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Ipatiy
1 month ago
12

What is the sum of StartRoot negative 2 EndRoot and StartRoot negative 18 EndRoot?

Mathematics
1 answer:
tester [12.3K]1 month ago
3 0

Answer:

4 \sqrt{2} i

Step-by-step explanation:

We seek the total of

\sqrt{ - 2}  +  \sqrt{ - 18}

This can be reformulated as

\sqrt{ 2 \times  - 1}  +  \sqrt{ 18 \times  - 1}

Which simplifies to;

\sqrt{2}  \times  \sqrt{ - 1}  +  \sqrt{18}  \times  \sqrt{ - 1}

Bear in mind that;

i =  \sqrt{ - 1}

This suggests that;

\sqrt{2} i + 3 \sqrt{2} i

Combine similar elements:

4 \sqrt{2} i

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3x23=69 is the equation that has the sum 69
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1 month ago
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How many possible values for y are there where y = cos^-1 0?
Zina [12379]

The potential values for y areinfinite

Further clarification

Trigonometry is a branch of math focused on the connections between the sides and angles of triangles.

Considering special angles of trigonometric functions, for instance

\displaystyle sin~0=0\\\\cos~30=\frac{1}{2}\sqrt{3}\\\\tan~45=1\\\\sec~45=\sqrt{2}\\\\etc.

In the equation y = cos⁻¹ 0, the value of y can be derived as follows:

y = cos⁻¹0

y = arc cos 0

cos y = 0

Thus, the resulting value of y:

\displaystyle \frac{\pi }{2},\frac{3}{2}\pi,\frac{5}{2}\pi, etc

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3 0
25 days ago
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Assume that a study of 500 randomly selected airplane routes showed that 482 arrived on time. Select the correct interpretation
babunello [11817]

Answer: C. Significant at 0.036

Step-by-step explanation:

Given:

Total samples selected Ns= 500

Airplanes that arrived on time Na = 482.

Airplanes that arrived late Nl = 500 - 482 = 18

Calculating the probability of an airplane arriving late:

P(L) = Nl/Ns

P(L) = 18/500

P(L) = 0.036

An event is deemed significant if its probability is equal to or less than 0.05.

As P(L) < 0.05

P(L) = Significant at 0.036

4 0
1 month ago
A gazebo is being built near a nature trail. An equation of the line representing the nature trail is y = 13x−4. Each unit in th
PIT_PIT [12445]

Respuesta:

126 pies

Explicación paso a paso:

Dado que:

Ecuación de la línea que representa el sendero de naturaleza:

y = 13x - 4

Distancia del gazebo respecto al sendero de naturaleza:

Cada unidad en el plano de coordenadas = 10 pies

Por lo tanto,

y = 13(10) - 4

y = 130 - 4

y = 126 pies

6 0
28 days ago
Jerome is a co-owner of a small company and received 1\3 of the companies?profits this year. What were the company?s overall pro
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Jerome's share of the total profit amounts to one-third. To determine the overall profit of the company, multiply his profit by 3.
If he earned $150,000, the calculation would be:
150,000 × 3 = $450,000

So, the total profit is $450,000.

The dot simply represents multiplication.
4 0
1 month ago
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