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Sidana [21]
3 years ago
12

PLEASE HELP I WILL GIVE BRAINLEST

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
4 0
The theoretical probability of getting heads or tails is 1/2 the time.

1/2 of 150 = 75

 So theoretically you would get 75  heads and 75 tails.

The experiment got 84 heads, which is greater than 75, so it would be higher than the theoretical probability.

The answer is : <span>It is 6% higher than the theoretical probability.</span>
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A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books i
dybincka [34]

A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books it buys. The store manager can use the equation P(x)=5x−1.5x to determine the store's profit, P(x), where x is the number of books that the store sells. Which statement about the book store is true based on the profit equation?

Cost Price of book, C.P.=$1.50

Selling Price of book, S.P.=$5

PROFIT=S.P. -C.P.

So, Profit=$5-$1.50=$3.50

So, Profit=$3.50 on each book

Or, we are given P(x)= 5x-1.50x

Or, P(x)=3.50x

For each book, we must divide the profit P(x) by x, that is, number of books

\frac{P(x)}{x}=\frac{3.5x}{x}

\frac{P(x)}{x}=\frac{3.5*1}{1}

\frac{P(x)}{x}=3.5

So, Profit for each book sold is $3.50

Answer:Option C

8 0
3 years ago
Someone help i need an answer
soldi70 [24.7K]

Remember that the formula for the perimeter of a rectangle is:

2w + 2l

  • w is the width of the rectangle
  • l is the length of the rectangle

Thus, in this case, you can see that we are adding two of the same monomials and two of another monomial. One monomial is x + 15 and another monomial is x + 5. In this case, these monomials would fulfill the perimeter equation of a rectangle.


Applying this perimeter structure, we can find that this expression represents a perimeter equation of a rectangle with sides x + 15 and x + 5.

8 0
3 years ago
The inverse of Fx) is a function.<br> A. True<br> B. False
Misha Larkins [42]

Answer:

true

Step-by-step explanation:

In mathematics, an inverse function (or anti-function) is a function that "reverses" another function: if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x, and vice versa, i.e., f(x) = y if and only if g(y) = x.

3 0
3 years ago
Which quadratic equation defines the function that has zeros at -8 and 6?
worty [1.4K]

Well, if 'y' has zeros at  x=6  and  x=-8,
then 'y' must be the product

                     y  =  (x - 6) (x + 8)

Perform the multiplication to get the quadratic function:

                     y  =  x² + 2x - 48

5 0
3 years ago
What is the BEST deal on rice?
Elden [556K]

Answer:

Answer is 10 kg for $35

Step-by-step explanation:

Unitary method

5 0
3 years ago
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