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3 years ago

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An experienced computer technician can set up a network in 12 hours. It would take an intern 20 hours to set up the same network

. What is the rate of the experienced technician?
A.) 1/12
B.) x/12

1 answer:

Lena [83]3 years ago

7 0

Answer:

in my own opinion the answer is is 1/12

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Is this a function pls help

Alla [95]

Answer:

yup it is :)

Step-by-step explanation:

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3 years ago

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where p0 is the atmospheric pressure at sea level and k is a constant. If the atmospheric pressure is 14.7 lb/in.2 at sea level

balu736 [363]

Answer:

The value of pressure at an altitude of 10000 ft = 10 $\frac{lb}{in^{2} }$

Step-by-step explanation:

Given data

Atmospheric pressure $P_{0}$ = 14.7 $\frac{lb}{in^{2} }$

Pressure at 4000 ft = 12.6 $\frac{lb}{in^{2} }$

If temperature is constant then the atmospheric pressure is varies with the altitude according to law

P (h) = $P_{0}$ $e^{- kh}$ ------ (1)

where k= constant & h = height

12.6 = 14.7 $e^{- 4000k}$

0.857 = $e^{- 4000k}$

㏑ 0.857 = - 4000 k

-0.154 = - 4000 k

k = 3.85 × $10^{-5}$

Thus the atmospheric pressure at an altitude of 10,000 ft is

$P_{10000} =$ 14.7 × $e^{- kh}$ ----- (2)

Product of k & h is

k h = 3.85 × $10^{-5}$ × 10000

k h = 0.385

Put his value of k h = 0.385 in equation (2) we get

$P_{10000} =$ 14.7 × $e^{-0.385 }$

$P_{10000} =$ 10 $\frac{lb}{in^{2} }$

This is the value of pressure at an altitude of 10000 ft.

7 0

3 years ago

Real numbers worksheet<br> Help please and ty

Rina8888 [55]

Answer:

1. 30 → real, rational, integer, whole number, natural number

2. •11 → real, irrational

3. 5 ⁴/7 → real, rational, integer

4. √21 → real, irrational

5. 0 → real, rational, integer, whole, natural

6. -√9 → real, rational, integer, whole

7. 6/3 → real, rational, integer, whole, natural

8. π → real, irrational

9. 5⅔ → real, rational, integer

Step-by-step explanation:

$.$

7 0

3 years ago

Simplify: –4(x – 5) + 3(a – 7)

Serga [27]

-4 (x - 5) + 3 (a - 7)

First, expand your problem. / Your problem should look like: -4x + 20 + 3a - 21
Second, simplify. / Your problem should look like: -4x + 3a - 1

Answer: -4x + 3a - 1 (C)

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4 years ago

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Tell whether the given value is a solution of the inequality

kipiarov [429]

Answer:

Yes it is, because...

Step-by-step explanation:

This is an inequality, so you can treat it as an algebraic expression.

The first step is to multiple both sides by 2, to get rid of the 2 on the left side.
Your equation will now look like this:
y >= 2y - 22

The next step is to get all the y variables to one side, now that its a lot more simplified. Subtract 2y from both sides to get:
-y >= -22

Finally, cancel out the negative on both sides of the equation to get the y as a positive y, all by itself. This will get you:
y <= 22

REMINDER: when you divide by a negative number, such as in this case dividing by -1 on both sides, the inequality sign will flip!

y = 18 works because it is less than 22. (:

8 0

2 years ago

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