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Fiesta28 [93]
4 years ago
12

A triangle with vertices at A(0, 0), B(0, 4), and C(6, 0) is dilated to yield a triangle with vertices at A′(0, 0), B′(0, 10), a

nd C′(15, 0)-. The origin is the center of dilation. What is the scale factor of the dilation?
Mathematics
2 answers:
Cerrena [4.2K]4 years ago
6 0
K · ( 0, 0 ) = ( 0 , 0 )
k · ( 0 , 4 ) = ( 0 , 10 )
k · ( 6, 0 ) = ( 15, 0 )
k = 15/6 = 10/4 = 2.5
Answer: The scale of dilation is 2.5
LenKa [72]4 years ago
6 0

The answer would be c 2.5

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If you open an account that compounds quarterly in 2020. In what year will it double the starting amount if it has an APR of 3.2
Lerok [7]

Answer:

It will double in the year 2063

Step-by-step explanation:

Let the amount deposited be $x, when it doubles, the amount becomes $2x

we can use the compound interest formula to know when this will happen

The compound interest formula is as follows;

A = P(1+r/n)^nt

In this question,

A is the amount which is 2 times the principal and this is $2x

P is called the principal and it is the amount deposited which is $x

r is the interest rate which is 3.2% = 3.2/100 = 0.032

n is the number of times compounding takes place per year which is quarterly which equals to 4

t is the number of years which we want to calculate.

Substituting all these into the equation, we have;

2x = x(1+0.032/4)^4t

divide through by x

2 = (1+ 0.008)^4t

2 = (1.008)^4t

we use logarithm here

Take log of both sides

log 2 = log (1.008)^2t

log 2 = 2t log 1.008

2t = log 2/log 1.008

2t = 86.98

t = 86.98/2

t =43.49 which is 43 years approximately

Thus the year the money will double will be 2020 + 43 years = 2063

8 0
3 years ago
The figure shows a circle circumscribed around a triangle.
e-lub [12.9K]

Option B is right perpendicular bisectors of the sides of the triangle

<h3>What circumcircle?</h3>

If we draw a circle through all the vertices of a triangle then the circle obtained is the circumcircle of the given triangle. We have in a triangle there are some properties inherent.

One is the perpendicular bisectors of all sides are concurrent. These three concur at a point called the circumcentre of the triangle.

When we draw a perpendicular bisector for a side AB, we get that all points on the perpendicular bisector are equidistant from A and B.

When we take the point of intersection of the perpendicular bisector of AB and BC, we have the intersecting point S(say) is equidistant from A and B and also from B and C

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To know more about triangles follow

brainly.com/question/17335144

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4 0
2 years ago
9. Simplify the expression: 8(5x-3y) *
olasank [31]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Express as a trinomial <br> (3x + 8)(2x + 1)
NeX [460]

Answer:

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(3x+8)(2x+1) use foil method which gives you,

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8 0
3 years ago
Which description matches the graph of the inequality y ≥ |x + 2| – 3? a shaded region above a solid boundary line a shaded regi
Alex777 [14]
The given inequality is y ≥ |x + 2| -3.

This inequality may be written two ways:
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A graph of the inequality is shown below. The shaded region satisfies the inequality.

Answer: A shaded region above a solid boundary line.

6 0
3 years ago
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