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Mathematics

1 answer:

fomenos3 years ago

3 0

Answer:

Step-by-step explanation:

Triangle:

Base = 4 units

Height = 3 units {perpendicular height}

$Area=\frac{1}{2}*base*height\\\\=\frac{1}{2}*4*3\\\\=2*3$

= 6 square units

Rectangle:

To find the area count the number of squares. Number of square = 6

Area = 6 square units

or You can find the area of the rectangle as bellow also

Length = 3 units

Width = 2 units

Area = length*width

= 3*2

= 6 square units

Both the triangle and rectangles has the same area 6 square units

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Suppose that 20% of the residents in a certain state support an increase in the property tax. An opinion poll will randomly samp

ivanzaharov [21]

Answer:

Roughly a 95% chance.

Step-by-step explanation:

The standard deviation of sample of size 'n' and with a proportion 'p' is given by:

$SD = \sqrt{\frac{p*(1-p)}{n} }$

In this case, in a sample of 400 residents with proportion 20%, the standard deviation is:

$SD=\sqrt{\frac{0.2*(1-0.2)}{400} }\\ SD=0.02$

The upper and lower limits proposed (0.16 and 0.24) are exactly two standard deviations above and below the mean of 0.20. According to the 95% rule, this interval comprehends 95% of all data. Therefore, there is roughly a 95% chance that the resulting sample proportion will be within 0.04 of the true proportion.

3 0

3 years ago

Read 2 more answers

If you run 3 miles per day, how many total miles would you run in x days?

Vladimir [108]

Answer:

Step-by-step explanation:

The answer is 3 times x.

Because we do not know how much days you are running for, replace the it with x.

x = the number of days you have ran.

Hopes this helps you.

7 0