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AleksandrR [38]
3 years ago
11

+\sqrt{63" align="absmiddle" class="latex-formula"> pls show work
Mathematics
1 answer:
mezya [45]3 years ago
8 0

Answer:7√3 + 3√7

Step-by-step explanation:

7√3 + √63

=> 7√3 + √(7×9)

=> 7√3 + (√7 × √9)

=> 7√3 + 3√7

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Explain please and tell me how to do it ?
SCORPION-xisa [38]

The trick to calculating the area here is to subdivide the diagram into smaller parts. For example, there's a 3 cm-by-3cm square. The rectangle is 4 cm by 8 cm.. The triangle has a base of 5 cm and a height of 3 cm.

Total area = area of square + area of rectangle + area of triangle

= 9 cm^2 + 32 cm^2 + (1/2)(5 cm)(3 cm)

= (9 + 32 + 7.5) cm^2

= 48.5 cm^2 (total area of figure)

8 0
3 years ago
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2 years ago
A bag contains 30 lottery balls numbered 1-30 a ball is selected replaced then another is drawn find each probability
iogann1982 [59]
#1) 5/20
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Explanation
For #1:
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For #2:
There is 1 7 out of 30; then there are 14 numbers greater than 16 out of 30:
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For #3:
There are 6 multiples of 5 out of 30; then there are 9 prime numbers out of 30:
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7 0
3 years ago
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The equation of a circle is x2 + y2 = 56.25. Find the radius of the circle?
Lady bird [3.3K]

Answer:

r = 7.5

Step-by-step explanation:

Circle equation: (x - h)^2 + (y - k)^2 = r^2

Since we are already give <em>r²</em>, we simply just take the square root of 56.25, and we should get 7.5 as our final answer!

7 0
3 years ago
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