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kap26 [50]
2 years ago
15

A map shows that the vertices of a backyard are $W\left(-100,-70\right),\ X\left(-100,0\right),\ Y\left(0,0\right),$ and $Z\left

(-60,-70\right)$ . The coordinates are measured in feet. The line segment $XZ$ separates the backyard into a lawn and a garden. The area of the lawn is greater than the area of the garden. How many times larger is the lawn than the garden?
Mathematics
1 answer:
vichka [17]2 years ago
4 0

i need a picture to answer this

Step-by-step explanation:

bc i said so

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Researchers are monitoring two different radioactive substances. They have 300 grams of substance A which decays at a rate of 0.
Inessa [10]
To model this situation we are going to use the exponential decay function: f(t)=a(1-b)^t
where
f(t) is the final amount remaining after t years of decay
a is the initial amount
b is the decay rate in decimal form 
t is the time in years 

For substance A:
Since we have 300 grams of the substance, a=300. To convert the decay rate to decimal form, we are going to divide the rate by 100%:
r= \frac{0.15}{100} =0.0015. Replacing the values in our function:
f(t)=a(1-b)^t
f(t)=300(1-0.0015)^t
f(t)=300(0.9985)^t equation (1)

For substance B:
Since we have 500 grams of the substance, a=500. To convert the decay rate to decimal form, we are going to divide the rate by 100%:
r= \frac{0.37}{100} =0.0037. Replacing the values in our function:
f(t)=a(1-b)^t
f(t)=500(1-0.0037)^t
f(t)=500(0.9963)^t equation (2)

Since they are trying to determine how many years it will be before the substances have an equal massM, we can replace f(t) with M in both equations:
M=300(0.9985)^t equation (1)
M=500(0.9963)^t equation (2) 

We can conclude that the system of equations that can be used to determine <span>how long it will be before the substances have an equal mass, </span>M, is:
\left \{ {{M=300(0.9985)^t} \atop {M=500(0.9963)^t}} \right.

Solving the system, we can show that it will take approximately 231.59 years for that to happen.
5 0
3 years ago
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For the high school basketball game, it costs $8 for every 2 tickets.
matrenka [14]

Answer:

$8   16    24     32   40     48      56      64   72      80

---------------------------------------------------------------------------

4     8     12     16    20     24     28     32     36     40

Step-by-step explanation:

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2 years ago
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Burke Middle School has an $80 budget to stock the concession stand with drinks at the spring play. Each drink costs the school
svetlana [45]

Answer:240

I know this is annoying but, i took the question in Edgenuity

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A community center has an l shaped swimming pool that is 10 feet deep. What is the volume of the pool?
nataly862011 [7]
A because that is the maximam limet
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3 years ago
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Plz help for last 2?
VikaD [51]

139.25 in = 11 ft 7.25 in

149 3/16 in= 12 ft 5.2 in

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