She will use 3 rows of 3 squares, for a total of 9 squares.
Since the shape she is covering is a square, all of the sides are equal. If 3 square tiles fit across the width of the top, then 3 square tiles fit across the length of it as well. This makes 3 by 3, or 9 squares.
4 grams sample will be left after 1 year
Step-by-step explanation:
The decay function for percentage decay is given by:
Here,
a is the initial value
r is the rate
x is the number of time periods
Given
Initial value = 100 grams
Rate = 6% = 0.06
Time = 1 year = 52 weeks
Putting the values in the formula
Hence,
4 grams sample will be left after 1 year
Keywords: Decay, percentage
Learn more about decay functions at:
#LearnwithBrainly
Uhh thats a test...... a or b
Answer:
x = -6
Step-by-step explanation:
A line with an undefined slope is vertical and is always represented by the equation x = a number. That number, whatever it may be, represents the x-value of all the points it intersects. Thus, take the x-value of the point (-6,3) and put it into the equation. So, the equation must be x = -6.
4 blue weights and 3 pink weights.
Blue wieghts 4(10) = 40 kg
Pink wieghts 3(3) = 9 kg
40+9= 49 kg
