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Aleks04 [339]
3 years ago
6

Which expression can be simplified as

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
7 0
The answer is (n^-3)^6
The fourth option
Ymorist [56]3 years ago
5 0
Step by step:
The answer is (n^-3)^6
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78 : 120 :: ? : 66<br>please give answer with explanation<br>​
yawa3891 [41]

Step-by-step explanation:

<u>Method</u><u> </u><u>1</u><u>:</u>

Given that:

78 : 120 :: ? : 66

Here,

Product of extremes = 78 and 66

Product of means = 120 and ?

so,

(78*66) = (120 * ?)

⇛5148 = 120 * ?

⇛5148 = 120?

⇛120? = 5148

Shift the number 120 from LHS to RHS, changing it's sign.

⇛? = 5148/120

Therefore, (?) = 42.9

<u>Method</u><u> </u><u>2</u><u>:</u>

78 : 120 :: ? : 66

Convert each ratio into fraction.

⇛78/120 = ?/66

On applying cross multiplication then

since, (a/b) = (c/d) ⇛cd = ad

Where, a = 78, b = 120, c = ? and d = 66

Now,

⇛(120)? = (78)66

⇛120? = 5148

⇛(?) = 5148/120

Therefore, (?) = 42.9

<u>Ans</u><u>w</u><u>er:</u> Hence the value of (?) for the given problem is 42.9.

<u>Verification</u><u>:</u>

Check whether the value of (?) is true or false.

78 : 120 :: ? : 66

Substitute the value of (?).

⇛78:120 = 42.9:66

Product of extremes should be equal to product of means.

Product of extremes:- 78*66 = 5148

Product of means:- 120*42.9 = 5148

⇛5148 = 5148

LHS = RHS

Hence, verified.

4 0
2 years ago
Please help!! Will give brainliest
Angelina_Jolie [31]

Answer:

b) 16 rt 2

Step-by-step explanation:

using the 45-45-90 triangle trick,

let x=16

then BC is x rt 2, or 16 rt 2

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3 years ago
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Answer:

1/2

Step-by-step explanation:

3/4 × 2/3

3 × 2/4 × 3

6/12 = 1/2

Thus, 3/4 × 2/3 = 1/2

-TheUnknownScientist

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Sebastian has 12 more trophies than Megan. Megan has t trophies. How many trophies does Sebastian have? Write your answer as an
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Answer:

t + 12 = s

Step-by-step explanation:

t (Megan's trophies) + 12 = s (Sebastian's trophies)

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