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Yakvenalex [24]
3 years ago
9

P{x:x is a natural number x (9​

Mathematics
1 answer:
EastWind [94]3 years ago
8 0

Answer:

you need a photo my dude

Step-by-step explanation:

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How do I solve this using long division?
dolphi86 [110]

Answer:

{2x}^{2}  + 3x + 5

Step-by-step explanation:

<h2>hope this helps</h2>

.........

3 0
2 years ago
A factory process requires 3 steps to finish a product. The steps each have a mean completion time of μ=10 seconds and a standar
Westkost [7]

Answer:

The mean of T is 10 seconds

Step-by-step explanation:

The given parameters are;

The mean completion time of each step, μ = 10 seconds

The standard deviation, σ = 5 seconds

Each step is independent from the other steps

The variable that represents the total completion time for the three steps = T

We have the mean of T, \overline T, given by the combined mean as follows;

\overline T = \dfrac{n_1 \cdot \overline x_1 + n_2 \cdot \overline x_2 + n_3 \cdot \overline x_3 }{n_1 + n_2 + n_3 }

Where;

The \ mean \ completion \ time \ for \ each \ step \ is \   \overline x_1 = \overline x_2 = \overline x_3 = 10 \ seconds

n₁ = n₂ = n₃ = 1, each step is taken only once, we have;

\overline T = \dfrac{1 \times 10 + 1 \times 10 + 1 \times 10 }{1 + 1 + 1 } = \dfrac{30}{3}  = 10 \ seconds

Therefore, the mean of T = 10 seconds

5 0
3 years ago
Read 2 more answers
I need help with number 43 and 44 please.
Vaselesa [24]

Answer 44 is the number 36

4 0
3 years ago
An environmental agency worries that many cars may be violating clean air emissions standards. The agency hopes to check a sampl
goldenfox [79]

Answer:

197

Step-by-step explanation:

Sample proportion is; p^ = 12/50 = 0.24

Margin of error of 5% is given by the formula;

ME = (z_0.05) √[p^(1 - p^)/n]

Let's make n(number of sample) the subject.

n = ((z_0.05)/ME)²((p^)(1 - p^))

From tables, the z-score of 0.05 is 1.645

Thus;

n = ((1.645)/0.05)²(0.24(1 - 0.24))

n ≈ 197

3 0
3 years ago
Find the area of the trapezoid
natima [27]

Answer:

188 feet squared

Step-by-step explanation:

The formula for a trapezoid is A = [(a+b)/2]h

1. Find base a and b: 28ft and 19ft

2. Find the height: 8ft

3. Plugin: A = [(28+19)/2]8

4. Solve:

A = (47/2)8

A = 23.5 x 8

A = 188 feet squared

6 0
3 years ago
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