Answer:
2√5
Step-by-step explanation:
√20
√4 ×√5
2√5
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99% sure this I correct
8-6=2
6/15=2/a
a=15•2/6
a=30/6
a=5
X=a+15
X=5+15
X=20
Answer:
For any 2 real numbers all <em>algebric</em><em> </em><em>operations</em><em> </em><em>like</em><em> </em><em>+</em><em>,</em><em>-</em><em>,</em><em>×</em><em>,</em><em>÷</em><em> </em><em>are</em><em> </em><em>defined</em>
Answer:
- B. 2 x minus z minus 5 + 2 z squared
Step-by-step explanation:
<u>Conditions:</u>
- The x-term has a coefficient of 2,
- The z-term has a coefficient of -1.
- The expression has a constant term less than zero
<u>Answer options:</u>
A. 2 x + z + 5 minus 6 z squared ⇒ 2x +z+5-6z²
- Incorrect. Only the first condition is met
B. 2 x minus z minus 5 + 2 z squared ⇒ 2x-z-5+2z²
- Correct. All 3 conditions met
C. Negative 2 x minus z minus 5 + 2 z squared ⇒ -2x-z-5+2z²
- Incorrect. The first condition is not met
D. Negative 2 x + z minus 5 + 2 z squared ⇒ -2x+z-5+2z²
- Incorrect. Only the third condition met
Answer:
"principal root"
Step-by-step explanation:
The positive (even or odd) root of a positive real number is called its <em>principal root</em>.
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When an odd root is taken of a negative real number, the negative real root is the principal root. That is -2 is the principal cube root of -8.