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Cloud [144]
3 years ago
10

What is the least common denominator for 2/5 + 3/7

Mathematics
2 answers:
-BARSIC- [3]3 years ago
6 0

Answer:

35

Step-by-step explanation:

SIZIF [17.4K]3 years ago
4 0

Answer:

Step-by-step explanation:

both are prime. so multiply each other to find the common denominator. 5x7 is 35. 10/35 plus 21/35 is 31/35 which cannot be reduced any further so yes

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
prohojiy [21]

Answer:

2.25

Step-by-step explanation:

(6x^{-2})^2(0.5x)^4\\\\=(6^2(x^{-2})^{2})(0.5^4x^4)\ \ \ \ \ \ \ \ \ \ \ \ \ as\ (ab)^m=a^mb^m\\\\=36\times 0.5^4((x^{-2})^2x^4)\ \ \ \ \ \ \ \ \ \ as\ multiplication\ is\ associative\ a(bc)=(ab)c\\\\=36\times 0.0625(x^{-4}x^4)\ \ \ \ \ \ \ \ \ \ \ as\ (x^m)^n=x^{mn}\\\\=(36\times 0.0625)(x^{-4+4})\ \ \ \ \ \ \ \ \ \ \ as\ x^mx^n=x^{m+n}\\\\=2.25x^0\\\\=2.25\ \ \ \ \ \ \ \ \ \ \ \ as\ x^0=1\\\\(6x^{-2})^2(0.5x)^4=2.25

7 0
2 years ago
Sayyida has a circular garden of radius 21m. She ran round the garden twice. what distance did she cover?​
yawa3891 [41]

answer

C = 263.76 m

Step-by-step explanation:

C = 2×pi×r

C = 2×3.14×21

C = 131.88 m

For 2 rounds,

C = 131.88 x 2

C = 263.76 m

7 0
2 years ago
WILL GIVE BRAILNLIESTThe oblique pyramid has a square base. An oblique pyramid has a square base with a base edge length of 2 ce
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Answer:

6 cm^3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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