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Wittaler [7]
2 years ago
15

Find the approximate area of a triangle that has vertices at A(-4,2),B(6,4)C(3,-1)

Mathematics
1 answer:
MrMuchimi2 years ago
6 0

area \: of \: triangle \:  =  \frac{1}{2}  |( - 16) - (22)|
=  \frac{1}{2}  | - 44|
= | - 22|
area \: of \: triangle \:  = 22
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Christian’s Gym charges a one-time fee of $50 plus $30 per session for a personal trainer.
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Answer: For 10 sessions, the cost of the two plans the same.

Step-by-step explanation:

Let x= Number of sessions.

Given: Christian’s Gym charges a one-time fee of $50 plus $30 per session for a personal trainer.

Total charge for x sessions = 50+30x

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Total charge for x sessions = 250+10x

When both plan charges the same, then

50+30x=250+10x\\\\\Rightarrow\ 30x-10x=250-50\\\\\Rightarrow\ 20x=200\\\\\Rightarrow\ x=10

i.e. For 10 sessions, the cost of the two plans the same.

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When we make inferences about ONE POPULATION PROPORTION, what assumptions do we need to make? Mark all that apply. Group of answ
natita [175]

Answer:

Data is quantitative, data is categorical, data must be from a simple random sample, the data mut have normal distribution,

Step-by-step explanation:

When we make inference about one population proportion, we must ensure that the sample was taken randomly and observations follow a normal distribution. The sample size must be as large as possible with at least 10 counts of failures an 10 counts of successes. The  individual observations must be independent. They must be quantified and categorized.

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3 years ago
A. Is this an arithmetic sequence? How do you know?
pogonyaev

Answer:

a. Yes. The difference is common and equal to $1750

b. $1750

c. $20000 was initial investment

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e. After another 10 years (on the top of 5 given) the investment will be:

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f. After 20 years the value of investment will be:

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Step-by-step explanation:

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Vinil7 [7]

Answer:

This equation is equal to y=3/2x-2

Step-by-step explanation:

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2 years ago
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