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3 years ago

Write the conjugate of the following complex number: -6i

Mathematics

1 answer:

evablogger [386]3 years ago

4 0

Answer:

$6i$

Step-by-step explanation:

We want to write the conjugate of the complex number:

$-6i$

Recall that the conjugate of a complex number in the form a + bi is a - bi, and vice versa.

We can rewrite our complex number as:

$\displaystyle 0 - 6i$

Hence, a = 0 and b = 6.

Then its conjugate will be:

$0 + 6i = 6i$

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Plese help i need the answer

Sladkaya [172]

Using linear function concepts, it is found that:

a) The initial value is of 3 and the rate of change is of 20.

b) The rate of change means that for each hour, the cost increases by 3 Dhs, while the initial value means that a flat fee of 20 Dhs is paid.

<h3>What is a linear function?</h3>

A linear function is modeled by:

$y = mx + b$

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.

b is the y-intercept, which is the value of y when x = 0, and also can be considered as the initial value.

In this problem, the function that gives the charge C for renting a bicycle for h hours is:

$C(h) = 3h + 20$

Item a:

Comparing to the standard function, we have that:

The initial value is of 3 and the rate of change is of 20.

Item b:

The rate of change means that for each hour, the cost increases by 3 Dhs, while the initial value means that a flat fee of 20 Dhs is paid.

You can learn more about linear function concepts at brainly.com/question/24808124

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3 years ago

Starlight tree farms sells douglas firs and noble first one December they sold 139 more douglas first than noble firs the total

Aloiza [94]

Part A:

Given that Starlight tree farms sells Douglas Firs and Noble First.

Let n be the number of Noble Fir trees sold, then if they sold 139 more Douglas First than Noble Firs, this means that the number of Douglas First trees sold is n + 139.

Given that the total number of trees sold was 377, then we have, n + n + 139 = 377, which means that 2n + 139 = 377

Therefore, the equation that could be used to solve for n, the number of Noble Fir trees sold is 2n + 139 = 377.

Part B:

Given that you are driving 55 miles per hour and you must drive a total of 440 miles. If you already driven 275 miles, then, the equation representing the number of hours, h, it will take to reach your destination is given by 55h + 275 = 440.

Subtracting 275 from both sides of the equation gives:

 $55h+275-275=440-275 \\ \\ \Rightarrow55h=165$

Dividing both sides by 55 gives:

 $\frac{55h}{55} = \frac{165}{55} \\ \\ \Rightarrow h=3$

Therefore, the time it will take you to reach your destination is 3 hours.

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3 years ago

I will mark brainlist to whoever answers first

Nesterboy [21]

Answer:

its D

Step-by-step explanation:

i did the math ez

6 0

2 years ago

Read 2 more answers

0.25q+0.10d=4.95 D=3q

lorasvet [3.4K]

0.25q + 0.1d = 4.95
d = 3q

0.25q + 0.1(3q) = 4.95
 0.25q + 0.3q = 4.95
 0.55q = 4.95
 0.55 0.55
 q = 9
0.25(9) + 0.1d = 4.95
 2.25 + 0.1d = 4.95
- 2.25 - 2.25
 0.1d = 2.7
 0.1 0.1
 d = 27

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4 years ago

What was done to the quadratic parent function F(x) = x2 to get the

zubka84 [21]

Answer:

Option C.

Step-by-step explanation:

If k<0, the function g(x) = f(x) + k represents the function f(x) shifted k units downwards.

In this case, given that k=-3 (k<0). The graph was shifted 3 units down. Therefore, the correct option is Option C.

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3 years ago