The sum of the angles in a triangle is 180°, so the angles do form a triangle. Since two of the three angles are congruent, the triangle is an isosceles triangle. An infinite number of isosceles triangles exist with different side lengths. Therefore, more than one triangle<span> exists with the given angle measures.</span>
The number of copper atoms in a penny of copper is 6.38×10²² atoms.
Given that,
A penny contains 0.106 mol of copper, how many atoms of copper are in a penny is to be determined.
<h3>What is simplification?</h3>
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Atom in 1 mole = 6.022×10²³ atom / mole
Number of copper atoms = 0.106 × 6.022×10²³
Number of copper atoms = 6.38×10²² atoms
Thus, the number of copper atoms in a penny of copper is 6.38×10²² atoms.
Learn more about simplification here: brainly.com/question/12501526
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Acute is when all of the angles are smaller than 40, obtuse is when all the angles are bigger than 40, and right triangles are when there's one right angle.
Answer:
11) is a
12) all answers are incorrect just put b
Step-by-step explanation:
<span>2(4x-6)+3(4-x)
= 8x - 12 + 12 - 3x
= 5x </span>← answer