What is the simplified form of the expression? 3^3 ×32+12÷4
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3^3=27 27*32=864 864+12=876 876/12=73 73 is your answer
What is 100/45 in a mixed number
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100/45 = 2.2222222
so it is
2 10/45
Where are the x-intercepts for f(x) = −4cos(x − pi over 2) from x = 0 to x = 2π?
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recall that to get the x-intercepts, we set the f(x) = y = 0, thus
How many whole numbers less than 500 can be formed using the digits 1, 2, 4, and 5?
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We do casework by the number of digits in the number.
One-digit numbers: 4 choices for the number.
Two-digit numbers: Four choices for the first digit, four for the second, for a total of 4*4=16 numbers.
Three-digit numbers: Five cannot be the first digit, since if that is the case we will have a number over 500, so we have three choices for the first digit and four for each of the others, for a total of 3*4*4=48 numbers.
This is a total of 4+16+48=68 numbers.
If four times a number plus 3 is 11, what is the number?A. 4 B. 5 C. 16 D. 2
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It is very important to readthe question very minutely before going for solving the problem. Let us assume the unknown number to be = x Then 4x + = 11 4x = 11 -3 4x = 8 x = 8/4 = 2 So we can see from the above deduction that the unknown number is 2. The correct option among all the options given in the question is option "D". I hope the procedure is clear enough for you to understand.
What is the sum of the last four terms of the series 7+9+11+...+21
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7 - 9 = 2 9 - 11 = 2 You should see that the series just increases by +2 therefore you can figure out what the last four terms are and then add them up one of the last terms given is 21