Basically either subsitute or solve
I will simplify to make easier work
so PEMDAS
Parenthasees
Exponents
multiply or divide whichever comes first
add or subtract whichever comes first
9 times 8=72
I will assume that x2=x^2 or x squared so left is simplified
x^3+x^2 so
72-2x+x^2<u>></u>x^3+x^2
subtract x^2 from both sides since they cancel each other out
72-2x <u>></u> x^3
add 2x to both sides
72 <u>></u> x^3+2x
factor
72 <u>></u> x(x^2+2)
now subsitute 7,6,5,4
if x=4 then
4(4^2+2)=4(16+2)=4(18)=72
72 <u>></u> 72
true
since all the other numbers are smaller, the only sentence that will work is 7 or A
the answer is A 7
Answer:
k =
Step-by-step explanation:
Fisherman noticed a stretch in the spring = 'b' centimetres
Weight of the fish = a kilograms
If force applied on a spring scale makes a stretch in the spring then Hook's law for the force applied is,
F = kΔx
Where k = spring constant
Δx = stretch in the spring
F = weight applied
F = mg
Here 'm' = mass of the fish
g = gravitational constant
F = a(9.8)
= 9.8a
Δx = b centimetres = 0.01b meters
Therefore, 9.8a = k(0.01b)
k =
k =
Therefore, spring constant of the spring will be determined by the expression, k =
The two vertical angles are FDE and JDI
Answer:
You should get -20
Step-by-step explanation:
;)
I think you just use the formula v= lXwXh. Volume equals length times width times height