3 years ago

Please help I have been stuck for a while

Mathematics

1 answer:

elixir [45]3 years ago

7 0

Answer:

$3\sqrt{2}$

Step-by-step explanation:

3^2+3^2=18

root 18 = 3root2

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Can someone help me out

vichka [17]

Answer: LAST OPTION.

Step-by-step explanation:

The Pythagorean Theorem states the following relationship between the three sides of a triangle that has an angle of 90 degrees, known as "Right triangle":

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

Where "a"is the hypotenuse and "b" and "c" are the legs of the right triangle.

If the triangle ABC is a right triangle then AB must be equal to $BC^2+AC^2$ , then, you need to substitute the values into $a^2=b^2+c^2$ to check this:

$12^2=5^2+10^2\\144\neq 125$

Then the triangle ABC is not a right triangle.

Therefore, the statement that justifies why this triangle is not a right triangle is:

$5^2+10^2\neq 12^2$

5 0

3 years ago

What is the common ratio for this geometric sequence?

Anastasy [175]

Answer:

Step-by-step explanation:

$\text{The common ratio of a geometric sequence}\ a_n:\\\\r=\dfrac{a_{n+1}}{a_n}\\\\\text{We divide next term by the previous one.}\\\\r=\dfrac{9}{27}=\dfrac{9:9}{27:9}=\dfrac{1}{3}\\\\r=\dfrac{3}{9}=\dfrac{3:3}{9:3}=\dfrac{1}{3}\\\\r=\dfrac{1}{3}\\\vdots$