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maxonik [38]
3 years ago
6

Need the answers to these questions please

Mathematics
1 answer:
Katena32 [7]3 years ago
5 0

Answer:

a) p = 88\,cm, b) p = 24\,cm, c) p \approx 25.424\,m, d) p \approx 39.368\,cm

Step-by-step explanation:

a) The perimeter is the sum of the three sides of the internal square and the remaining sides of the external rectangle, that is:

p = 3\times 8\,cm + 2\times 4\,cm +2\times 20\,cm + 16\,cm

p = 88\,cm

b) The perimeter is the sum of the two sides of the internal triangle and the remaining sides of the external rectangle, that is:

p = 2\times 4\,cm + 2\times 6\,cm + 4\,cm

p = 24\,cm

c) The perimeter is the sum of the two sides of the circular section and the three sides of the lower rectangle, that is:

p = \frac{\pi}{2}\times 6\,cm + 8\,cm + 6\,cm + 2\,cm

p \approx 25.424\,m

d) The perimeter is the sum of the external sides of the triangle and rectangle, that is:

p = 10\,cm + 12\,cm + 12\,cm + 12\,cm - \sqrt{(12\,cm)^{2}-(10\,cm)^{2}}

p \approx 39.368\,cm

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3 years ago
-1 3/5 divided by (-2/3) write as mixed number
hichkok12 [17]

Step-by-step explanation:

- 1  \frac{3}{5}  \div  \frac{ - 2}{3}

Convert the mixed numbers above to improper fractions. Thus:

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In order to simplify the fractions above, the division sign changes to multiplication sign thus turn the right hand side of the fraction inversely such that -2/3 to -3/2. Hence,

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3 0
3 years ago
What fractions are equivalent to 2/3
just olya [345]
4/6
10/15
6/9
8/12
Hope these help you!!! =')
4 0
4 years ago
Read 2 more answers
PLEASE HELP ME RIGHT ANSWERS ONLY
Juli2301 [7.4K]

Answer:

$31.63 per hour

Step-by-step explanation:

40 hour weeks × 52 weeks = 2080 hours

65,788/2080= 31.63

6 0
3 years ago
Given that g(x) = 2x + 5 find g(3)
MrRissso [65]
G(3)=2(3)+5
g(3)= 6 + 5
g(3)= 11
your point is (3, 11).
6 0
4 years ago
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