Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with intercepts (±2, 0) and (0, ±5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
Mathematics
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Factor the expression completely, if possible.z2 - 6z + 9
A. (z - 3)2 B. (z - 3)(z + 3) C. (z + 3)2 D. (z + 9)(z + 1)
Mathematics
Write the percent as a fraction or mixed number.1
%
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
3x + 5 = 9x- 1
A. 
B. 
C. 
D. 
Mathematics
By using a graphing utility to complete the following table. Round your answer to four decimal places.
x
0.2
0.4
0.6
0.8
1
1.2
1.4
y1
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---
---
---
---
---
y2
---
---
---
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---
---
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A. ?
| x | 0.2 | 0.4 | 0.6 | 0.8 | 1 | 1.2 | 1.4 |
| y1 | - 0.1987 | 0.3894 | 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
| y2 | - 0.1987 | 0.3894 | 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
B. ?
| x | 0.2 | 0.4 | 0.6 | 0.8 | 1 | 1.2 | 1.4 |
| y1 | 0.1987 | - 0.3894 | 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
| y2 | 0.1987 | - 0.3894 | 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
C. ?
| x | 0.2 | 0.4 | 0.6 | 0.8 | 1 | 1.2 | 1.4 |
| y1 | 0.1987 | 0.3894 | - 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
| y2 | 0.1987 | 0.3894 | - 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
D. ?
| x | 0.2 | 0.4 | 0.6 | 0.8 | 1 | 1.2 | 1.4 |
| y1 | 0.1987 | 0.3894 | 0.5646 | - 0.7174 | 0.8415 | 0.9320 | 0.9854 |
| y2 | 0.1987 | 0.3894 | 0.5646 | - 0.7174 | 0.8415 | 0.9320 | 0.9854 |
E.
| x | 0.2 | 0.4 | 0.6 | 0.8 | 0.8415 | 0.9320 | 0.9854 |
| y1 | 0.1987 | 0.3894 | 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
| y2 | 0.1987 | 0.3894 | 0.5646 | 0.7174 | 0.8415 | 0.9320 | 0.9854 |
Mathematics