Answer:
49
Step-by-step explanation:
Let be the unknown number. Twice means times 2. So, the mathematical sentence should be .
Divide both sides by 2.
To remove the radical symbol, raise both sides to the second power.
Thus, the answer is 49. Twice the square root of 49 is equal to 14.
*CREDIT* goes to CebuMath: https://brainly.ph/question/1047782
HE SOLVED THIS NOT ME.
Answer:
D is the answer
Step-by-step explanation:
The explenation is shown on the picture above.
The last one , because I will now solve it for you and prove therefore.
x²–4x+5=0;
D=(–4)²–4•5=16–20= –4= (2i)².
So:
x1= (4–2i)/2= 2–i
x2= (4+2i)2= 2+i.
This is the whole answer....
Three other u will solve by yourself and have roots which will not be suitable.
Answer:
100
Step-by-step explanation:
hope this helped
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