She improved about 4.3 words per min each week
Answer:
19 and 2
Step-by-step explanation:
Let x represent the first number and y represents second number
x + y = 19
x - y = 17 add two equations up
2x = 36 divide both sides by 2
x = 19 and since the difference is 17 the other number is 2
They both have an area and are both 2d shapes and just shapes in general
The correct answer is: [A]: " 384 in² " .
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Explanation:
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The formula for the surface area of a cube is:
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→ A = 6a² ;
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A = surface area of the cube— for which we shall solve ;
(in "square units" ; or, " in² " ; in our case) ;
a = side length = " 8 in " (given);
→ Note: A cube has all equal side lengths.
→ The "6" in the formula accounts for "6 sides" of a cube.
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→ To solve for the surface area of the cube; plug in our known value(s);
& solve; as follows:
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→ A = 6 a² ;
= 6 * (8 in)² ;
= 6 * 8² * in² ;
= 6 * 8 * 8 * in² ;
= 48 * 8 * in² ;
= 384 in² ;
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The answer is: " 384 in² " ;
→ which is: Answer choice: [A]: " 384 in² " .
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I believe the answer is A "If a triangle is equilateral, then it has three congruent angles". Hope this helps!
