The area of a triangle is the height of the triangle x base x 1/2 (0.5), which applied to the question, is 6 x 12 x 1/2. The answer is 36 sq. units.
Answer: 40
Step-by-step explanation:
Hi. When water seeps into the cracks in rocks it expands as it freezes. Once it thaws, it seeps yet again into additional cracks in the rock. Over time, this causes large chunks of the rock to loosen and subsequently fall off.
Hope this helps.
Take care,
Diana
Answer:
1. C=10.6
2. C=11.2
4. C=23.4
5. C=38.4
Step-by-step explanation:
You can find the answer to these by doing the Pythagorean theorem.
a^2 + b^2 = c^2
Answer:
2 (real) solutions.
Step-by-step explanation:
A quadratic always has two solutions, whether they are real or complex.
Sometimes the solution is complex, involving complex numbers (2 complex), sometimes they are real and distinct (2 real), and sometimes they are real and coincident (still two real, but they are the same).
In the case of
x^2+3x = 3, or
x² + 3x -3 = 0
we apply the quadratic formula to get
x = (-3 +/- sqrt(3^2+4(1)(3))/2
to give the two solutions
{(sqrt(21)-3)/2, -(sqrt(21)+3)/2,}
both of which are real.