms in the inside.