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2 years ago

Answer this for points and brainilest (work must be included)

Mathematics

1 answer:

marin [14]2 years ago

4 0

Answer:

Step-by-step explanation:

4b + 5 = 1 + 5b

4 = 1b

4 = b

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Y-3=2(x+1) complete the missing value in the solution to the equation

Nuetrik [128]

Answer:(0,5)

Step-by-step explanation:

Y-3=2(x+1)

Rewrite it

2(x+1)=y-3

Sub. 0 for xto find y

2=y-3

Y-3=2

Y=2+3

Y=5

5-3=2(x+1)

2=2x+2

2x+2=2

2x=-2+2

2x= 0

X=0

To check

5-3=2(0+1)

2=2(1)

2= 2

It checks

6 0

3 years ago

Read 2 more answers

What is the area of a triangle with the coordinates (-4,14) (10,0) (-14,-10)

allsm [11]

You can use Heron Formula in the calculator to output the result, but i still show you the steps on paper thro

lengths of the 3 lines: \sqrt{392} , \sqrt{676} , \sqrt{676}

s= (\sqrt{392} + \sqrt{676} + \sqrt{676})/2=35.89949494

area= \sqrt{s(s- \sqrt{392} )(s- \sqrt{676})^2 } =238

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B2%7D%7Bx%20-%201%7D%20%20%2B%201" id="TexFormula1" title="y = \frac{2}

Dmitriy789 [7]

Answer:

x = $\frac{y+1}{y-1}$

Step-by-step explanation:

4 0

3 years ago

A survey asked whether respondents favored or opposed the death penalty for people convicted of murder. Software shows the resul

pav-90 [236]

Answer:

95% confidence interval for the proportion of the adults who were opposed to the death penalty is (0.668, 0.704).

Step-by-step explanation:

We are given that a survey asked whether respondents favored or opposed the death penalty for people convicted of murder. Software shows the results below, where X refers to the number of the respondents who were in favor.

X = 1,790

N = 2,610

$\hat p$ = Sample proportion = X/N = 0.6858

Firstly, the pivotal quantity for 95% confidence interval for the population proportion is given by;

P.Q. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion = 0.6858

n = sample of respondents = 2,610

p = population proportion

<em>Here for constructing 95% confidence interval we have used One-sample z proportion statistics.</em>

So, 95% confidence interval for the population proportion, p is ;

P(-1.96 < N(0,1) < 1.96) = 0.95 {As the critical value of z at

2.5% level of significance are -1.96 & 1.96}

P(-1.96 < $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ < 1.96) = 0.95

P( $-1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ < ${\hat p-p}$ < $1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ) = 0.95

P( $\hat p-1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} }$ < p < $\hat p+1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ) = 0.95

<u>95% confidence interval for p</u> = [ $\hat p-1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} }$ , $\hat p+1.96 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} }$ ]

= [ $0.6858-1.96 \times {\sqrt{\frac{0.6858(1-0.6858)}{2610} }$ , $0.6858+1.96 \times {\sqrt{\frac{0.6858(1-0.6858)}{2610} }$ ]

= [0.668 , 0.704]

Therefore, 95% confidence interval for the population proportion of the adults is (0.668, 0.704).

3 0

3 years ago

At a road work site, 20 cones are placed for every 50 feet if there are 35 feet how many cones are placed

Paul [167]

700 easy math 20 times 35 equals 700

3 0

2 years ago