Answer:

Step-by-step explanation:
Given

Required
Number of books in 1 week
Represent the number of books in 1 week with x.
So, we have:

Cross Multiply


Convert fraction to improper fraction

Multiply through by 



<em>Hence: 12/7 books were read in a week</em>
Answer:
Yes this represents additive inverse,
Step-by-step explanation:
Since you are subtracting the same number 4 to get to zero.
36 cm²s⁻¹ is the rate at which the area of the square is increasing.
Given each side of the square is increasing at a rate of 6cm/s
Area, A = s², s is the side length
=>
{chain rule of differentiation}
= 6 cm/s
When A = 9 cm² => 9 = s²
=> s = √(9) => s = 3 cm
Hence,
= 2 × 3 × 6 = 36 cm²s⁻¹
Hence, 36 cm²s⁻¹ is the rate at which the area of the square increases
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Answer:
Move the decimal point 3 times to the left.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Two points are given to us and we need to find the slope of the line that passes through these two points . The two points are (3,-2) and (9,-2) .As we know that the slope of the line is given by
<u>Slope of a line is :-</u>

On using this formula we can find the slope of the line .
<u>Putting the respective values :-</u>
