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3 years ago

A duck flies 120 miles in two and a half hours what is its average speed in miles per hour?

1 answer:

6 0

The way to get your answer is to divide 120 by 2 then you get 60, Now just add 40 which is miles every half hour. so your answer is 40

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Find the modulus of the complex number 6-2i

Papessa [141]

Answer:

The modulus of the complex number 6-2i is:

$|z|\:=2\sqrt{10}$

Step-by-step explanation:

Given the number

$6-2i$

We know that

$z = x + iy$

where x and y are real and $\sqrt{-1}=i$

The modulus or absolute value of z is:

$|z|\:=\sqrt{x^2+y^2}$

Therefore, the modulus of $6-2i$ will be:

$z=6-2i$

$z=6+(-2)i$

$|z|\:=\sqrt{x^2+y^2}$

$|z|\:=\sqrt{6^2+\left(-2\right)^2}$

$=\sqrt{6^2+2^2}$

$=\sqrt{36+4}$

$=\sqrt{40}$

$=\sqrt{2^2}\sqrt{2\cdot \:5}$

$=2\sqrt{2\cdot \:5}$

$=2\sqrt{10}$

Therefore, the modulus of the complex number 6-2i is:

$|z|\:=2\sqrt{10}$

3 0

3 years ago

Solve n + 5(n - 1) = 7

Nina [5.8K]

Answer:

N = 2

Step-by-step explanation:

n + 5(n-1) = 7

n + 5n - 5 = 7

6n - 5 = 7

6n = 12

n = 2

HOPE THIS HELPS

PLZZ MARK BRAINLIEST!!!

7 0

3 years ago

Read 2 more answers

Solve the equation for w<br> 7w + 18 = 10w + 24

DochEvi [55]

Answer:

The answer is -2.

Step-by-step explanation:

7w + 18 = 10w + 24

7w = 10w + 6

-3w = 6

w = -2

6 0

3 years ago

Read 2 more answers

What are two different ways of saying "find the<br> solution"?

just olya [345]

Answer:

find the difference. find the sum

Step-by-step explanation:

5 0

4 years ago

Please help answer thisq

Julli [10]

Answer:

More than one independent variable being tested.

Step-by-step explanation:

If a student wants to figure out if ONLY salt affects the growth of seeds, the student shouldn't change the amount of sunlight being received.

5 0

3 years ago