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3 years ago

PLEASE HELPPPPP!!!! (answer in decimal)

Mathematics

1 answer:

kakasveta [241]3 years ago

4 0

Answer:

$\approx 0.482659$

Step-by-step explanation:

The experimental probability is the chance of an event happening based on data, or rather the experiment results, and not on a theoretical calculation. In essence, a theoretical calculation can be described by the following formula:

$\frac{desired}{total}$

However, the experimental probability can be described with the following formula:

$\frac{number\ of\ desired\ outcomes}{number\ of \ trials}$

The number of trials is the sum of the number of outcomes. In this case, the desired outcome is tails. Therefore, the experimental probability can be described using the following formula:

$\frac{tails}{total}$

One can also rewrite the formula as the following. This is because the total is the sum of the number of the two outcomes:

$\frac{tails}{heads+tails}$

Substitute,

$\frac{167}{167+179}$

Simplify,

$\frac{167}{346}$

Rewrite as a decimal:

$\approx 0.482659$

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Simplify 18 - 2[X + (x - 5)]. 8- 4x 28 - 4x 28 - 2x

malfutka [58]

Answer:

28 - 4x

Step-by-step explanation:

$18 -2 [x + (x - 5)] \\ = 18 - 2 [x + x - 5] \\ = 18 - 2 [2x - 5] \\ = 18 -4x + 10 \\ = 28 - 4x \\$

5 0

4 years ago

miranda went to the music store to purchase some items. the sales tax was 5 percent per item. if she bought a dvd for $19, how m

posledela

$19/1.05= $18.095 rounds to $18.10
The sale tax on the item is $0.90

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3 years ago

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One zero of f(x)=x^3-2x^2-5+6 is 1 what are the other zeros of the function

noname [10]

Answer:

the other zeros of this function are {-2, 3}

Step-by-step explanation:

Use synthetic division to find the roots. The coefficients of this cubic function are 1, -2, -5, 6, and we begin by using 1 as our first divisor:

1 / 1 -2 -5 6

+1 -1 -6

--------------------------

1 -1 -6 0

Because the remainder is zero (0), we can conclude that 1 is indeed a root of the given polynomial. The quotient is 1x^2 - 1x - 6, whose roots can be found either through synthetic division or factoring. In this case the factors are (x - 3) and (x + 2), so the other zeros of this function are {-2, 3}.

8 0

3 years ago

The owner of a video game store creates the expression −2x2 + 24x + 174 to represent the store's weekly profit in dollars, where

Semmy [17]

Answer:

$-2(x-6)^2+246$ , x = $6

Step-by-step explanation:

The expression $-2x^2+24x+174$ to represent the store's weekly profit in dollars, where x represents the price of a new video game.

Let $f(x)=-2x^2+24x+174$

We need to rewrite this quadratic function in the vertex form.

$f(x)=-2(x^2-12x)+174$

$f(x)=-2(x^2-12x+36)--2(36)+174$

$f(x)=-2(x^2-12x+36)+72+174$

$f(x)=-2(x-6)^2+246$

The equivalent expression that reveals the video game price that produces the highest weekly profit is $-2(x-6)^2+246$

and the price is $6

6 0

3 years ago

Read 2 more answers

How do u guys solved this?

TEA [102]

Answer:

3 boxes

Step-by-step explanation:

First, we need to find the area of the whole square, so we can find out how much to subtract from. We can easily do this by multiplying 16 by 16, since it is a square.

16*16=256 square feet.

Now, we just need to find the area of the circular rug, and subtract it from 256 to find the area not covered by the rug that needs to be tiled. Since the sides of the rug touch each side of the floor, than the diameter will be the same as the side length of the square. Thus, the diameter is 16.

Now we can use the equation A=pir^2 or Area=pi*radius squared to find the area of the circle. The radius is halve of the diameter, so divide 16 by 2 to get the radius, or 8. Now all we have to do is square 8 and multiply it by 3.14.

8^2=64

Now multiply.

64*3.14=200.96.

The area of the circle is 200.96, so subtract 200.96 from 256.

256-200.96=55.04.

So they will need 3 boxes to cover the area left.

Hope this helps!

3 0

4 years ago