Answer:
y=27;y=−42
Step-by-step explanation:
33−y=6;63+y=21
y=27;y=−42
I hope this helps!
F(x) = 3x⁵ + 6x⁴ - x - 3
The coefficient of a function f(x) is the number that multiplies the x with the highest exponent., that is 3. Answer a)
Answer:
a. no, there are no sufficient data to use
b. assumption b is right
Step-by-step explanation:
a. for the standard deviation to be calculated at 99% confidence, the data needed should be the mean (given), the variate value to be calculated for(not given), the standard deviation(not given), the z value of the normal distribution ( not given),
since there are too many unknown, the data given are not sufficient to calculate.
b. validity of this interval requires that coating layer thickness be at least approximately normally distributed.
we are given
initial amount =1800
so,
P=1800
doubles in value every 7 years
so, we can find function
now, we can plug P=1800
now, we can plug t=42
.............Answer
Answer:
Elimination
x=-5 and y=-8
Step-by-step explanation:
-(5x-4y=7) <--- Multiply by a negative so that y can cancel out
4x-4y=12
=-5x+4y=-7
4x-4y=12
=-x=5
x=-5
5(-5)-4y=7 <--- plug x back in to solve for y
-25-4y=7
+25 +25
-4y/-4=32/-4
y=-8
