9th
-
12th
grade

Mathematics

69%

accuracy

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Billy Shelton

5 years

Mathematics

9th -

12thgrade

Complex Numbers

Billy Shelton

60
plays

12 questions

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1. Multiple Choice
30 seconds
1 pt
Simplify

$\sqrt{99}$
$3\sqrt{33}$
4 $\sqrt{11}$
$3\sqrt{11}$
2 $\sqrt{11}$
2. Multiple Choice
30 seconds
1 pt
Simplify

$\sqrt{\frac{27}{49}}$
$\frac{2\sqrt{3}}{7}$
$\frac{3\sqrt{3}}{7}$
$\frac{3}{7}$
$\frac{\sqrt{27}}{7}$
3. Multiple Choice
30 seconds
1 pt
Simplify

$\sqrt{52x^3y^5}$
$2xy^2\sqrt{13x}$
$2xy\sqrt{13x}$
2 $\sqrt{26x}$
$2x\sqrt{13y}$
4. Multiple Choice
30 seconds
1 pt
Simplify

$\sqrt{-108x^7}$
$6x^3i\sqrt{x\cdot3}$
$3x^2i\sqrt{3x}$
$2xi\sqrt{x}$
$108\sqrt{x^5}$
5. Multiple Choice
30 seconds
1 pt
$\sqrt{-81x^6}$
- $3xi\sqrt{9}$
- $9xi\sqrt{x}$
$9x^3i$
$-81x^3i$
6. Multiple Choice
30 seconds
1 pt
Simplify

$\sqrt{-23}\cdot\sqrt{-46}$
$i23\sqrt{2}$
$-23\sqrt{2}$
$-46\sqrt{2}$
$-23i\sqrt{2}$
7. Multiple Choice
30 seconds
1 pt
Simplify

$\left(-3+5i\right)+\left(18-7i\right)$
$15-2i$
$15+2i$
$10-2i$
$10+2i$
8. Multiple Choice
30 seconds
1 pt
Simplify
$\left(10-4i\right)-\left(7+3i\right)$
$3-7i$
$3+7i$
$-3+7i$
$-3-7i$
9. Multiple Choice
30 seconds
1 pt
Simplify
$\left(7-6i\right)\left(2-3i\right)$
$-4-33i$
$-4+33i$
$4-33i$
$4+33i$
10. Multiple Choice
30 seconds
1 pt
Simplify
$\left(3+4i\right)\left(3-4i\right)$
25
25i
-25
-25i
11. Multiple Choice
30 seconds
1 pt
Simplify
$\left(15-2i\right)-\left(3+5i\right)$
$12-7i$
$-12-7i$
$12+7i$
$-12+7i$
12. Multiple Choice
30 seconds
1 pt
Simplify
$\left(2+7i\right)+\left(-11-6i\right)$
$-9+i$
$-9-i$
$9+i$
$9-i$
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