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3 years ago

PLEASE SOLVE AND SHOW STEPS!! ILL PAY REAL MONEY! DM ME

Mathematics

2 answers:

aleksandrvk [35]3 years ago

8 0

Answer:

$z=k-\frac{8T}{9} -\frac{a}{9}$

Step-by-step explanation:

$9k-8T=9z+a\\9k-8T-a = 9z\\\frac{9k-8T-a }{9}= \frac{9z}{9} \\k-\frac{8T}{9} -\frac{a}{9} = z\\z=k-\frac{8T}{9} -\frac{a}{9}$

Alisiya [41]3 years ago

7 0

Answer:

how much tho?

Step-by-step explanation:

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Compute the sales tax on the following transactions. An article retails for $37.50. The city sales tax is 6%, and the federal ex

ratelena [41]

First you must find the rate of both taxes. Since its 8% and 6%, you must add them both together, then divide them by 100.

14/100 = .14

Then for both rates you must add 1 because it is a tax increase.

1 + .14 = 1.14

Finally times 37.50 with 1.14

37.50(1.14) = 42.75

$42.75 is the answer.

7 0

3 years ago

Read 2 more answers

Which describes the correlation shown in the scatterplot?

xenn [34]

Answer:

I don't know..

Sorry for spamming...

6 0

3 years ago

Solve the following formula for x y = 7 m x − 8 b

katovenus [111]

Answer: It depends on which variable you're solving for.

Step-by-step explanation:

Solving for b: b=7/8mx + -1/8xy

Solving for m: m=xy+8b

______

Solving for x: x=-8b

___

-7m+y

Solving for y: y=7mx-8b

______

7 0

2 years ago

A laboratory scale is known to have a standard deviation (sigma) or 0.001 g in repeated weighings. Scale readings in repeated we

weqwewe [10]

Answer:

99% confidence interval for the given specimen is [3.4125 , 3.4155].

Step-by-step explanation:

We are given that a laboratory scale is known to have a standard deviation (sigma) or 0.001 g in repeated weighing. Scale readings in repeated weighing are Normally distributed with mean equal to the true weight of the specimen.

Three weighing of a specimen on this scale give 3.412, 3.416, and 3.414 g.

Firstly, the pivotal quantity for 99% confidence interval for the true mean specimen is given by;

P.Q. = $\frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\bar X$ = sample mean weighing of specimen = $\frac{3.412+3.416+3.414}{3}$ = 3.414 g

$\sigma$ = population standard deviation = 0.001 g

n = sample of specimen = 3

$\mu$ = population mean

Here for constructing 99% confidence interval we have used z statistics because we know about population standard deviation (sigma).

So, 99% confidence interval for the population mean, $\mu$ is ;

P(-2.5758 < N(0,1) < 2.5758) = 0.99 {As the critical value of z at 0.5% level

of significance are -2.5758 & 2.5758}

P(-2.5758 < $\frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } }$ < 2.5758) = 0.99

P( $-2.5758 \times {\frac{\sigma}{\sqrt{n} } }$ < ${\bar X - \mu}$ < $2.5758 \times {\frac{\sigma}{\sqrt{n} } }$ ) = 0.99

P( $\bar X-2.5758 \times {\frac{\sigma}{\sqrt{n} } }$ < $\mu$ < $\bar X+2.5758 \times {\frac{\sigma}{\sqrt{n} } }$ ) = 0.99

99% confidence interval for $\mu$ = [ $\bar X-2.5758 \times {\frac{\sigma}{\sqrt{n} } }$ , $\bar X+2.5758 \times {\frac{\sigma}{\sqrt{n} } }$ ]

= [ $3.414-2.5758 \times {\frac{0.001}{\sqrt{3} } }$ , $3.414+2.5758 \times {\frac{0.001}{\sqrt{3} } }$ ]

= [3.4125 , 3.4155]

Therefore, 99% confidence interval for this specimen is [3.4125 , 3.4155].

6 0

3 years ago

I got nut in my but just finished giving head locked up with the feds took a lot of meds I gotta go to bed before i cut my dread

Evgen [1.6K]

Answer:

what are you talking about???

Step-by-step explanation:

brainliest and chill bro

5 0

3 years ago