The first thing you need to do is:you have a square whose area is 11^2 = 121 square inches.then we are going to multiply the radius to the PI which is 3.14 the area of the circle with radius 4 is equal to 3.14 * 4^2 = 3.14 * 16 = 50.24you need to divide the calculated radius times pi (3.14) you can get the answer and you need to round your answer to the nearest hundredththe probability that the dart will hit within the circle is equal to 50.24 / 121 = 0.4152066116 which is rounded to .04152 or 41.52%this assumes the dart will always hit the square at least.
The mistake made by pearl from solving the quadratic equation is that he didn't equate the equation to zero(0) before solving
<h3>How to solve quadratic equation?</h3>
x² - 3x - 10 = 8
x² - 3x - 10 - 8 = 0
x² - 3x - 18 = 0
x² - 6x + 3x - 18 = 0
x (x - 6) + 3(x - 6) = 0
(x + 3) (x - 6) = 0
x + 3 = 0. x - 6 = 0
x = -3. x = 6
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Answer:
Books'R'Us is proportional. Bargains'R'Us is not proportional.
Step-by-step explanation:
Susan buys books at two stores. At Books'R'Us, she can buy a book for $1.25 each. At Bargains'R'Us, she made a deal to buy a set of 3 books for $4.00 and a set of 5 books for $5.00.
Book'R'Us is proportional because each book costs a consistent value of $1.25. 0 books is $0. 1 book will be $1.25 and 2 books will be $2.50 and 3 books will be $3.75.
Bargains'R'Us is not proportional because each book has a different price depending on the bargain. Though 0 books is $0, a set of 3 costs $4.00 or $1.34 a book. A set of 5 costs $5.00 or $1 per book. The cost is not consistent or constant. It changes from situation to situation. This is not proportional.
Answer:
y = 3.8 - 0.2x.
Step-by-step explanation:
y = k - 0.2x where k is the thickness of the ice before the melting starts and x = the number of weeks.
When x = 7, y = 2.4 therefore:
2.4 = k - 0.2*7
k = 2.4 + 1.4 = 3.8.
So our equation is y = 3.8 - 0.2x.
Answer:
One solution.
Step-by-step explanation:
We have been given an equation . We are asked to find the number of solutions for our given equation.
Let us solve our given equation. Upon combining like terms, we will get:
Therefore, our given equation has only one solution.