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Zina [86]
4 years ago
11

Solve in standard form 2+4i÷7+I

Mathematics
1 answer:
tia_tia [17]4 years ago
7 0


I rewrote it as → L + 2 + \frac{2i}{7}
You might be interested in
Information reference tables what is the solution set of the equation log4 (x2 + 3x) − log4 (x + 5) = 1?
faust18 [17]
Use this property of logarithms:

\log_b\left(\dfrac{x}{y}\right)=\log_b x-\log_b y

Your equation transforms into:

log_4\left(\dfrac{x^2+3x}{x+5}\right)=1

Now, you have to apply the definition of a logarithm to express the equation in exponential form:

\dfrac{x^2+3x}{x+5} = 4^1

In case you don't remember, this is the definition of a logarithm:

\log_b x = y \iff b^y = x

The log is the exponent (y) you have to raise the base (b) to in order to get the power (x).

Finally, solve the rational equation:

\dfrac{x^2+3x}{x+5} =4 \iff x^2+3x=4(x+5)
\iff x^2-x-20=0
\iff x=\dfrac{1\pm\sqrt{(-1)^2-4\cdot(-20)}}{2}= \left \{ {{5} \atop {-4}} \right.

The correct answer is d.
5 0
3 years ago
PLEASE HELP A rectangular region is removed from another rectangular region to create the shaded region shown below. Find the ar
Mars2501 [29]
<h3>Answer:  shaded region has area 107 square feet</h3>

================================================

Work Shown:

A = area of larger rectangle

A = length*width = 9*15 = 135 square feet

B = area of smaller rectangle

B = length*width = 7*4 = 28 square feet

C = area of shaded region

C = difference in areas of A and B

C = A - B = 135 - 28 = 107 square feet

4 0
3 years ago
Identify whether each set of ordered pairs is a function or is not a function. Function Not a Function
Anna35 [415]

Answer:

1. Function

2. Function

3. Function

4. Not a Function

5. Not a Function

Step-by-step explanation:

Hope it helps:)

7 0
3 years ago
Can someone help me with this ONE question? Write an equation.. and solve for X
matrenka [14]

Answer:

Equation: 720=(8x-1)+110+(5x+36)+116+(7x+19)+(6x-2)

x=17

Step-by-step explanation:

A 6 sided polygon is 720° degrees

so

720=(8x-1)+110+(5x+36)+116+(7x+19)+(6x-2)

Simplify

720=(8x+5x+7x+6x)+(−1+110+36+116+19+−2)

Combine like terms:

720=26x+278

flip equation:

26x+278=720

subtract 278 from both sides

26x=442

divide by 26 both sides:

x=17

Hope this helps.

7 0
2 years ago
Mapoela walks 2 km 30 minutes. At that rate, how far could she walk in 1 ½ hours​
kogti [31]

Answer:

5

Step-by-step explanation:

2=30 so 30= 1/2 or an hour so 2+2=4 witch makes an gour half of 2 is 1 so it would make 5

4 0
2 years ago
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