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4 years ago

Are 2.7, 3.6, and 4.5 a pythagorean triple

1 answer:

7 0

They are because 2.7 squared + 3.6 squared = 4.5 squared (=20.25)

Pythagoras Theorem is that a squared + b squared = c squared

So the 2 smallest numbers squared will equal the larger one squared if it is a pythagoreom triple

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A family bought an iPad, a pair of AirPods, and an Applw Watch for $920. The Apple watch costs as much as the AirPods and the iP

lapo4ka [179]

Answer:

the apple watch costs $460

Step-by-step explanation:

3 0

3 years ago

For a cube whole side lenght is 4 in , the expression 4 to the 3 could represent

S_A_V [24]

Answer:

Step-by-step explanation:

The volume of a cube.

The formula is V = s^3 where is the the "whole side length" of the cube. The cube requires three dimensions be multiplied together to find its volume.

That's why the formula is written as V = s^3. It means that V = s * s * s which is three sides multiplied together. They also need to be at right angles to each other.

4 0

3 years ago

Which expressions are equivalent to (2^5)^-2

Aleonysh [2.5K]

Answer: Choice B) 2^(-10) and 1/1024

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Explanation:

We'll use these two rules
Rule 1: (a^b)^c = a^(b*c)
Rule 2: a^(-b) = 1/(a^b)

Using rule 1 above, we can say
(2^5)^(-2) = 2^(5*(-2)) = 2^(-10)
So 2^(-10) is one of the answers

Now use rule 2 to convert 2^(-10) into...
2^(-10) = 1/(2^10) = 1/1024
so 1/1024 is the other answer

6 0

3 years ago

What is the equation of a line that has a slope of -2/3 and a x-intercept of -3?

garri49 [273]

For this case we have that, by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cutting point with the y axis

We have, according to the statement data that:

$m = - \frac {2} {3}$

So, the equation is of the form:

$y = - \frac {2} {3} x + b$

We also have that the line intersects the "x" axis at -3, that is, the line passes through the point $(x, y): (- 3,0)$

We substitute to find "b":

$0 = -\frac {2} {3} (- 3) + b\\0 = -2 + b\\b = 2$

Finally, the equation is of the form:

$y = - \frac {2} {3} x + 2$

Answer:

$y = - \frac {2} {3} x + 2$

6 0

3 years ago

Y=square root of 6x-5/4x please answer before Wednesday

Wewaii [24]

Answer:

x = 5/6-4y^2

Step-by-step explanation:

^ = to the power of and * = times

y = square root of 6x-5/4x

(times by the square root on either side, sorry I don't know how to word it)

y^2=6x-5/4x

(times by 4x either side)

4xy^2= 6x-5

(+5 either side)

4xy^2+5=6x

(-4xy^2 either side)

5=6x-4xy^2

(factorize)

5=x(6-4y^2)

(divide by (6-4y^2))

5/6-4y^2 = x or x = 5/6-4y^2

Tell me if this is incorrect.

5 0

3 years ago