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djverab [1.8K]
3 years ago
12

How many solutions does this equation have? 5h - 5h = 0

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
7 0

Answer:

Infinitely many solutions.

Step-by-step explanation:

5h - 5h = 0

0 = 0

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I need help on 13-14
Allushta [10]

Answer: -1

Step-by-step explanation:

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3 years ago
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In order to estimate the average electric usage per month, a sample of 81 houses was selected and the electric usage was determi
lana [24]

Answer:

Confidence interval:  (1760,1956)

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 81

Sample mean =

\bar{x} = 1858 \text{ kWh}

Population standard deviation =

\sigma = 450 \text{ kilowatt-hours}

Confidence Level = 95%

Significance level = 5% = 0.05

Confidence interval:

\bar{x} \pm z_{critical}\displaystyle\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96

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6 0
3 years ago
Write an exponential model given the two points ​(10​,130​) and ​(11​,240​).
enot [183]

Answer:

  y = 130(24/13)^(x -10)

Step-by-step explanation:

The y-value changes by a factor of 240/130 = 24/13 for a unit change in the x-value. This means we can write the function as though it had an initial value of 130 and a growth factor of 24/13, translated 10 units to the right.

  y = 130(24/13)^(x -10)

_____

<em>Additional comment</em>

This can also be written in the form ...

  y = a·e^(kx)

where a=130·(24/13)^(-10) ≈ 0.28266, and k=ln(24/13) ≈ 0.61310

7 0
3 years ago
which pair of numbers is relatively prime A.)30 and 138 B.)34 and 137 C.)318 and 1443 D.)3000 and 30,616
Dahasolnce [82]
I think it is the letter B
5 0
3 years ago
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I would really appreciate it if y'all gave me an answer pls ​
Makovka662 [10]

Answer:

The answer of this question is 78°.

Step-by-step explanation:

Let angle X be denoted by y then angle Z=y (because isosceles angles of a traingle is equal)

Now,

y+y+24°=189°

2y+24°=180°

2y=180°-24°

y=156/2

y=78°

5 0
3 years ago
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