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otez555 [7]
3 years ago
15

Tina brought four more than one-half of the number of t-shirts as Maria. If Tina brought

Mathematics
2 answers:
dybincka [34]3 years ago
4 0
Maria brought 14 shirts
ryzh [129]3 years ago
4 0
Answer:
Maria brought 9 shirts

Answer explained:
11 shirts / 2 = 5.5 shirts + 4 shirts = 9.5 shirts
You can’t have 9.5 shirts so the only option is 9


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A market research team compiled the following discrete probability distribution, where X represents the number of automobiles ow
rodikova [14]

Answer:

The standard deviation of X is 0.7

Step-by-step explanation:

We are given the following distribution:

    x:     0        1         2       3    

P(x):    0.3     0.5     0.2     0.4

We have to find the standard deviation of X.

Formula:

E(x) = \displaystyle\sum x_iP(x_i)\\\\E(x) =0(0.3) + 1(0.5) + 2(0.2) + 3(0.4)\\\\E(x) = 2.1\\\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\\\E(x^2) =0(0.3) + 1(0.5) + 4(0.2) + 9(0.4)\\\\E(x^2) = 4.9\\\\Var(x) = E(x^2) - (E(x))^2 = 4.9-(2.1)^2 = 0.49\\\\\sigma(x) = \sqrt{Var(x)} =\sqrt{0.49} = 0.7

Thus, the standard deviation of X is 0.7

6 0
3 years ago
5 and three tenths - 2 and five tenths
torisob [31]
5 and three tenths translates to 5.3 and 2 and five tenths translates to 2.5...   5.3 - 2.5 = 2.8

2.8 translates to 2 and 8 tenths which can be simplified to...

2 and 4 fifths
8 0
3 years ago
I need help on my homework pls
son4ous [18]

Answer:

y=x2

I got it solved! tell me if it helped

4 0
2 years ago
Read 2 more answers
All of the following are equal except<br> the opposite of 5<br> 0 -1-51<br> O-151<br> O 1-51
exis [7]

Answer:

i don't get the way you wrote it

Step-by-step explanation:

5 0
3 years ago
What are the midline, amplitude, and period of the graphed sine function?
Sunny_sXe [5.5K]

The midline, amplitude and period respectively of the given sine graph are; x = 1; 2; π

<h3>Midline, Amplitude and Period</h3>

The midline of this trigonometric graph is defined as the horizontal line that divides the maximum and minimum point distance into two equal parts. In this case, the midline is x = 1

The amplitude of a graphed function is usually the peak of the wave of that graph. In this case, we see that the peak of the graph is at y = 4. Thus, Amplitude = 4

Period is the difference between two consecutive maximum or minimum points. In this graph, the period is π

Read more about Midline, Amplitude and Period at; brainly.com/question/21124447

7 0
1 year ago
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