2 years ago

If the diagonal of a square is 11.3 meters, approximidley what is the perimeter of the square?

Mathematics

1 answer:

Andrei [34K]2 years ago

8 0

Answer:

About 9.6 meters

Step-by-step explanation:

Refer to attachment

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Hazel covered a box with felt. The dimensions of the box are shown in the figure below:

maria [59]

<span>$36.36 because the area of the prism is 404sq. in. , 404x0.09 (for nine cents per sq. in.) = 36.36
</span>
Hope this helps!! :)

8 0

2 years ago

A sociologist wishes to estimate the average number of automobile thefts in a large city per day within 2 automobiles. He wishes

anzhelika [568]

Answer:

$n=(\frac{2.58(4.2)}{2})^2 =29.35 \approx 30$

So the answer for this case would be n=30 rounded up to the nearest integer

Step-by-step explanation:

Information given

$ME = 2$ the margin of error desired

$\sigma =4.2$ standard deviation from previous studies

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =2 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance level is $\alpha=0.01$ and the critical value would be $z_{\alpha/2}=2.58$ , replacing into formula (b) we got:

$n=(\frac{2.58(4.2)}{2})^2 =29.35 \approx 30$

So the answer for this case would be n=30 rounded up to the nearest integer

5 0

2 years ago

A grocery store gives away a $10 gift card to every 25th customer and a $20 gift card to every 60th customer. Which customer wil

Novosadov [1.4K]

The 300th customer would be the first to recieve both. They would have given away 5 of the 20$ gift cards and 12 of the 10$ ones for a total of 17 gift cards.

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2 years ago

23.7 – y when y = 10

sveta [45]

10.7
23.7-10=10
that r the maths

6 0

2 years ago

Read 2 more answers

There are 9 red and 6 green marbles in a bag. a child reaches in the bag and randomly takes one marble. what is the probability

german

Probability of green= # of green marbles ÷ total # of marbles

= 6 ÷ (6 + 9)

= 0.4 OR $\frac{2}{5}$

8 0

2 years ago