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andreev551 [17]
3 years ago
8

An investment of $1,800 in the stock market

Mathematics
1 answer:
zimovet [89]3 years ago
7 0

Answer:

The simple interest formula is I =PrT

Here I = 378, P = 1800, T = 2

substitute

378 =1800*r*2

r = 378/3600 = .105, i.e. 10.5%

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
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The diameter of a circle has endpoints P(-12, -4) and Q(6, 12).
nexus9112 [7]

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Answer:

  (x +3)² +(y -4)² = 145

Step-by-step explanation:

The center of the circle is the midpoint of the given segment PQ. If we call that point A, then ...

  A = (P +Q)/2

  A = ((-12, -4) +(6, 12))/2 = (-12+6, -4+12)/2 = (-6, 8)/2

  A = (-3, 4)

The equation of the circle for some radius r is ...

  (x -(-3))² +(y -4)² = r² . . . . . . where (-3, 4) is the center of the circle

The value of r² can be found by substituting either of the points on the circle. If we use Q, then we have ...

  (6 +3)² +(12 -4)² = r² = 9² +8²

  r² = 81 +64 = 145

Then the equation of the circle is ...

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3 0
3 years ago
Given that the measure of angle 6 is 1/8 of measure of angle 4. Find the measures of these two angles if a∥b.
vredina [299]

Answer:

see explanation

Step-by-step explanation:

Let ∠4 be x then ∠6 is \frac{1}{8} x

∠4 and ∠6 are same side interior angles and are supplementary, thus

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Multiply through by 8 to clear the fraction

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Hence ∠4 = 160° and ∠6 = 160° ÷ 8 = 20°

8 0
3 years ago
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Ulleksa [173]

Answer:

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Step-by-step explanation:

180-20 = 160

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3 years ago
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Whats the name of this shape
Step2247 [10]

Answer:

The name of the shape is called a

<h3>Square frustum</h3>

Hope this helps you

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3 years ago
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