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Pie
3 years ago
13

(x^4+15x^3-77x^2+13x-36)+(x-4)

Mathematics
2 answers:
Olenka [21]3 years ago
7 0
Answer:<span> =<span><span><span><span><span>x4</span>+<span>15<span>x3</span></span></span>−<span>77<span>x2</span></span></span>+<span>14x</span></span>−<span>40</span></span></span>
vaieri [72.5K]3 years ago
5 0
If you do distributive property then teh answer shoould be x5 + 11x4 -92x3 +90x2 -49x + 144
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Helpppp with this :&gt;
Paul [167]

Answer:

x=9

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The mean survivial time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years. Based on a parti
frutty [35]

Answer:

The time the patient expected to survive after diagnosis is 29 years.

Step-by-step explanation:

It is provided that the mean survival time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years.

That is,

\mu=15\\\sigma=5

An individual's predicted survival time is <em>a</em> = 2.8 standard deviations beyond the mean.

Compute the time the patient expected to survive after diagnosis as follows:

X=\mu+a\sigma

    =15+(2.8\times 5)\\\\=15+14\\\\=29

Thus, the time the patient expected to survive after diagnosis is 29 years.

5 0
3 years ago
The time it takes a student to walk from the dorm to the chemistry lab follows roughly a Normaldistribution with a mean of 20 mi
creativ13 [48]

Answer:

95.15%

Step-by-step explanation:

We have that the mean (m) is equal to 20, the standard deviation (sd) 3

They ask us for P (x <25)

For this, the first thing is to calculate z, which is given by the following equation:

z = (x - m) / sd

We have all these values, replacing we have:

z = (25 - 20) / (3)

z = 1.66

With the normal distribution table (attached), we have that at that value, the probability is:

P (z <1.66) = 0.9515

Which means that the probability that it arrives before 25 minutes is 95.15%

6 0
3 years ago
3. What is the slope of the line through the points (2, 5) and (6, 13)?
White raven [17]

Answer:

m = 2

Step-by-step explanation:

m=\frac{rise}{run}=\frac{13-5}{6-2}=\frac{8}{4}=\boxed{2}

Hope this helps.

8 0
3 years ago
X^3-13x^2+40x=0 quadratic
lutik1710 [3]

Answer:

x(x-5)(x-8)

or

x=5

x=8

Step-by-step explanation:

  1. x(x^2-13x+40)
  2. x(x-5) (x-8)
6 0
3 years ago
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