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Vanyuwa [196]
3 years ago
14

Line segment AB is drawn in the coordinate plane. Carlos graphed the set of points that are the same distance from both point A

and point B. What did Carlos graph?
Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Answer:

Carlos graphed the perpendicular bisector of AB.

Step-by-step explanation:

Given a line segment AB drawn in a coordinate plane. The set of points that are the same distance from points A and B divides the line segment AB into two equal parts.

This line is referred to as the perpendicular bisector of AB.

Therefore, Carlos graphed the perpendicular bisector of AB.

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There are 169 million registered voters in the us. determine an interval for the number (how many) of registered democrats in th
VashaNatasha [74]
Part A:

Given that in a sample of 400 registered voters, 204 were democrats, i.e. n = 400, <span>\hat{p}= \frac{204}{400} =0.51

</span>The 95% confidence interval for the proportion of registered democrats voters in the population is given by:

95\%\ C.I.=\hat{p}\pm z_{\alpha/2}\sqrt{\frac{\hat{p}(1-\hat{p})}{n}} \\  \\ =0.51\pm1.96\sqrt{\frac{0.51(1-0.51)}{400}}=0.51\pm1.96\sqrt{\frac{0.2499}{400}} \\  \\ =0.51\pm1.96(0.025)=0.51\pm0.049=(0.51-0.049,\ 0.51+0.049) \\  \\ =\bold{(0.461,\ 0.559)}



Part B:

Given that t<span>here are 169 million registered voters in the US, the interval for the number of registered democrats in the population is given by

[0.461(169,000,000), 0.559(169,000,000)] = (77,909,000, 94,471,000)
</span>
6 0
3 years ago
X - 3(2x - 7) = 76<br> Help!
Zigmanuir [339]

Answer:

To solve this equation your goal is to get x by itself

First we need to distribute the 3 through the (2x-7)

x-6x+21=76 (-3*2x=-6x, -7*-3=21)

Your next step is to combine like terms

-5x+21=76 (x-6x=-5x)

Next subtract 21 from both sides

-5x=55 (21-21=0, 76-21=55)

Last you need to divide both sides by -5

x=-11 (-5/-5=1, 55/-5=-11)

x=-11

Hope this helps ;)

3 0
3 years ago
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What is the discriminant of f(x) = -3x2 – 2x – 1?<br> A. -16<br> B. -8<br> c. 8<br> D. 16
sukhopar [10]
B. -8

F(x) = -3x2 - 2x - 1
0 = -3x x 2 - 2x - 1
X= -8
4 0
3 years ago
Determine the formula, in terms of x, that best describes the area of the plot.​
liq [111]

The area of a plot is the amount of space on the plot

The area of the plot is 2x^2 -x - 1

<h3>How to determine the area</h3>

The dimensions of the plot are given as:

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Width=x-1.

The area of the plot is the product of its dimension.

So, we have:

Area = (2x + 1)(x - 1)

Expand

Area = 2x^2 - 2x + x - 1

Evaluate the like terms

Area = 2x^2 -x - 1

Hence, the area of the plot is 2x^2 -x - 1

Read more about areas at:

brainly.com/question/24487155

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Wavelength varies inversely with frequency. Let k be the product of wavelength and frequency. Complete
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Answer:

A=670

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C is K divided by the Frenquency (Thz) 302400 / 540

4 0
3 years ago
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