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3 years ago

Please help me look at the attachment for the question

Mathematics

1 answer:

LenaWriter [7]3 years ago

6 0

Found this when I was doing my own work, hope this helps.

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There are some nickels, dimes, and quarters in a large piggy bank. For every 2 nickels there are 3 dimes. For every 2 dimes ther

Novay_Z [31]

Answer:

thats a lot of work....

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 122 feet. A transportat

madreJ [45]

Complete Question

The complete question is shown on the first uploaded image

Answer:

the null hypothesis is $H_o : \mu = 122$

the alternative hypothesis is $H_a : \mu \ne 122$

The test statistics is $t = - 1.761$

The p-value is $p = P(Z < t ) = 0.039119$

$p \ge 0.01$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 122$

The sample size is n= 38

The sample mean is $\= x = 116 \ feet$

The standard deviation is $\sigma = 21$

Generally the null hypothesis is $H_o : \mu = 122$

the alternative hypothesis is $H_a : \mu \ne 122$

Generally the test statistics is mathematically evaluated as

$t = \frac { \= x - \mu }{\frac{ \sigma }{ \sqrt{n} } }$

substituting values

$t = \frac { 116 - 122 }{\frac{ 21 }{ \sqrt{ 38} } }$

$t = - 1.761$

The p-value is mathematically represented as

$p = P(Z < t )$

From the z- table

$p = P(Z < t ) = 0.039119$

$p \ge 0.01$

4 0

3 years ago

Solve 2 + 1/6y = 3x + 4 for y.

ruslelena [56]

The answer is y=18x+12

5 0

3 years ago

Which values are in the solution set of 111 = z^2 + 11 if the replacement set is {10, 12, 14, 16, 18}?

pantera1 [17]

Answer:

Step-by-step explanation:

Z ^2+11=111

Z ^2=100

Z=10

8 0

2 years ago

If LN = 6x – 5, LM = x + 7, and MN = 3x + 20, find MN.

nikklg [1K]

Answer:

LM = LN + MN [ assuming N is a point between L and M ]

$(x + 7) = (6x - 5) + (3x + 20) \\ x + 7 = 9x + 15 \\ 8x = - 8 \\ { \underline{x = - 1}}$

then find MN:

$MN = 3x + 20 \\ MN = 3( - 1) + 20 = - 3 + 20\\ { \boxed{ \boxed{MN = 17}}}$

4 0

2 years ago