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adell [148]
2 years ago
8

Sketch a plane containing points E,D, and B; where E and B are collinear with A , and D is a vertex where CD and FD meet.

Mathematics
1 answer:
Irina18 [472]2 years ago
8 0

Solution:

we have been asked to sketch a plane containing points E, D and B.

where E and B are collinear with A. It mean all thses three points will fall on a straight line. Also D is a vertex where CD and FD meets.

The sketch has been attched below.

Here as you can see three points are in a staright line and we have another one in whuch two vectors CD and FD are meeting at the vertex D.

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A belt and a wallet cost $42 while 7 belts and 4 wallets cost $213. Calculate the cost of each item.
Fittoniya [83]
Let, the cost of a belt = x
cost of a wallet = y

Then, system of equations would be:
x + y = 42
7x + 4y = 213

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Substitute it from 2nd equation, 
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In short, Belt costs $15 and wallet costs $27

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2 years ago
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Malik's solution to the equation , when , is shown below. What error did Malik make first when solving the equation ? Malik did
Marianna [84]

Answer:

Malik substituted 60 for y instead of x.

Step-by-step explanation:

According to the given situation the computation of error that Malik make first when solving the equation is shown below:-

First, we will find the value of x

\frac{2}{5} x - 4(60) = 10

\frac{2}{5} x = 10 + 240

\frac{2}{5} x = 250

x = 625

Now, we have

\frac{2}{5} x - 4 y = 10

we will solve the above equation, to find the value of y

24 - 4y = 10

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Brian invests £1850 into his bank account. He receives 2.7% per year simple interest. How much will Brian have after 3 years? Gi
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Answer:

£1999.85

Step-by-step explanation:

A = P(1 + rt)

Where:

A = Amount after t years

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t = Time in years = 3 years

Calculation:

First, converting R percent to r a decimal

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Solving our equation:

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Therefore, Brian will have £1999.85 after 3 years.

3 0
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