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quester [9]
2 years ago
5

What is the right angle postulate? Definition and how to use it

Mathematics
1 answer:
saw5 [17]2 years ago
4 0

Answer:

Search  it up!

Step-by-step explanation:

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A boat has a speed of 15 mph in still water. It travels downstream from Greentown to Glenavon in g hours. It then goes back upst
Lerok [7]

Step-by-step explanation:

We want to find two things-- the speed of the boat in still water and the speed of the current.  Each of these things will be represented by a different variable:

B = speed of the boat in still water  

C = speed of the current

Since we have two variables, we will need to find a system of two equations to solve.

How do we find the two equations we need?  

Rate problems are based on the relationship Distance = (Rate)(Time).


Fill in the chart with your data (chart attached)

The resulting speed of the boat (traveling upstream) is B-C miles per hour.  On the other hand, if the boat is traveling downstream, the current will be pushing the boat faster, and the boat's speed will increase by C miles per hour.  The resulting speed of the boat (traveling downstream) is B+C miles per hour.  Put this info in the second column in the chart.  Now plug it into a formula! <u>Distance=(Rate)(Time) </u>Now solve using the systems of equations!

6 0
3 years ago
The polynomial below is a perfect square trinomial of the form A^2 - 2AB + B^2
WITCHER [35]

Answer:

True

Step-by-step explanation:

9x^2-12x +4 \\\\=(3x)^2 - 2\cdot 3x \cdot 2+2^2\\\\=(3x-2)^2

4 0
2 years ago
Richard Lens receives a 3.5% commission for selling cleaning supplies. What is his commission on sales of $122,591?
LekaFEV [45]

Answer:

$4,290.69

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

- To find the commission, just convert the percentage into a decimal (divide by 100) and multiply it by the sales.

3.5% = 0.035

122,591 x 0.035 = <em>$4,290.69</em>

5 0
3 years ago
Read 2 more answers
Laura deposits $10,000 into an account that compounds interest continuously
julia-pushkina [17]

Answer:15.5 because you have to take away some point

Step-by-step explanation:

5 0
2 years ago
You purchase a car using a $20,000 loan with a 5% simple interest rate.
Aliun [14]

Answer: check out MATHPORTAL.com


Step-by-step explanation:


3 0
3 years ago
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