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2 years ago

If X is a positive real number and x^2=2 then x^3=

Mathematics

2 answers:

RoseWind [281]2 years ago

7 0

$x^{2} =2\\x=\sqrt{2} \\x^{3} =(2)^{\frac{1}{2}*3 } \\=2\sqrt{2}$

klio [65]2 years ago

6 0

Answer:

Step-by-step explanation:

if X is a positive real number and x^2=2 then x^3=

x² = 2

x = ±√2

(±√2)³ = 2.828427

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If 75 is added to a number, the result is 39 less than three times the number.find the number

Luba_88 [7]

First, we would set the number to x.

Then, we turn the words into an equation.

x+75 = 3x-39

Isolate the x.

-2x = -114

So...

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3 years ago

The equation 9t = 27.99 models a constant rate situation.

jeka94

The value of 5t will be 15.55

Step-by-step explanation:

Given equation is;

9t = 27.99

As it is stated that the relationship is constant, therefore, we will find the value of t by dividing 27.99 by 9

$t=\frac{27.99}{9}\\\\t=3.11$

Now, we will put t=3.11 to find 5t.

$5t=5(3.11)\\5t=15.55$

The value of 5t will be 15.55

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3 years ago

Write a direct variation equation that relates x

8_murik_8 [283]

Answer:

y/x= -8/-2= 4 => when y=32 => 32/x=4 => x=8

4 0

2 years ago

4 x ((-4)= (-2) - (-3) + (-6))

sergij07 [2.7K]

Answer:

x=5/16

Step-by-step explanation:

Let's solve your equation step-by-step.

4x(−4)=−2−(−3)−6

Step 1: Simplify both sides of the equation.

4x(−4)=−2−(−3)−6

−16x=−2+3+−6

−16x=(−2+3+−6)(Combine Like Terms)

−16x=−5

Step 2: Divide both sides by -16.

−16x

−16

=−5/−16

x=5/16

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2 years ago

Find the area of the figure.<br><br> answer choices:<br> 31 ft², 80 ft², 40 ft², 60 ft²

IrinaVladis [17]

Answer:

60 ft²

Step-by-step explanation:

You can divide the figure into 2 parts.

First, solve for the rectangle: Area of a rectangle = b*h = 4ft x 10ft = 40ft²

Then, solve for the triangle:

Height = 10ft - 5ft = 5ft

Base = 12ft - 4ft = 8ft

Area of a triangle = (b*h)/2 = (5ft x 8ft)/2 = 20ft²

Just add them together: 20ft² + 40ft² = 60ft²

3 0

2 years ago

If X is a positive real number and x^2=2 then x^3=​

If X is a positive real number and x^2=2 then x^3=