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3 years ago

Your friend defines a right angle as an angle that is greater than an acute angle

Mathematics

2 answers:

Alla [95]3 years ago

4 0

Answer:

obtuse angle

Step-by-step explanation:

because it is 180 degrees.

Leviafan [203]3 years ago

3 0

Answer:

a right angle is an angle that is exactly 90*.

Step-by-step explanation:

acute angles are defined as anything less than or equal to 89* and the opposite for obtuse angles. A right angle is exactly 90*.

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A recycling center pays 25 cents per aluminum can recycled at its facility. If Tracy recycles 5 aluminum cans there, how many do

USPshnik [31]

If Tracy recycles 5 and each is 25 cents

5 times 0.25 equals 1.25

She would get$1.25 for recycling 5 cans

3 0

3 years ago

I not very good with slope and y intercept form. any tips ?

jeyben [28]

Step-by-step explanation:

To find the slope you use the slope formula which is y2-y2/x2-x1

And to find the y intercept you use y=mx +b. Yous substitute the slope as m and you substitute a point from the line to find b. Which is the y intercept

4 0

3 years ago

According to The Wedding Report, Inc., the mean cost for a wedding in the United States is $28732 (as of November 2008). Suppose

Stella [2.4K]

Answer:

Following are the solution to the given points:

Step-by-step explanation:

$X = \text{cost of wedding}\sim \text{Normal}\ (\mu = 28732, \sigma= 1500)\\\\$

For point a:

$Probability\ = 0.00000359\\\\ \text{(Using Excel function:} =NORMDIST(22000,28732,1500,1)).$

For point b:

$Probability \ = 0.014678\\\\\text{(Using Excel function:} =1-NORMDIST(32000,28732,1500,1))\\\\$

For point c:

$Probability\ = 0.794614436 \\\\$

$\text{(Using Excel function:} \\=NORMDIST (30000,28732,1500,1)-NORMDIST(25000,28732,1500,1))\\\\$

For point d:

$Q_1 = 27720.26537 \\\\\text{(Using Excel function:} =NORMINV(0.25,28732,1500)) \\\\Q_3 = 29743.73463 \\\\\text{(Using Excel function:} =NORMINV(0.75,28732,1500)).$

For point e:

$IQR = Q_3 - Q_1 = 29743.73463 - 27720.26537 = 2023.469251.$

For point f:

$Top\ 10\% = 30654.32735 \\\\\text{(Using Excel function:} =NORMINV(0.9,28732,1500)).$

5 0

2 years ago

As a result of the installation of a muffler, the noise level of an engine was reduced from 89 to 72 decibels. Find the percent

Jobisdone [24]

Answer:

Step-by-step explanation:

Using the formula

Initial -final/initial =%/100

89-72/89 =%/100

17/89 =%/100

Making %subject of the formula

% =17*100/89

So % =1700/89

%= 19.101

Therefore rounding off the answer we have

X=19%

4 0

3 years ago

When you divide a decimal by a decimal why do you multiply the dividend and the divisor by a power of 10

Xelga [282]

To make both sides of the equations equal and balanced.

7 0

3 years ago