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mrs_skeptik [129]
2 years ago
8

Kinu has 7 memory sticks that contain data from his computer. Some of the me

Mathematics
1 answer:
ra1l [238]2 years ago
6 0

Solving the system of equations, it is found that x = 3, that is, there are 3 128 MB memory sticks.

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

We want to solve for x, thus, in the first equation, we write y as a function of x, that is:

y = 7 - x

Replacing in the second equation:

128x + 512(7 - x) = 2432

128x + 3584 - 512x = 2432

384x = 1152

x = \frac{1152}{384}

x = 3

x = 3, that is, there are 3 128 MB memory sticks.

A similar problem is given at brainly.com/question/24823220

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Elodia [21]
-2/15-(-9/15)=-2/15+9/15=9/15-2/15=7/15
the answer is C

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Express 0.002304 in standard form , correct to one decimal place​
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Answer:

= 2.3 \times  {10}^{ - 3}

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Chad will drive 672 more miles . He continues to drives at the same rate . How many hours will it take Chad to drive the 672 mil
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12 hours, you can use proportions, miles/hours. 56/1=672/x. x=12.
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3 years ago
Which of the following are in correct order from greatest to least?
Marat540 [252]

Given:

Four series of angles are given.

To Find:

Identify the series with the correct order from greatest to least.

Solution:

the correct order from greatest to least is what is shown in the fourth option, i.e.,

330

Calculation:

Now, we use the fact that

\pi =180

to calculate the values of

\frac{\pi}{2}, \frac{2\pi}{3}, \frac{7\pi}{6}, \frac{5\pi}{3}

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Looking at the above values, we see that the correct order from greatest to least is what is shown in the fourth option, i.e.,

330

5 0
3 years ago
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6. Suppose that a fair coin is tossed 2 times, and the result of each toss (H or T) is recorded.
nekit [7.7K]

Answer:

a) S= {HH, HT, TH, TT}

b) P(X=0) = (2C0) (0.5)^0 (1-0.5)^{2-0}= 0.25

P(X=1) = (2C1) (0.5)^1 (1-0.5)^{2-1}= 0.5

P(X=2) = (2C2) (0.5)^2 (1-0.5)^{2-2}= 0.25

And we have the following table:

X     |     0   |     1   |      2

P(X) |  0.25 |  0.5 |  0.25

Step-by-step explanation:

Let's define first some notation

H= represent a head for the coin tossed

T= represent tails for the coin tossed

We are going to toss a coin 2 times so then the size of the sample size is 2^2 = 4

a. What is the sample space for this chance experiment?

The sampling space on this case is given by:

S= {HH, HT, TH, TT}

b. For this chance experiment, give the probability distribution for the random variable of the total number of heads observed.

The possible values for the number of heads are X=0,1,2. If we assume a fair coin then the probability of obtain heads is the same probability of obtain tails and we can find the distribution like this:

P(X=0) = (2C0) (0.5)^0 (1-0.5)^{2-0}= 0.25

P(X=1) = (2C1) (0.5)^1 (1-0.5)^{2-1}= 0.5

P(X=2) = (2C2) (0.5)^2 (1-0.5)^{2-2}= 0.25

And we have the following table:

X     |     0   |     1   |      2

P(X) |  0.25 |  0.5 |  0.25

5 0
3 years ago
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