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Lubov Fominskaja [6]
3 years ago
14

Select the antonym for the given word undaunted?

Mathematics
2 answers:
Mkey [24]3 years ago
7 0
The Answer Is D) Afraid







IrinaVladis [17]3 years ago
5 0

Answer:

D) Afraid

Step-by-step explanation:

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Which amount is equivaent to 8 pounds?
andreyandreev [35.5K]
It is equal to 3.6 kilogram 
or 128 oz
8 0
3 years ago
Determine whether the two lines are parallel, perpendicular or neither x-3y=6 y=3x+4
Anna [14]

Answer:

neither

Here's how you know:

first, i'll simplify it so both are in slope-intercept form (y = mx + b).

x-3y=6

-3y = 6 - x

y = (1/3)x - 2

y=3x+4   is already in slope-intercept form, yay :)

these lines are neither parallel nor perpendicular.

The equations of parallel lines have THE SAME SLOPES (y = <em>m</em>x + b --> m would be exactly the same).

In contrast, perpendicular lines have NEGATIVE RECIPROCAL SLOPES (y = <em>m</em>x + b --> m would be <em>-1/m</em>).

<u><em>--> since the slopes of these match neither of these definitions, we know it must be neither.</em></u>

6 0
3 years ago
In a randomly selected sample of 400 registered voters in a community, 160 individuals say that they plan to vote for Candidate
Studentka2010 [4]

Answer:

a) the sample proportion planning to vote for Candidate Y is \frac{160}{400} =0.4

b) the standard error of the sample proportion is ≈ 0.024

c) 95% confidence interval for the proportion of the registered voter population who plan to vote for Candidate Y is (0.353,0.447)

d) 98% confidence interval for the proportion of the registered voter population who plan to vote for Candidate Y is  (0.344,0.456)

Step-by-step explanation:

a) The sample proportion planning to vote for Candidate Y is:

\frac{160}{400} =0.4

b) The standard error of the sample proportion can be found using

SE=\frac{\sqrt{p*(1-p)}}{\sqrt{N} } where

  • p is the sample proportion planning to vote for Candidate Y (0.4)
  • N is the sample size (400)

Then SE=\frac{\sqrt{0.4*0.6}}{\sqrt{400} } ≈ 0.024

c) 95% confidence interval for the proportion of the registered voter population who plan to vote for Candidate Y can be calculated as  p±z×SE where

  • p is the sample proportion planning to vote for Candidate Y  (0.4)
  • SE is the standard error (0.024)
  • z is the statistic for 95% confidence level (1.96)

Then

0.4±(1.96×0.024)=0.4±0.047 that is (0.353,0.447)

d) 98% confidence interval is similarly

0.4±(2.33×0.024)=0.4±0.056 that is (0.344,0.456) where

2.33 is the statistic for 98% confidence level.

4 0
3 years ago
Solving quadratics equations by square root method
Zielflug [23.3K]
Can you elaborate? are you
looking for an overall explanation or asking for a specific questions
7 0
2 years ago
Read 2 more answers
Use the IVT to prove that one solution to <img src="https://tex.z-dn.net/?f=x%5E%7B3%7D%20%2Bx-5%3D0" id="TexFormula1" title="x^
Dafna11 [192]

Let <em>f(x)</em> = <em>x</em>³ + <em>x</em> - 5. <em>f(x)</em> is a polynomial so it's continuous everywhere on its domain (all real numbers). Since

<em>f</em> (1) = 1³ + 1 - 5 = -3 < 0

and

<em>f</em> (2) = 2³ + 2 - 5 = 5 > 0

it follows by the intermediate value theorem that there at least one number <em>x</em> = <em>c</em> between 1 and 2 for which <em>f(c)</em> = 0.

7 0
3 years ago
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