Answer:
7(x+11)=9x-18
7x + 77 = 9x - 18
7x - 7x + 77 = 9x - 7x - 18
77 = 2x - 18
18 + 77 = 2x - 18 + 18
95 = 2x
95/2 = 2x/2
x = 47.5
Step-by-step explanation:
1. distribute the bracket
2. subtract 7 from both sides
3. add 18 to both sides
4. divide both sides by 2
Answer:
\frac{A+c}{b}
Step-by-step explanation:
\frac{A}{b}+\frac{c}{b}
The value closest to predicted value is 1.258
Step-by-step explanation:
The question requires you to substitute the value of x=4.8 in the least-squares regression line
The equation given is log (y)= 7.3 - 1.5x
Replacing x with real value, 4.8 you will have;
log(y) = 7.3 - 1.5(4.8)
log(y)= 7.3-7.2
log(y)=0.1
y=10^0.1
y=1.258
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Keywords: exponential relationship,least-squares regression line,logarithm
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