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Sloan [31]
3 years ago
15

According to these three facts, which statements are true? Circle D has center (2, 3) and radius 7. Circle F is a translation of

circle D, 2 units right. Circle F is a dilation of circle D with a scale factor of 1.5.
Choose exactly two answers that are correct.
.Circle F and circle D are similar.
.The radius of circle F is 10.5.
.Circle F and circle D are congruent.
.The center of circle F is (0, 3).
Mathematics
1 answer:
zavuch27 [327]3 years ago
7 0
A and B are correct.

ALL circles are similar, because they are all literally a circle; the same shape all around. Also if you were to dilate a radius of 7 by 1.5, you are multiplying 7 by 1.5.
7 x 1.5 = 10.5

I hope this helps!
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shutvik [7]

Presumably, ln⁵(<em>x</em>) is the same as (ln(<em>x</em>))⁵ (as opposed to a quintuply-nested logarithm, log(log(log(log(log(<em>x</em>)))))).

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3 years ago
1. A game is set up as follows: All the diamonds are removed from a deck of cards, and these 13 cards are placed in a bag. The c
Maurinko [17]

Answer:

the game must be played in groups of 13 draws, with a cost of $28 for the 13 draws.

Step-by-step explanation:

Probability of drawing any of the 13 balls is the same. So the expected value of play is the average of the values of each card.

The only losing card is the ace; the player loses $20 if that card is drawn.

Each of the 3 face cards wins $10; each of the remaining 9 cards wins $2.

So the average value of each draw is

\frac{-20+3\times10+9\times2}{13}

= 28/13

Therefore, on average the player will win $ 28/13.  to be a fair game the player must pay  $28/13 for a game.

that is not possible, unless the game must be played in groups of 13 draws, with a cost of $28 for the 13 draws.

7 0
3 years ago
Which values are solutions to the inequality below? <br><br>Check all that apply.<br><br>x2 &lt; 81
11111nata11111 [884]
A(6) and D(-4) are solutions to the equations

(6)^2 < 81  |  36 < 81

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5 0
3 years ago
Read 2 more answers
surveyor stands 100 m from the base of a tower on which an antenna stands. He measures the angles of elevation to the top and bo
balu736 [363]

Answer: 36.3m

Step-by-step explanation:

To solve this, we can draw two triangle rectangles, where the distance between the man and the base of the tower is one of the cathetus, the adjacent one, the height will be the opposite cathetus.

The triangle where the elevation angle is 58° is associated with the height of the tower without the aerial

The other triangle, where the elevation angle is 63° is associated with the height of the tower with the aerial.

Then we can calculate those two heights, then compute the difference, and the difference will be equal to the height of the aerial.

In both cases we want to calculate the opposite cathetus, then we should use the relation:

Tan(θ) = (Op. cath)/(Adj. cath)

The height without the aerial is h1, let's find it:

Tan(58°) = h1/100m

Tan(58°)*100m = h1 = 160m.

The height with the aerial is h2, let's find it:

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Then the height of the aerial will be:

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6 0
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Answer:

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Step-by-step explanation:

The expression can be fully factored as ...

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Of course any of the terms can be broken apart and/or combined in different ways:

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6 0
3 years ago
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