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3 years ago

I need help ASAP! Number 1

Mathematics

2 answers:

rodikova [14]3 years ago

3 0

Replace x with and simplify

2x - 10

~Zane

Happy Halloween!

kozerog [31]3 years ago

3 0

Answer:

Replace x

2x - 10

Step-by-step explanation:

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If x= 7 - 4√3 then find the value of (a) (x+1/x) rais to 2 b) x rais 2+1/x rais to 2

ololo11 [35]

The equation x = 7 - 4√3 is a radical expression, and the value of the radical expression is $(x + \frac 1x)^2 = 3650401 -2107560\sqrt 3$

<h3>How to solve the expressions?</h3>

The equation is given as:

x = 7 - 4√3

So, we have:

$(x + \frac 1x)^2 = (7 - 4\sqrt 3 + \frac{1}{7 - 4\sqrt 3})^2$

Take the LCM

$(x + \frac 1x)^2 = (\frac{49 -56\sqrt3 + 48}{7 - 4\sqrt 3})^2$

Evaluate the like terms

$(x + \frac 1x)^2 = (\frac{97 -56\sqrt3 }{7 - 4\sqrt 3})^2$

Rationalize

$(x + \frac 1x)^2 = (\frac{(97 -56\sqrt3)(7 - 4\sqrt 3) }{49 -48})^2$

Evaluate the difference

$(x + \frac 1x)^2 = ((97 -56\sqrt3)(7 - 4\sqrt 3))^2$

Expand

$(x + \frac 1x)^2 = (679 -388\sqrt 3 -392\sqrt 3 + 672)^2$

Evaluate the like terms

$(x + \frac 1x)^2 = (1351 -780\sqrt 3 )^2$

Expand

$(x + \frac 1x)^2 = 1825201 +1825200 -2107560\sqrt 3$

$(x + \frac 1x)^2 = 3650401 -2107560\sqrt 3$

Hence, the value of the radical expression is $(x + \frac 1x)^2 = 3650401 -2107560\sqrt 3$

Read more about radical expressions at:

brainly.com/question/8952483

#SPJ1

4 0

2 years ago

What is the mixed number form of 44/40

crimeas [40]

Answer:

1 1/10

Step-by-step explanation:

44/40

How many times can 40 fit evenly into 44? 1

So 44 - 40 (the 1) = 4

There are 4 remaining which will be the numerator.

The denominator stays the same: 40.

Your answer should look like: 1 4/40

Now simplify: 1 1/10

4 0

4 years ago

Read 2 more answers

Suppose you are going to graph the data in the table.

Svetradugi [14.3K]

Answer:

The correct representation of data on x-axis and y-axis is:

x-axis: minutes in increments of 5; y-axis: temperature in increments of 5

Step-by-step explanation:

The minutes will be plotted along the x-axis with increment of 5 minutes because the minutes represents here the independent variable

and the temperature will be plotted along the y-axis with the increment of 5 degrees Celsius because the temperature denotes the dependent variable.

5 0

3 years ago

Given h(x) = -x + 2, solve for x when h(x) = -3.<br><br> ;-;

Strike441 [17]

-3 = -x + 2
-2 -2
-5 = -x
/-1 /-1
5 = x

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3 years ago

Write an absolute value equation that has 3 and 11 as its solution

worty [1.4K]

Answer:

|(x-3)(x-11)|=0

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