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kobusy [5.1K]
3 years ago
8

Write the expression (3 - 4i) + (5 + 9i) in the standard form a + bi.

Mathematics
1 answer:
babymother [125]3 years ago
6 0
8 + 5i. I just added the expression normally.   
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Plz help what is this 8h+(-7.9d)-16+5d-3.4h
Klio2033 [76]

Answer:4.6h-2.9d-16

Step-by-step explanation:

7 0
3 years ago
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Jane says that she can use addition to show that the graphs of 2x - 3y = 1 and 2x + 3y = 2 are intersecting lines. In two or mor
iogann1982 [59]
For this case we have the following equations:
 2x - 3y = 1
 2x + 3y = 2
 When adding both equations we observe that:
 Sentence 1: we have an equation of a variable, which in this case will be x. We can clear the value of x.
 Sentence 2: Knowing the value of x, we can substitute in any equation and find the value of y.
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4 0
3 years ago
A factory produces 80,000 candies each day. They produce equal quauntities of four flavors cherry lemon orange and strawberry. T
Stells [14]

Answer: \dfrac14

Step-by-step explanation:

Given: The factory produces equal quantities of four flavors cherry lemon orange and strawberry.

Let  orange candy= cherry = lemon = strawberry  = x

Total candies = x + x + x + x= 4x

The probability that a randomly selected candy is orange = \dfrac{x}{4x}=\dfrac14

Hence, the probability that a randomly selected candy is orange = \dfrac14

3 0
3 years ago
Select the correct answer.<br> What is the solution to the equation?
Ierofanga [76]

Answer:

B

Step-by-step explanation:

\sqrt{x} + 6 = x ( subtract 6 from both sides )

\sqrt{x} = x - 6 ( square both sides )

x = (x - 6)² ← expand using FOIL

x = x² - 12x + 36 ( subtract x from both sides )

0 = x² - 13x + 36 , that is

x² - 13x + 36 = 0 ← in standard form

(x - 4)(x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x - 9 = 0 ⇒ x = 9

As a check

Substitute these values into the equation and if both sides are equal then they are the solutions.

x = 4

left side = \sqrt{4} + 6 = 2 + 6 = 8

right side = x = 4

Since 8 ≠ 4 then x = 4 is an extraneous solution

x = 9

left side = \sqrt{9} + 6 = 3 + 6 = 9

right side = x = 9

Thus the solution is x = 9 → B

8 0
2 years ago
Pls help me guys!<br> Thanks =P
tigry1 [53]
The  answer of t he  trapezoid  area  problem is  112.
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