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Dmitriy789 [7]
3 years ago
15

Draw triangle WAK with a K= 12 KW= 15 and WA= 10. List the angles in order from largest to smallest

Mathematics
1 answer:
butalik [34]3 years ago
3 0

Answer:

probably KW WA And K

Step-by-step explanation:

btw nice L profile picture love deathnote

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sineoko [7]

Answer:

it would be on the 6th tick

6 0
3 years ago
Read 2 more answers
Which equation can you use to find the value of x?
serg [7]

Answer:

3×=78+×-2

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7 0
3 years ago
A bicycle training wheel has a radius of 3 inches. The bicycle wheel has a radius of 10 inches.
-Dominant- [34]

Answer:

285.74

314 - 28.26 = 285.74

8 0
3 years ago
The discriminant of a quadratic equation is equal to -8, which statement describes the roots?
Maslowich

Answer:

  (a)  There are two complex roots

Step-by-step explanation:

The discriminant of a quadratic function describes the nature of its roots:

  • <u>negative</u>: two complex roots
  • <u>zero</u>: one real root (multiplicity 2)
  • <u>positive</u>: two distinct real roots.

__

Your discriminant of -8 is <em>negative</em>, so it indicates ...

  There are two complex roots

_____

<em>Additional comment</em>

We generally study polynomials with <em>real coefficients</em>. These will never have an odd number of complex roots. Their complex roots always come in conjugate pairs.

6 0
2 years ago
In one area, monthly incomes of technology-related workers have a standard deviation of $650. It is believed that the standard d
Virty [35]

Answer:

There is sufficient statistical evidence to prove that the standard deviation of the technology-related workers and the standard deviation of the non-technology workers are equal.

Step-by-step explanation:

Here we have our null hypothesis as H₀: σ² = s²

Our alternative hypothesis is then Hₐ: σ² ≠ s²

We therefore have a two tailed test

To test the hypothesis of difference in standard deviation which is the Chi squared test given as follows

\chi ^{2} = \dfrac{\left (n-1  \right )s^{2}}{\sigma ^{2}}

Where:

n = Size of sample

s² = Variance of sample = 950²

σ² = Variance of population = 650²

Degrees of freedom = n - 1 = 71 - 1 = 70

α = Significance level = 0.1

Therefore, we use 1 - 0.1 = 0.9

From the Chi-square table, we have the critical value as

1 - α/2 = 51.739,  

α/2 = 90.531

Plugging the values in the above Chi squared test equation, we have;

\chi ^{2} = \dfrac{\left (23-1  \right )950^{2}}{650 ^{2}} = 49.994

Therefore, since the test value within the critical region, we do not reject the null hypothesis, hence there is sufficient statistical evidence to prove that the standard deviation of the technology-related workers and the standard deviation of the non-technology workers are equal.

6 0
3 years ago
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