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Anton [14]
3 years ago
7

Vincent flipped three coins during a probability experiment. The outcomes of the first 40 trials are shown in the table.

Mathematics
2 answers:
Ilya [14]3 years ago
6 0

Answer:

48

Step-by-step explanation:

There are 40 trials, 16 out of those 40 trials resulted in two heads and one tail, which is what we are trying to find out of 120..

To do that, find 16/40 which gives you 0.4%

Next multiply 0.4% by 120 and you will get 48.

Hope this helped!

mr_godi [17]3 years ago
5 0

Answer:

Step-by-step explanation:

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Sweatshirts were on sale at the local gift shop. The cost to produce the shirts was C=0.4n^2- 32n + 650 where C is cost in dolla
Anna71 [15]
The cost to produce n shirts is given as:

C=0.4 n^{2} -32n+650

The cost function is a quadratic function with a positive leading coefficient, so the minimum value will be at the vertex of the function. 

The vertex of a quadratic function can be calculated as:

( \frac{-b}{2a},f( \frac{-b}{2a}))

a = coefficient of squared term = 0.4
b = coefficient of n term = -32

Using these values, we get:

- \frac{b}{2a}= - \frac{-32}{0.8}= 40

This means, the cost will be minimized if 40 t shirts are produced. 

The minimum cost can be found by calculating C at n=40

So, the minimum cost will be:

C(40) = 0.4(40)² - 32(40) + 650

C(40) = 10

Therefore, the minimum cost to produce a t shirt will be $10
3 0
3 years ago
Need help with this geometry problem.
snow_tiger [21]

Answer:

D

Step-by-step explanation:

The correct answer choice is D.  Note how BC and MN appear to have nearly the same lengths, whereas none of the other statements are true.  Note, also, that this diagram is not to scale; you could make the problem easier by redrawing MNOP so that it has the same orientation as does ABCD and the same corresponding side lengths.

8 0
3 years ago
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3 years ago
Solve by elimination:<br> 4x + 4y = 4
ra1l [238]

Answer:

x=−y+1

Step-by-step explanation:

Let's solve for x.

4x+4y=4

Step 1: Add -4y to both sides.

4x+4y+−4y=4+−4y

4x=−4y+4

Step 2: Divide both sides by 4.

<u>4x      </u>  =    <u>−4y+4</u>

4          =        4

x=−y+1

Hope this helps ~

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Find the area of the shaded region.
Ghella [55]
This is a rhombus and in any rhombus, the diagonals intersects in the middle and they are perpendicular:
So all 4 triangles are right triangles and the sides are the hypotenuses.
1st) Calculate the sides: hypotenuse² = 3² + 4² = 25, and hypotenuse = 5

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And the area of the 4 right triangles = 4 x 6 = 24 init²

4 0
3 years ago
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