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nekit [7.7K]
3 years ago
7

Complex Numbers Subtract. 7-(-6+3i)-(-3-i)

Mathematics
2 answers:
kykrilka [37]3 years ago
8 0
Answer: 16 - 2i

Explanation:

7-(-6+3i)-(-3-i)
= 7 + 6 - 3i + 3 + i
= 16 - 2i


Savatey [412]3 years ago
6 0
Step 1: 7+6-3i+3+i
Step 2: 16-3i+i
Step 3: simplify: 16-2i

Answer: 16-2i
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Lucas started off with $10.00. he gave away 20% of his money to his sister, and 30% of the remainder of his money to his brother
Korolek [52]

Answer:

5.60

Step-by-step explanation:

20% of 10 = 2             he gave 2 dollars to his sis

2 - 10 = 8                      now lucas has 8 dollars

30% of 8 = 2.4               he gave 2.40 dollars to his bro

2.4 - 8 = 5.6

now he has 5 dollars and 60 cents

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6 0
3 years ago
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Would I distribute or foil first -2(b-2)(b-2)
7nadin3 [17]
You would distribute the -2 and the first b-2
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7 0
3 years ago
"Find an integer, x, such that 5, 10, and x represent the lengths of the sides of an acute triangle.
Contact [7]
A, b, c - the lengths of the sides of the triangle
and a ≤ b ≤ c
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a + b > c and if the triangle is an acute triangle then a² + b² > c².

1^o\\5\leq10\leq x\\\\\left\{\begin{array}{ccc}5+10 \ \textgreater \  x\\5^2+10^2 \ \textgreater \  x^2\end{array}\right\to\left\{\begin{array}{ccc}x \ \textless \  15\\ x^2 \ \textless \  125\end{array}\right\to\left\{\begin{array}{ccc}x \ \textless \  15\\ x \ \textless \  \sqrt{125}\approx11.1\end{array}\right\\\\\boxed{x=11}\\\\2^o\\5\leq x\leq10\\\\\left\{\begin{array}{ccc}5+x \ \textgreater \  10\\ 5^2+x^2 \ \textgreater \  10^2\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \  5\\ x^2 \ \textgreater \  75\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \  5\\ x \ \textgreater \  \sqrt{75}\approx8.7\end{array}\right\\\boxed{x=9}

3^o\\x\leq5\leq10\\\\\left\{\begin{array}{ccc}x +5 \ \textgreater \  10\\ x^2+5^2 \ \textgreater \  10^2\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x^2 \ \textgreater \ 75\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x \ \textgreater \ \sqrt{75}\approx8.7\end{array}\right\\\boxed{x\in\O}\\\\Answer:\boxed{x=9\ or\ x=11}\to your\ answer:\boxed{\boxed{x=11}}
8 0
3 years ago
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Alexis bought 2 bags of apples for the fruit salad for her party. Each bag contained 13 apples. If she cuts each apple into 8 pi
Lerok [7]

Answer:

13*8=104

104*2=

<em>208</em>

Step-by-step explanation:

4 0
2 years ago
A box contains 5 red marbles, 6 white marbles, and 8 blue. If a Marble is randomly selected from the box, what is the likely hoo
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The fraction should be as such.
Likelihood of white: 6/19
6 0
2 years ago
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