Answer:
(-3,-43) and (3,107)
Step-by-step explanation:
input 25x+32 for y
25x+32=5x²+25x-13
32=5x²-13
-5x²=-45
x²=9
x=+-3
which means you separate the solution
x= -3
x= 3
then input the answers you got for x, in both equations. Then you'll get your y.
y=25(-3)+32
-43
Then check your answer.
Then input the other answer you got for x.
I may be wrong, but I tried and checked my answers.
Answer:
50
Step-by-step explanation:
Im pretty sure
Answer:
grams
Step-by-step explanation:
Given

Required
Determine the mass of 401,000,000 electrons
To do this, we simply multiply the mass of 1 electron by the number of electrons.
This gives:


Express 3653110000 as a standard form

Apply law of indices:


Hence, the mass of 401000000 electrons is 
Answer:

Step-by-step explanation:
( multiply numerator and denominator by y to clear the fractions )
×
= 