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3 years ago

In this order only, and only using -+×÷, solve this problem 3 7 12 2=85

Mathematics

1 answer:

Sveta_85 [38]3 years ago

3 0

Answer: 85

3+7x12-2=85

7x12=84

3+84=87

87-2=85

hope this helps

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What is the answer 76% of 200 equal

katovenus [111]

76% of 200<span> = </span><span>152</span>76/100 * 200
<span>
= 76*200/ 100 = 152</span>

5 0

3 years ago

Read 2 more answers

If A+B+C=<img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula"

seraphim [82]

Answer:

$a + b + c = \pi \\ = > c= \pi - a - b \\ < = > \tan(c) = \tan(\pi - a - b) = -\tan(a + b)$

Step-by-step explanation:

we have:

$\tan(a) + \tan(b) + \tan(c) \\ = \tan(a) + \tan(b) - \tan(a + b) \\ = \tan( a) + \tan(b) - \frac{ \tan(a) + \tan(b) }{1 - \tan(a) \tan(b) } \\ = \frac{ ( \tan(a) + \tan(b) ) \tan(a) \tan(b) }{ \tan(a) \tan(b) - 1 } (1)$

we also have:

$\tan(a) \tan(b) \tan(c) \\ = - \tan(a) \tan(b) \tan(a + b) \\ = \frac{ -(\tan( a ) + \tan(b) ) \tan(a) \tan(b) }{1 - \tan(a) \tan(b) } \\ = \frac{( \tan(a) + \tan(b)) \tan(a) \tan(b) }{ \tan(a) \tan(b) - 1 } (2)$

from (1)(2) => proven

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2 years ago

Nine less than a number is no more than 8 and is no less than 3

frozen [14]

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So the number is between 1 and 6, notation 1 < x < 6

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3 years ago

What formula should be entered in A3 to compute A1 times B1?

oksano4ka [1.4K]

The formula that should be entered in A3 is = A1 * B1

<h3>How to determine the formula?</h3>

The question implies that:

A3 = A1 times B1

In mathematics, the term "times" means *

So, we have:

A3 = A1 * B1

Remove the variable A3

= A1 * B1

Hence, the formula that should be entered in A3 is = A1 * B1

In this order only, and only using -+×÷, solve this problem 3 7 12 2=85​

In this order only, and only using -+×÷, solve this problem 3 7 12 2=85