Is it true or false that 7 over 2 a irrational number ?

Mathematics

1 answer:

Svet_ta [14]3 years ago

4 0

No it is not due to 7 over 2 equals 3.5 making it rational.

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What Is The Length Of Side BD?

emmainna [20.7K]

This is a rectangle, meaning that all angles are right angles and all sides opposite to one another have equal length.

Since the length of CD is 24, the length of AB must also be 24.
Angle B is a right angle because this is a rectangle.

See anything? I'll you a hint. We have a right triangle with only one missing value.

What do we use to solve for missing lengths in a right triangle? The Pythagorean theorem, of course!

$a^2+b^2=c^2$

The length of c (the hypotenuse) is 26.
The length of a (one leg) is 24.
The length of b is unknown and we want to find it.

$24^2+b^2=26^2$

$576+b^2=676$

Subtract 576 by both sides.

$b^2=100$

Take square root of both sides.

$b=10$

The length of the missing leg is 10, meaning that the length of BD is 10.

This is what you should be needing. Enjoy!

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3 years ago

Complete the pairs of A's. Ε AECF SA ACG EAD CDA Please help me

marysya [2.9K]

Answer:

Pretty sure it would be EAD

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3 years ago

Read 2 more answers

ONLY ANSWER IF YOU KNOW IT PLS ILL GIVE THE CORRECT BRAINLIEST!

Bas_tet [7]

Answer:

y=5

Step-by-step explanation

just sub in for x

Y=10-5

7 0

3 years ago

Can someone explain the formula for the area of a pentagon, and the formula for the length of an arc of a portion of a circle? P

RSB [31]

So a pentagon is constructed by five identical triangles, that's why you can find the area of one triangle and multiply it with 5:
A_pentagon=A_triangle*5
To find the area of a triangle you must use tangens.
You can watch this for more on that on youtube.

For the length of an arc or a portion of a circle you can find it using:
arc lenght = 2π*r(A/360), where A=angle.
So if you know radians, then 2π is a whole circle. And to calculate for the specific circle you have to use the radius. That's why you multiply with radius, which is the only difference between any two different circles. you then multiply with the part of the circle that you want to find the lenght for, which is A/360 (because there are 360° in a circle)

I hope that helped.

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2 years ago

Fin the product of -3+1i and its conjugate

neonofarm [45]

If u are using i as a variable the answer would be i= 3.

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3 years ago