Find the sum of (–4 + i) and (10 – 5i).a. –3 + 5i
b. –3 - 5i
c. 6 – 4i
d. 6 – 6i
Answers
(-4 + i) + (10 - 5i)
Grouping similar terms:
(-4 + 10) + (i - 5i)
6 - 4i
From the choices, the correct answer is C.
C on edgenutiy just took it
Related Questions
Solve the following equation |-5x+20|=-15 for x
Faye owned 1,300 shares of Wonderband Corp. Last week, a 2-for-1 split was executed. The pre-split price per share was w dollars. a. Determine the number of shares Faye owned after the split. b. Write an algebraic expression for the price per share after the split. c. Express the total value of the Wonderband stock Faye owned algebraically after the split.
I want a good person who no really good at math and solve it
Find all real zeros of the function. f(x)=4(x^2-1)(x-3)(x+3)^2
Answers
Answer:
y = 80
x = 5
Hope this helped :)
Step-by-step explanation:
Lets say x + 5 so,
y = 8(5) + 12
y = 40 + 12
y = 52 so now we go back to the top equation which would be,
16(5) - 2(52) = -24
80 - 2(52) = -24
80 - 104 = -24, true
Therefore, any number you put in will still get you -24 so your answer is correct if you do substitution right.
Answer:
y = 80
x = 5
Hope this helped :)
Step-by-step explanation:
Lets say x + 5 so,
y = 8(5) + 12
y = 40 + 12
y = 52 so now we go back to the top equation which would be,
16(5) - 2(52) = -24
80 - 2(52) = -24
80 - 104 = -24, true
Therefore, any number you put in will still get you -24 so your answer is correct if you do substitution right.
-3n - 11
3n - 11
-3n + 11
3n + 11
Answers
☸ First here is the question you ask:
2n+5−(3n+7)+4n−9
☸ Lets start with this:
=2n+5+−3n+−7+4n+−9
☸ Now lets Combine Like Terms:
(Pst the bold stuff is for Combining Like Terms)
=2n+5+−3n+−7+4n+−9
=(2n+−3n+4n)+(5+−7+−9)
☸ Your answer shall be:
=3n+−11
☸Hope this helps!☸
x^2-4x+2=0
Answers
Answers
7/8=?/24
7 x 3=21
So the answer is 3
3/24
Approximately what percent of the bags of baby carrots have between 90 and 100 carrots?
Answers
Answer: 46%
Step-by-step explanation:
Since the number of baby carrots in a bag is normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = the number of baby carrots in the bag.
µ = mean
σ = standard deviation
From the information given,
µ = 94 carrots
σ = 8.2 carrots
The probability that a bag of baby carrots have between 90 and 100 carrots is expressed as
P(90 ≤ x ≤ 100)
For x = 90,
z = (90 - 94)/8.2 = - 0.49
Looking at the normal distribution table, the probability corresponding to the z score is 0.31
For x = 100,
z = (100 - 94)/8.2 = 0.73
Looking at the normal distribution table, the probability corresponding to the z score is 0.77
Therefore,
P(90 ≤ x ≤ 100) = 0.77 - 0.31 = 0.46
The percent of the bags of baby carrots that have between 90 and 100 carrots is
0.46 × 100 = 46%
x - 2y + 3z = 7
x + 2y - 5z = -21
a)(2, 3, 5)
b)(-2, 3, 5)
c)(2, -3, 5)
d)(2, -3, 5)
Answers
1x - 2y + 3z = 7 ⇒ 1x - 2y + 3z = 7
1x + 2y - 5z = -21 5y - 4z = -5
5y - 4z = -5 ⇒ -20y + 16z = 20
1x + 3y - 1z = 2 -4y + 8z = -28 ⇒ -20y - 40z = -140 1x - 2y + 3z = 7 ⇒ 1x - 2y + 3z = 7 -24z = -120
1x + 2y - 5z = -21 ⇒ 1x + 2y - 5z = -21 -24 -24
-4y + 8z = -28 z = 5
5y - 4(5) = -5
5y - 20 = -5
+20 +20
5y = 15
5 5
y = 3
x + 3(3) - 5 = 2
x + 9 - 5 = 2
x + 4 = 2
-4 -4
x = -2
(x, y, z) = (-2, 3, 5)
The solution to the answer is B. (-2, 3, 5).