Answer:
Sum of digits = 9*6+8+4+1 = 67
Step-by-step explanation:
29999999^2 = 899999940000001
To find the sum of the digits of 29999999^2, calculate the square of 29999999, and then add up the individual digits of the result. Therefore, the sum of the digits of 29999999^2 is 77.
To find the sum of the digits of 29999999^2, we first need to calculate the square of 29999999. This can be done by multiplying 29999999 by itself. After calculating this product, we can add up the individual digits of the result to find the sum.
Calculating 29999999^2 results in a large number: 899999940000001. To find the sum of its digits, we can break down the number: 8 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 4 + 0 + 0 + 0 + 0 + 0 + 0 + 1 = 77.
Therefore, the sum of the digits of 29999999^2 is 77.
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Luisa mows lawns during the summer. She charges $15 if she cuts the grass but charges $5 more if she also trims the grass. Last week she trimmed 5 more yards than she cut. If she made $415 last week, how many yards did she trim?
Answer:
315÷35=9
Step-by-step explanation:
5 extra yards had given her an extra $100, so the yards she cut, plus those she trimmed, had given her $315. To cut one and trim another one she takes $35. This means 9 yards were cut and 14 trimmed. (315÷35=9)
Answer:
x = 2
Step-by-step explanation:
x is the height of these triangles. Thus, we know all three sides of either triangle: height = x; base = 8/2, or 4; and hypotenuse √20.
Using the Pythagorean Theorem, we find x as follows:
x^2 + 4^2 = 20, or
x^2 = 4. Then x must be 2.
x = 2
A.
whole numbers
B.
natural numbers
C.
negative integers
D.
integers