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Len [333]
3 years ago
10

What is the magnitude of the vector 12 - 5i?

Mathematics
1 answer:
Monica [59]3 years ago
4 0

Answer:

the magnitude is 7

Step-by-step explanation:

as i means unit vector along x-axis so the magnitude of i is 1 and now,

= 12 - 5×1

= 12- 5

= 7

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Brandon buys a radio for $44.57 in a state where the sales tax is 7%.
grigory [225]

Answer:

$3.12

Step-by-step explanation:

44.57 x 0.07 = 3.12

8 0
2 years ago
Pls help, question on picture, will do brainliest if right<br> no links!!!!!
Flura [38]
Sin = opposite/hypothenuse
Given opposite = 16
Hypothenuse = ?
Use Pythagorean theorem to find hypothenuse

12^2 + 16^2 = h^2
144 + 256 = h^2
h^2 = 400, h = 20

You know hypothenuse is 20
Opposite/hypothenuse

Solution: 16/20
Simplify if you need to (4/5)
5 0
3 years ago
Read 2 more answers
Which shows the numbers in order from least to greatest?
gavmur [86]
So just convert to a common form
I will convert to decimal since 2 of them are already decimals

to conver 1 and 3/7 to decimal, just divide 3 by 7 using a calculator
1 3/7=1.43...

so 1.38, 1.43, 1.40
the greates is .43 then .40 then .38 so the order is
least to greatest
1.38, 1.4, 1 3/7 or D
5 0
2 years ago
Solve for x. 3(x + 2) + 4(x - 5) = 10 x = 36/7 x = 24/7 x = 16/7 x = 9/7
IRISSAK [1]

3(x + 2) + 4(x - 5) = 10

Use the distributive property:

3x + 6 + 4x - 20 = 10

Combine like terms:

7x -14 = 10

Add 14 to both sides:

7x = 24

Divide both sides by 7:

x = 24/7

5 0
3 years ago
Mari has 3 friends who are available to go with her to the movies, but she only has 2 extra tickets. How many different choices
aliina [53]

Answer:

3 different choices

Step-by-step explanation:

This problem is a combination problem: She has 3 friends, and we want to know how many groups of 2 friends there are. We can solve this using the combination of 3 choose 2:

C(3,2) = 3!(1! * 2!) = 3*2/2 = 3 possibilities

If we call her three friends A, B and C, the groups that can be formed are:

A and B

A and C

B and C

6 0
3 years ago
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