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2 years ago

If a polygon has six sides, then it is a hexagon. true or false.

Mathematics

1 answer:

slava [35]2 years ago

8 0

If a polygon does not have six sides, then it is not a hexagon.

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Please help with this

ss7ja [257]

Answer:

The tank has a capacity of 6000 liters

2.75 cubic meters of concrete

Step-by-step explanation:

8 0

2 years ago

Wich expression shows the product of 9 and a number?

Monica [59]

Answer:

There are two and they both mean the same thing.

Step-by-step explanation:

1. 9 x (times) n

2. 9n

I hope this helps u! :D

5 0

2 years ago

Please divide 4⁄6 ÷ 2⁄6

dolphi86 [110]

4/6 divided by 2/6 is 2.

you multiply the 4/6 by 6/2 to get 24/12. You then simplify it and get 2 as your answer.

6 0

3 years ago

In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one study

astra-53 [7]

Answer:

C. z = 2.05

Step-by-step explanation:

We have to calculate the test statistic for a test for the diference between proportions.

The sample 1 (year 1995), of size n1=4276 has a proportion of p1=0.384.

$p_1=X_1/n_1=1642/4276=0.384$

The sample 2 (year 2010), of size n2=3908 has a proportion of p2=0.3621.

$p_2=X_2/n_2=1415/3908=0.3621$

The difference between proportions is (p1-p2)=0.0219.

$p_d=p_1-p_2=0.384-0.3621=0.0219$

The pooled proportion, needed to calculate the standard error, is:

$p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{1642+1415}{4276+3908}=\dfrac{3057}{8184}=0.3735$

The estimated standard error of the difference between means is computed using the formula:

$s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.3735*0.6265}{4276}+\dfrac{0.3735*0.6265}{3908}}\\\\\\s_{p1-p2}=\sqrt{0.00005+0.00006}=\sqrt{0.00011}=0.0107$

Then, we can calculate the z-statistic as:

$z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{0.0219-0}{0.0107}=\dfrac{0.0219}{0.0107}=2.05$

z=2.05

4 0

2 years ago

You have discovered another alien. Find the correct rescue path before answering this question. Which statements are true about

IrinaVladis [17]

Answer:

(a) The y-intercept is not visible on the graph.

(D) The line crosses the x-axis at –3

Step-by-step explanation:

i already did this on edge

8 0

2 years ago

Read 2 more answers