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timofeeve [1]
2 years ago
8

HELP PLEASEE

Mathematics
1 answer:
Inga [223]2 years ago
4 0

Answer:

42.5

Step-by-step explanation:

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Hey guys, I need help with these Scale factor problems! problems are linked in a screenshot below:
AVprozaik [17]

Answer:

  1. A → B: 1/3
  2. correct
  3. A → B: 2/5

Step-by-step explanation:

It is clear from your answer to the second part that you know the A→B scale factor is the reciprocal of the B→A scale factor. Use that fact for the other two parts of the question.

  1. A → B = 1/3; B → A = 3
  2. A → B = 2; B → A = 1/2
  3. A → B = 2/5; B → A = 5/2

__

It is convenient to find a unit length (or the smallest length) on the smaller figure, then see how much that is multiplied by to get the larger figure.

  1. B : A = 1 : 3
  2. A : B = 1 : 2
  3. B : A = 2 : 5

Once you have these ratios, you need to determine what the notation A→B is supposed to mean. Here, we presume it means B/A.

7 0
3 years ago
Keaton wrote the following paragraph proof for the Vertical Angles Theorem: The sum of angle 1 and angle 4 and the sum of angle
Stella [2.4K]
<span>For the Vertical Angle theorem, if a slant line is intersected by a horizontal, the opposite angles must be equal. In here, he stated that the sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees. It means that the sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 by the transitive property of equality. </span>
5 0
3 years ago
Read 2 more answers
212.809 to round to the nearest whole number
Elodia [21]

Answer:

213

I hope this helps!

8 0
3 years ago
can someone please help with my geometry homework?? i haven't been in the class for a year and i'm starting off the second semes
sattari [20]
Ok so for number 5, AB is proportional to BC just like PQ is proportional to QR. AB = 9, BC = 15, PQ = 3, and QR = x. 9/15 = 3/x. Cross Multiply: This gives you - 9x = 45. Divide both sides by 9, and you get x = 5. QR = 5
3 0
2 years ago
Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B1221%20%5Ctimes%201221%7D%20" id="TexFo
densk [106]

Answer:

1221\sqrt{x}

Step-by-step explanation:

1221 x 1221 = 1490841

square root of 1490841 is 1221

8 0
3 years ago
Read 2 more answers
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