3 years ago

Rationalize the denominator please

1 answer:

7 0

There is a video on khanacademy, search "rationalize the denominator." Then instead of getting the answer you will learn how to do it and be able to do it on other problems in the future.

You might be interested in

The perimeter of a rectangular flower garden is 80 m and its area is 375 m2. Find the length of the garden.

Umnica [9.8K]

The answer is 25m.
Height = 15
Length = 25
Height+lengthx2= 80(perimeter)
Height x length=375m2(area)

5 0

3 years ago

A metronome is a device that ticks at adjustable intervals to help keep time when playing music. The metronome on Ryan’s piano h

krek1111 [17]

Answer:

$540cm^{3}$

Step-by-step explanation:

7 0

2 years ago

Find the value of x which satisfies the following equation.<br> 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 ❞

4 0

1 year ago

Simplify this please

aliina [53]

Answer:

2a +5

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Which answers are examples of the Law of Detachment?

Molodets [167]

Answer:

The answer would be A and D, I just took the quiz

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers