| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.48 |
| Score | 0% | 70% |
What is (z4)4?
| z16 | |
| z0 | |
| z8 | |
| 4z4 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(z4)4a(b + c) = ab + ac defines which of the following?
commutative property for multiplication |
|
distributive property for division |
|
commutative property for division |
|
distributive property for multiplication |
The distributive property for multiplication helps in solving expressions like a(b + c). It specifies that the result of multiplying one number by the sum or difference of two numbers can be obtained by multiplying each number individually and then totaling the results: a(b + c) = ab + ac. For example, 4(10-5) = (4 x 10) - (4 x 5) = 40 - 20 = 20.
What is \( \frac{-1y^5}{6y^4} \)?
| -\(\frac{1}{6}\)y | |
| -6y9 | |
| -\(\frac{1}{6}\)y\(\frac{4}{5}\) | |
| -6y |
To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:
\( \frac{-y^5}{6y^4} \)
\( \frac{-1}{6} \) y(5 - 4)
-\(\frac{1}{6}\)y
What is the next number in this sequence: 1, 5, 9, 13, 17, __________ ?
| 13 | |
| 20 | |
| 21 | |
| 23 |
The equation for this sequence is:
an = an-1 + 4
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 4
a6 = 17 + 4
a6 = 21
Which of the following statements about exponents is false?
b1 = b |
|
b1 = 1 |
|
all of these are false |
|
b0 = 1 |
A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).