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Dmitry_Shevchenko [17]
3 years ago
15

Radius of a circle is increased by 50 %. find the % increase in circumference of the circle?

Mathematics
1 answer:
jeyben [28]3 years ago
5 0
The circumference is merely increased by 50%. The formula for a circle (which I assume you know) is 2*pi*r. Work out this value, then multiply it by 1.5. You get the same answer as multiplying 2*pi*(r*1.5). Just fyi (if you didn't know), multiplying something by 1.5 increases it by 50%, multiplying something by 1.12 increases something by 12% etc.
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Lorie is using long division to find the quotient of 13 + 6r2 + 5 and 12 + 1 – 1, as shown.
yawa3891 [41]

Answer: she combined the constants incorrectly in the last step.... i just got it right on the test

6 0
3 years ago
Read 2 more answers
(25x)°=(22×+9)° whas the answer
goldfiish [28.3K]

Answer:

x = 3  

Step-by-step explanation:

(25x)° = (22x + 9)°     Divide each side by 1°

  25x = 22x + 9          Subtract 22x from each side

    3x = 9                       Divide each side by 3

      x = 3

<em>Check: </em>

(25× 3)° = (22×3 + 9)°

      75° = (66 + 9)°

      75° = 75°

3 0
3 years ago
A man is hiking in Death Valley. He starts at an elevation of 65 feet above sea level and descends to an elevation 30 feet below
kati45 [8]

Answer:

95 feet

Step-by-step explanation:

In Death Valley, hiking man starts at 65 feet above sea level and then descends 30 feet below sea level. The man needs 65 feed to reach sea level, then from there he travels 30 feet more.

Thus he travels the sum of this distances, i.e 65+30 = 95 feet

5 0
3 years ago
Find the distance between the pair of points.<br> (-7,4) and (2,-5)
frez [133]

Answer:

length =  \sqrt{ {(x _{2}  - x _{1} ) {}^{2}  + (y _{2} - y _{1} )}^{2} }  \\  =  \sqrt{ {(2 - ( - 7))}^{2} +  {( - 5 - 4)}^{2}  }  \\  =  \sqrt{ {9}^{2}  +  {( - 9)}^{2} }  \\  =  \sqrt{81 + 81}  \\  \sqrt{162}  \\  = 12.7 \: units

5 0
2 years ago
Please help with this problem! :)
goldfiish [28.3K]

Answer:

∠STP = 90°

Step-by-step explanation:

The diagonals of a square are perpendicular bisectors of each other, hence

∠STP = 90°

5 0
3 years ago
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