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CaHeK987 [17]
2 years ago
15

Solve for x A 130 B 120 C 23 D 70

Mathematics
1 answer:
34kurt2 years ago
7 0

Answer:

B)120º

Step-by-step explanation:

70+50=x

120=x

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maw [93]

The equation that is represented by the graph below is y = e^x - 4.

<h3>How to illustrate the graph?</h3>

From the graph, it can be seen that the only exponential function n to hat intercept the function at equal to 3 is y = e^x - 4.

Let's equate y to 0.

y = e^x - 4.

e^x - 4 = 0

e^x = 4

In(e^x) = In(4)

x = 1.386

The x intercept is located at (1.386, 0).

In conclusion, the correct option is D.

Learn more about graph on:

brainly.com/question/12886416

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3 0
2 years ago
Simplify.[2 × (10 + 5)] - 5
N76 [4]
2(10+5)−5 =(2)(15)−5 =30−5 =25 C is the answer.
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3 years ago
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What is the solution to the system of equations?<br><br> y = x – 10<br><br> 2x + y = 4
Bumek [7]
2x+(x-10)=4
3x-10=4
3x=14
x=4.6 repeating
6 0
3 years ago
How do u write 19/25 fraction or mixed number as a decimal
Romashka [77]
Divide the bottom into the top for a decimal
8 0
3 years ago
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A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only
Nadusha1986 [10]

Answer:

The sample size required is, <em>n</em> = 502.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population proportion is:

CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p\cdot (1-\hat p)}{n}}

The margin of error is:

MOE=z_{\alpha/2}\sqrt{\frac{\hat p\ \cdot (1-\hat p)}{n}}

Assume that 50% of the people would support this political candidate.

The margin of error is, MOE = 0.05.

The critical value of <em>z</em> for 97.5% confidence level is:

<em>z</em> = 2.24

Compute the sample size as follows:

MOE=z_{\alpha/2}\sqrt{\frac{\hat p\ \cdot (1-\hat p)}{n}}

       n=[\frac{z_{\alpha/2}\times \sqrt{\hat p(1-\hat p)}}{MOE}]^{2}

           =[\frac{2.24\times \sqrt{0.50(1-0.50)}}{0.05}]^{2}\\\\=501.76\\\\\approx 502

Thus, the sample size required is, <em>n</em> = 502.

4 0
3 years ago
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