A, C, E (NOT B or D)
20 : 2.55 is not proportional to the rest.
For D, Y/X is not the same as X/Y. It would be a different proposition
Answer:
Carl statement is correct
Step-by-step explanation:
Absolute value is the value of the number without considering the sign of the number.
Absolute value of two integer can be same
example absolute value of -3 and 3
absolute value of |-3| = 3
absolute value of | 3 | = 3
hence, two integer have same absolute value.
so, Carl statement is correct about the absolute value.
Answer:
33 ⅓%
Step-by-step explanation:
Percent means out of 100, so write a proportion:
1 / 3 = x / 100
Solve for x by multiplying both sides by 100:
x = 100 / 3
Reduce:
x = 33 ⅓
The percent of questions he got right is 33 ⅓%.
Answer:C
Step-by-step explanation:
Answer:
Real Zeros x = ±4
Complex zeros : x = ±3 i
Step-by-step explanation:
<u><em>Explanation</em></u>
f(x) = x⁴ + 5x² – 36
f(x) = x⁴ + 5x² – 36
= (x²)² + 9 x² - 4 x² - 36
= x² (x² + 9) - 4( x² +9)
= (x² -4 ) (x² +9)
f(x) = x⁴ + 5x² – 36 = (x² -4 ) (x² +9)
(x² -4 ) (x² +9) = 0
⇒ x² -4 = 0 and x² +9 =0
⇒ x² -2² = 0 and x² = -9
⇒ x = ±4 and x = ±3 i
Real Zeros x = ±4
Complex zeros : x = ±3 i