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3 years ago

Find the area of the triangle. 21in. 41in.

Mathematics

2 answers:

pashok25 [27]3 years ago

3 0

The area of the triangle is 430.5 sq. in.

Elis [28]3 years ago

3 0

Answer:

21*41=861

861/2=430.2 because it is a triangle

Step-by-step explanation:

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uppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.2 and a standard deviation of 1.49. Us

liubo4ka [24]

Answer:

99.85% of American women have shoe sizes that are less than 12.67

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 8.2

Standard deviation = 1.49

Using the empirical rule, what percentage of American women have shoe sizes that are less than 12.67

12.67 = 8.2 + 3*1.49

12.67 is 3 standard deviations above the mean.

Since the normal distribution is symmetric, 50% of the measures are below the mean and 50% are above. Of those 50% above, 99.7% are between the mean and 12.67. So

0.5 + 0.997*0.5 = 0.9985

99.85% of American women have shoe sizes that are less than 12.67

6 0

3 years ago

A craftsperson must attach a lead strip around all four sides of a stained glass window that is

barxatty [35]

Answer: 37.9 inch the length of lead stripping .

Step-by-step explanation:

Given ,

Sides of windows are $6\frac{4}{5}$ and $15\frac{14}{25}$

$= (6\frac{4}{5} + 15 \frac{14}{25} ) * 2\\ \\=\frac{34}{5} + \frac{389}{25} * 2\\\\ \frac{170}{25} + \frac{389}{25}* 2 \\\\= \frac{559}{25} * 2\\\\= \frac{948}{25} \\\\= 37.9 inch$

So , the answer is 37.9 inch

#SPJ1

5 0

2 years ago

Mario wants to play games at video -arcade. He is trying to find arcade based on entry fees and hourly rate:

andrew-mc [135]

If Mario wants to play for 3hrs or less he should go to Invader arcade, but if he wants to play for more than 3 hours he should go to Pinball arcade.

I attached a photo showing the table and work, hope this helps:)

5 0

3 years ago

Simplify: this problem please im confused

nignag [31]

Answer:

2.4

Step-by-step explanation:

-3.6+2=-1.6, -1.6*-1.5=2.4

7 0

3 years ago

Read 2 more answers

What’s the answer??(SOMEONE PLEASE HELP ME)

aleksandr82 [10.1K]

We know that According to Algebra of Real Functions :

If f and g are two real functions which are defined under the same domain then $(\frac{f}{g})(x) = \frac{f(x)}{g(x)}$

$\implies Given\;Function\;is\;\frac{-1}{x\sqrt{3x - 9}}$

Now we need find the Domain of this Function :

The Condition for Square Root to be defined is any Expression under it should be Greater than or Equal to Zero.

When Function is a Fraction, it Cannot be defined when the denominator becomes zero. Because when the denominator is zero, the fraction tends to ∞ (because anything divided by zero tends to ∞)

According to Above Conditions Described above, The Given Function is Definable only when the Expression which is under the Square Root is Greater than Zero and x ≠ 0

⇒ 3x - 9 > 0

⇒ 3x > 9

⇒ x > 3

⇒ The Domain of the Given Function is (3 , ∞)

1st Option is the Answer

6 0

4 years ago