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3 years ago

Pls help i have a d in algebra

Mathematics

1 answer:

Step2247 [10]3 years ago

3 0

The awnsey too this question is 1/12

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TAKE 50 POINTS!!!!!!please Someone HELP.JUST look the picture.

kodGreya [7K]

Step-by-step explanation:

$M=\left[\begin{array}{ccc}1&-1/f_2\\0&1\end{array}\right] \left[\begin{array}{ccc}1&0\\d&0\end{array}\right] \left[\begin{array}{ccc}1&-1/f_1\\0&1\end{array}\right]\\=\left[\begin{array}{ccc}1&-1/f_2\\0&1\end{array}\right]\left[\begin{array}{ccc}1&-1/f_1\\d&-d/f_1\end{array}\right]\\=\left[\begin{array}{ccc}1-d/f_2&-1/f_1+d/f_1f_2\\d&-d/f_1\end{array}\right]\\\\|M|=[-d/f_1+d^2/f_1f_2]-[-d/f_1+d^2/f_1f_2]=0\\\\-1/f=M_{12}=-1/f_1+d/f_1f_2\\1/f=M_{12}=+1/f_1-d/f_1f_2\\$

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3 years ago

which letter would be the most meaningful variable for the problem situation the weight of a box increase by 5

Natalija [7]

Answer:i

Step-by-step explanation:

4 0

3 years ago

Addition 1.4 +1.8 what is the answer

zepelin [54]

Simple. The answer is 3.2.

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3 years ago

Find the equation of the line that passes through (1,2) and is perpendicular to

uysha [10]

Answer:

Remember that the slope of perpendicular lines are negative reciprocals of each other.

Step-by-step explanation:

y = 1 - 2x the slope is -2 the value of the x term.

So the slope of the new line using point (- 1, 2) is 1/2.

Now use y = mx + b where y = -1, x = 2, and m = 1/2 .

y = mx + b

-1 = 1/2(2) + b solve for "b", the y-intersect

-1 = 1 + b

-2 = b

The line that is perpendicular to y = 1 - 2x is y = 1/2x - 2

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3 years ago

the patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.9 days and a standard de

NNADVOKAT [17]

The 85th percentile is the cutoff time $t$ such that

$\mathbb P(X$

In other words, the 85th percentile refers to the time needed to belong to the top 15% of the distribution; more generally, the $n$ percentile is the top $(100-n)\%$ of the distribution.

Anyway, to find this value of $t$ , transform $X$ to a random variable $Z$ with the standard normal distribution using

$Z=\dfrac{X-\mu}\sigma$

where $\mu$ is the mean of $X$ and $\sigma$ is the standard deviation of $X$ .

$\mathbb P(X$

Here $t^*$ is used to denote the z-score corresponding to the cutoff time $t$ . Referring to a z-score table, you find that this occurs for $t^*\approx1.036$ . So,

$\dfrac{t-5.9}{2.1}=t^*\implies t=5.9+2.1t^*\approx8.076$

7 0

4 years ago