To answer the question above, raise both sides of the equation to the power of two.
(sqrt (2x + 1))² = 3²
This will simplify into,
2x + 1 = 9
Solving for the value of x gives an answer of x = 4. This value is not an extraneous root as it satisfy the original equation even if it is inside the radical sign. (I hope this is right)
Answer:
(a) between 300 grams and 350 grams (b) 95% (c) 5% (d) 83.85%
Step-by-step explanation:
We have that 
grams and 
grams. Let's compute the following figures to use the empirical rule
using the image below that was made it with help of the empirical rule we find the next figures
(a) About 68% of organs will be between 300 grams and 350 grams
(b) 95% of organs weights between 275 grams and 375 grams
(c) 5% of organs weights less than 275 grams or more than 375 grams
(d) 83.85% of organs weights between 300 grams and 400 grams
Answer:
c
Step-by-step explanation:
yes
Answer:
Quantity of solution B required is 300 ml
Step-by-step explanation:
Let "a" be quantity of solution A required
Let "b" be quantity of solution B required
We are given Solution A is 19% alcohol and Solution B is 14% alcohol and that the resulting mixture has 156 milliliters of pure alcohol
Thus;
0.19a + 0.14b = 156 - - - (eq 1)
Also, He uses twice as much Solution A as Solution B.
Thus;
a = 2b
Putting 2b for a in eq 1 gives;
0.19(2b) + 0.14b = 156
0.38b + 0.14b = 156
0.52b = 156
b = 156/0.52
b = 300 ml
Quantity of solution B required is 300 ml
