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s2008m [1.1K]
3 years ago
5

X > 2 and x < 7I don't understand

Mathematics
1 answer:
valentinak56 [21]3 years ago
3 0
It means that x value is between 2 to 7 ( more than 2, but less than 7)
In notation, 2 < x < 7  or (2,7).
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Find the volume of the prism. 4 in. 8 in. 8 in. ​
Temka [501]

Answer:

256

Step-by-step explanation:

8×8=64

64×4=256

64

4

256

3 0
2 years ago
Read 2 more answers
Resistors are labeled 100 Ω. In fact, the actual resistances are uniformly distributed on the interval (95, 103). Find the mean
Zinaida [17]

Answer:

E[R] = 99 Ω

\sigma_R = 2.3094 Ω

P(98<R<102) = 0.5696

Step-by-step explanation:

The mean resistance is the average of edge values of interval.

Hence,

The mean resistance, E[R] = \frac{a+b}{2}  = \frac{95+103}{2} = \frac{198}{2} = 99 Ω

To find the standard deviation of resistance, we need to find variance first.

V(R) = \frac{(b-a)^2}{12} =\frac{(103-95)^2}{12} = 5.333

Hence,

The standard deviation of resistance, \sigma_R = \sqrt{V(R)} = \sqrt5.333 = 2.3094 Ω

To calculate the probability that resistance is between 98 Ω and 102 Ω, we need to find Normal Distributions.

z_1 = \frac{102-99}{2.3094} = 1.299

z_2 = \frac{98-99}{2.3094} = -0.433

From the Z-table, P(98<R<102) = 0.9032 - 0.3336 = 0.5696

5 0
3 years ago
Sketch the image of quadrilateral PQRS under the following dilations:
kramer

Answer:

dam this been up for a long time

Step-by-step explanation:

its just too hard sorry man

7 0
2 years ago
What is the answer to 72=3/4c
Darina [25.2K]

First, we take the 3/4 and multiply 72 by it's reciprocal, 4/3. Your answer would come to c= 96.

Hope this helped :)


8 0
3 years ago
Question 3 (3 points) <br> Solve 8 = 2x + 4. (3 points)
mrs_skeptik [129]

X=2

-4 on both sides

4=2x

divide by 2 on both sides

X=2

5 0
3 years ago
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