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3 years ago

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Mr and Mrs Kosley took their dog on a walk. Mr Kosley walks 5mph and Mrs Kosley walks 6mph. The dog walks 10mph. On the path, th

e dog ran back and forth between Mr and Mrs Kosley. After an hour how far did the dog run?

1 answer:

Nuetrik [128]3 years ago

3 0

Answer:

ok boomer

Step-by-step explanation:

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james

Step-by-step explanation:

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3 years ago

I need help with this Algebra question

Ainat [17]

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Step 2 = Addition Property ( adding like terms)

Step 3 = Addition Property (adding 34x to each side)

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3 years ago

Pls help me I will pick brainliest answer with tape diagram

NikAS [45]

Answer:

5mins- 300s

210mins- 12600s

5mins-3

210mins-?

300/3=12600/x

x=12600/300 x 3

=126

or 210/5=42

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3 years ago

A past survey of students taking a standardized test revealed that % of the students were planning on studying engineering in c

Angelina_Jolie [31]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The 95% confidence interval is $-0.00870$

Step-by-step explanation:

From the question we are told that

The first sample size is $n_1 = 1068000$

The first proportion $\r p_1 = 0.084$

The second sample size is $n_2 = 1476000$

The second proportion is $\r p_2 = 0.092$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = (100 - 95)\%$

$\alpha = 0.05$

From the normal distribution table we obtain the critical value of $\frac{ \alpha }{2}$ the value is

$Z_{\frac{\alpha }{2} } =z_c= 1.96$

Now using the formula from the question to construct the 95% confidence interval we have

$(\r p_1 - \r p_2 )- z_c \sqrt{ \frac{\r p_1 \r q_1 }{n_1} + \frac{\r p_2 \r q_2 }{n_2} }$

Here $\r q_1 = 1 - \r p_1$

=> $\r q_1 = 1 - 0.084$

=> $\r q = 0.916$

and

$\r q_2 = 1 - \r p_2$

=> $\r q_2 = 1 - 0.092$

=> $\r q_2 = 0.908$

So

$(0.084 - 0.092 )- (1.96)* \sqrt{ \frac{0.092* 0.916 }{1068000} + \frac{0.084* 0.908 }{1476000} }$

$-0.00870$

3 0

3 years ago

Perform the indicated operation

Misha Larkins [42]

Answer:

3/4

Step-by-step explanation:

1 1/4 * 3/5

Change the mixed number to an improper fraction

1 1/4 = (4*1+1)/4 = 5/4

5/4* 3/5

The 5's cancel

3/4

4 0

3 years ago

Read 2 more answers