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3 years ago

Which of The Following Equations are true for the number 9 Select all the Apply

Mathematics

2 answers:

Vika [28.1K]3 years ago

5 0

Answer:

C and D

Step-by-step explanation:

C. 7 ÷ 9 = 7/9

D. 9 ÷ 1/9 = 9 x 9/1 = 81

Salsk061 [2.6K]3 years ago

3 0

Answer: C and D

and who reported this answer its a answer i/d/k why your messing with me leave me alone its not like he is gonna get the points back from you deleting my answer

and btw i dont want any real credit

for this im just geting ponits you can 1 star me all you want

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Dmitry_Shevchenko [17]

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Each person will reserve about $83.

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Find the value of x which satisfies the following equation. log2(x−1)+log2(x+5)=4

weqwewe [10]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \: x = 3$

____________________________________

$\large \tt Solution \: :$

$\qquad \tt \rightarrow \: log_{2}(x - 1) log_{2}(x + 5) = 4$

$\qquad \tt \rightarrow \: log_{2} \{(x - 1)(x + 5) \} = 4$

[ log (x) + log (y) = log (xy) ]

$\qquad \tt \rightarrow \: ( x - 1)(x + 5) = {2}^{4}$

$\qquad \tt \rightarrow \: {x}^{2} + 5x - x - 5 = 16$

$\qquad \tt \rightarrow \: {x}^{2} + 4x - 5 - 16 = 0$

$\qquad \tt \rightarrow \: {x}^{2} + 4x -21 = 0$

$\qquad \tt \rightarrow \: {x}^{2} + 7x - 3x - 21 = 0$

$\qquad \tt \rightarrow \: x(x + 7) - 3(x + 7) = 0$

$\qquad \tt \rightarrow \: (x + 7)(x - 3) = 0$

$\qquad \tt \rightarrow \: x = - 7 \: \: or \: \: x = 3$

The only possible value of x is 3, since we can't operate logarithm with a negative integer in it.

$\qquad \tt \rightarrow \: x = 3$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

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2 years ago

What is the answer? 12 x 4 1/2 =?

TiliK225 [7]

Answer:

Step-by-step explanation:

What I would do is multiply 12x4 first to get 48, then after I'd multiply 12x1/2 to get 6 then I'd add them together to get 54.

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