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madam [21]
3 years ago
12

Are the triangles similar? If so, what postulate or theorem proves their similarity?

Mathematics
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

SAS, two given sides are 40% longer, one angle is shared

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Isabel purchased a prepaid phone card for $20. Long-distance calls cost 18 cents a minute using this card. Isabel used her card
Mandarinka [93]

Answer:

20 - .07c = 17.13

20 - 17.13 = 2.87

2.87/7 = 41

Her call took 41 minutes

Step-by-step explanation:

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3 years ago
At which angle will the hexagon rotate onto itself? 60° 90° 120° 180°
Irina18 [472]
The hexagon will rotate 60
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Suppose you invest $2000 at a rate of 3.25% continuously, determine the worth of the investment after 10 years.
AysviL [449]

Answer:

$2650

Step-by-step explanation:

= 2000 × 0.0325 × 10 = 650

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8 0
2 years ago
Solve the system of linear equations by substitution.<br><br> x=2y+7<br> 3x−2y=3
Murljashka [212]
<u>The system of equation</u>
First equation
x = 2y + 7
Second equation
3x - 2y = 3

<u>Substitute x with (2y + 7) in the second equation</u>
3x - 2y = 3
3(2y + 7) - 2y = 3

use distributive property
3(2y) + 3(7) - 2y = 3
6y + 21 - 2y = 3

add like terms
6y - 2y + 21 = 3
4y = 3 - 21
4y = -18
  y = -18/4
  y = -4.5

<u>Substitute y with its value, which is -4.5, in the first equation</u>
x = 2y + 7
x = 2(-4.5) + 7
x = -9 + 7
x = -2

<u>The solution is</u>
<u />(x,y) = (-2, -4.5)
6 0
3 years ago
Y(y + 4) - y 2 = 6 is a quadratic equation. True False
ikadub [295]

Answer:

it would be True

y2 +3y - 6=0

8 0
3 years ago
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