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Law Incorporation [45]
3 years ago
10

True or False - the following scenario depicts an independent relationship between variables (tree growth and air quality): 20%

of trees growing in a particular region are not growing to their expected height. In a particular neighborhood in that region, the Air Quality Index is labeled as "Unhealthy for Sensitive Groups" or worse 30% of the time. 10% of the trees in the region grow in this neighborhood. If you randomly measured the growth of a tree in that neighborhood, then the probability that that tree is not growing to its expected height is 33.33%.
Mathematics
2 answers:
Aneli [31]3 years ago
7 0
True it will be true
Montano1993 [528]3 years ago
4 0
True i believe


explanation:
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Customers who purchase museum tickets in advance receive 10% off the regular admission price. Anias paid a sale price of $54. He
alisha [4.7K]

Answer:

Regular price of a ticket = $60

Step-by-step explanation:

Given:

On purchasing museum tickets in advance customers get 10% off on the regular price of ticket.

Anias paid the sale price of ticket = $54

To find the regular price of ticket.

Solution:

Let the regular price of ticket in dollars be =x

Discount offered for booking in advance = 10%

Discount amount in dollars = Discount\ percent \times Regular\ price=10% \times x =0.10 \times x =0.1x

Sale price of a ticket in dollars= Regular price - Discount amount= x-0.1x=0.9x

Sale price given for a ticket = $54

So, we have:

0.9x=54

Dividing both sides by 0.9

\frac{0.9x}{0.9}=\frac{54}{0.9}

∴ x=60

∴ Regular price of a ticket = $60

6 0
3 years ago
Read 2 more answers
Solve quadratic formulax^2-4x+3=0
bekas [8.4K]

The general formula for a equation of the form:

ax^2+bx+c=0

is:

x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}

In this case we notice that a=1, b=-4 and c=3. Plugging this values in the general formula we get:

\begin{gathered} x=\frac{-(-4)\pm\sqrt[]{(-4)^2-4(1)(3)}}{2(1)} \\ =\frac{4\pm\sqrt[]{16-12}}{2} \\ =\frac{4\pm\sqrt[]{4}}{2} \\ =\frac{4\pm2}{2} \end{gathered}

then:

x_1=\frac{4+2}{2}=\frac{6}{2}=3

and

x_2=\frac{4-2}{2}=\frac{2}{2}=1

Therefore, x=3 or x=1.

8 0
11 months ago
Liam is setting up folding chairs for a meeting. If he arranges the chairs in 4 rows of the same length, he has 7 chairs left ov
saw5 [17]
75 chairs

Hope this help you!

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3 years ago
List the shapes in order of area from greatest to least. <br> Captionless Image
Phantasy [73]

Answer:

Step-by-step explanation:

can you repost with the image

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2 years ago
If the slope of the line is -4, find y when (2,y) and (3,8).
charle [14.2K]

Answer:

y=12

Step-by-step explanation:

8=-4*3 +b

8=-12=b

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y=-4x=20

-4*2 is -8+20 is 12

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8 0
3 years ago
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