Answer:
x=4
Step-by-step explanation:
7-2x=2(x-4)-1
7-2x=2x-8-1
7-2x=2x-9
7+9=2x+2x
16=4x
x=4
Answer:
See below.
Step-by-step explanation:
The square root of a number is a number than when multiplied by itself, you get the original number.
For example, the square root of 4 is 2 since 2 * 2 = 4, but the square root of 4 is also -2 since (-2) * (-2) = 4. Since the product of 2 negative numbers is positive, and the product of two positive numbers is also positive, each positive integer has two square roots, one positive and one negative.
The cubic root of a number is a number that when you cube you get the original number. To cube a number, you must find the product of 3 equal numbers. For example, the cubic root of 8 is 2 since 2 * 2 * 2 = 8. The cubic root of 8 cannot be -2 since (-2) * (-2) * (-2) = -8, not 8. When you multiply 3 positive numbers together, the product is positive. When you multiply three negative numbers together, the product is negative. Because of this, a positive number has a positive cubic root, and a negative number has a negative cubic root. A positive integer has only one cubic root.
-7.8
The rest can be solved as rational. Negative numbers are not rational.
Answer:17.78
Step-by-step explanation:
there are 2.54 centimeters in an inch. simply multiply 2.54 by 7 to get 17.78
9514 1404 393
Answer:
1. 4463
2. no
Step-by-step explanation:
1. Put the value of x into the equation and do the arithmetic.
f(4) = 5000(0.972^4) ≈ 5000·0.8926168 ≈ 4463.08
There will be about 4463 lemmings in 4 years.
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2. An exponential function has the variable in the exponent. When the variable is the base of a term that has an integer constant exponent, we call it a polynomial function.
The function is NOT an exponential function.
