Answer:
The intersection point is
Step-by-step explanation:
we have
------> equation A
------> equation B
we know that
The intersection point both graphs represent the solution of the system of equations
Using a graphing tool
The intersection point is
see the attached figure
Answer:
b and c, b and c are same
Step-by-step explanation:
Only a and d can be evaluated using simple substitution.
For a, integral of the square root of (x-1)dx i.e
let y = x-1
dy = dx
It becomes integral square root of ydy, ∫√ydy
which is can easily be evaluated and y is substituted back.
For d, integral of x times the square root of the quantity x squared minus 1
let y= x squared minus 1
then dy = 2xdx
dx = dy/2x
It becomes integral x times square root of y dy/2x
∫x√ydy/2x=∫√ydy/2=1/2∫√ydy which can easily be evaluated and y is substituted back
Answer: $12
Step-by-step explanation: 16 - 4 = 12
4 sweets cost 28p altogether
28÷4=7p for each sweet
If each sweet costs 7p, then 7 sweets would be multiplied by 7
7×7p=49p
7 sweets cost 49p
Matt needs 144/18=8 batches to bake all the cookies. An estimate is 140/20=7 because we can take 144 to be close to 140 and 18 to be close to 20. So the estimate is 7, but Matt estimated the number of batches to be more than 10, so he is wrong. So answer C.