First, add up his total.
79.95+2*19.99=119.93
Then multiply by 1.075 (this will add the tax to the amount)
That gives us 128.92475, which we can simplify to 128.92
He had to pay $128.92

8 0

3 years ago

What is the square root of 36/196 √36/169

Andrei [34K]

Answer:

The square root of 36/196 is 3/7.

The square root of 36/169 is 6/13.

5 0

2 years ago

Read 2 more answers

Dan divide a pie into eighths.how many equal parts are their

cluponka [151]

There are 8 equal parts. Each part is 1/8 of the whole 8/8

3 0

3 years ago

Read 2 more answers

Engineers want to design passenger seats in commercial aircraft so that they are wide enough to fit 95 percent of adult men. Ass

zimovet [89]

Answer:

$z=1.64$

And if we solve for a we got

$a=14.4 +1.64*1.1=16.204$

The 95th percentile of the hip breadth of adult men is 16.2 inches.

Step-by-step explanation:

Let X the random variable that represent the hips breadths of a population, and for this case we know the distribution for X is given by:

$X \sim N(14.4,1.1)$

Where $\mu=14.4$ and $\sigma=1.1$

For this part we want to find a value a, such that we satisfy this condition:

$P(X>a)=0.05$ (a)

$P(X$ (b)

We can find a quantile in the normal standard distribution who accumulates 0.95 of the area on the left and 0.05 of the area on the right it's z=1.64

Using this value we can set up the following equation:

$P(X$

$P(z$

And we have:

$z=1.64$

And if we solve for a we got

$a=14.4 +1.64*1.1=16.204$

The 95th percentile of the hip breadth of adult men is 16.2 inches.

8 0

3 years ago