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dangina [55]
3 years ago
7

I need help!!! asapWhat is the ratio as you change from B to A?

Mathematics
1 answer:
lutik1710 [3]3 years ago
8 0
Now, this is simple. So, if you see 2 go to 6, how would you get 2 to 6? You would multiply by 3. This means that you would do the same for all sides. When you do this, that means that y = 6/3, x = 3/3, and x = 3/3

So, the ratio would be 3
You might be interested in
What is a decimal for 8/24
lesya [120]
The answer is .33333333 
Because 8 divided by 24= .33333333 

I hope this helps:)
6 0
3 years ago
Read 2 more answers
The mayor of a town has proposed a plan for the annexation of a new bridge. A political study took a sample of 1000 voters in th
garri49 [273]

Answer:

z=\frac{0.42 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1000}}}=1.945  

p_v =P(Z>1.945)=0.0259  

If we compare the p value obtained with the significance level given \alpha=0.02 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 2% of significance the proportion of residents who favored annexation is not significantly higher than 0.39.  

Step-by-step explanation:

1) Data given and notation  

n=1000 represent the random sample taken

\hat p=0.42 estimated proportion of residents who favored annexation

p_o=0.39 is the value that we want to test

\alpha=0.02 represent the significance level

Confidence=98% or 0.98

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the proportion is higher than 0.39:  

Null hypothesis:p\leq 0.39  

Alternative hypothesis:p > 0.39  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

3) Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.42 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1000}}}=1.945  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.02. The next step would be calculate the p value for this test.  

Since is a right tailed test the p value would be:  

p_v =P(Z>1.945)=0.0259  

If we compare the p value obtained with the significance level given \alpha=0.02 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 2% of significance the proportion of residents who favored annexation is not significantly higher than 0.39.  

4 0
3 years ago
You are choosing between two health clubs. Club A offers membership for a fee of $24plus a monthly fee of $11. Club B offers mem
Kay [80]
24 + 11 = 35 + 11 = 46 + 11 = 57 + 11 = 68 +11 = 79 + 11 = 90 + 11 = 101
17 + 12 = 29 + 12 = 41 + 12 = 53 + 12 = 65 + 12 = 77 + 12 = 89 + 12 = 101

$101, 7 months
3 0
3 years ago
I NEED HELP! If f(x)= 5x^2-3 and g(x)=x^2-4x-8, find (f-g)(x).
yaroslaw [1]

Answer:

(f - g)(x) = 4x² + 4x + 5

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 5x² - 3

g(x) = x² - 4x - 8

(f - g)(x) is f(x) - g(x)

<u>Step 2: Find (f - g)(x)</u>

  1. Substitute:                    (f - g)(x) = 5x² - 3 - (x² - 4x - 8)
  2. Distribute -1:                 (f - g)(x) = 5x² - 3 - x² + 4x + 8
  3. Combine like terms:    (f - g)(x) = 4x² + 4x + 5
5 0
2 years ago
ANSWER ASAP!! GIVING BRAINLIEST TO FIRST PERSON TO ANSWER BOTH QUESTIONS!!!
matrenka [14]

Answer:

The answer to your question is:

x = 1

Square's perimeter = 12

Rectangle perimeter = 12

The value of x is one and the perimeter of the square and the rectangle is the same.

Step-by-step explanation:

Data

Side of Square = 4x - 1

Length of rectangle = 2x + 1

Width = x + 2

Perimeters are the same

Process

Square perimeter = 4(4x - 1)

Rectangle's perimeter = 2(2x + 1) + 2(x+ 2)

Then

                 4(4x - 1) =  2(2x + 1) + 2(x+ 2)       Equation

                 16x - 4 = 4x + 2 + 2x + 4      

                 16x - 4 = 6x + 6

                 16x - 6x = 6 + 4

                 10x = 10

                 x = 10 / 10

                 x = 1      

Perimeter of the square = 4(4(1) - 1)

                                        = 4(3)

                                        = 12

Perimeter of the rectangle = 2(2(1) + 1) + 2((1)+ 2)

                                            = 2(3) + 2(3)

                                            = 6 + 6

                                            = 12

8 0
3 years ago
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