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3 years ago

Simplify the expression to a + bi form: (-5 + 4i) – (-5 + 3i)

Mathematics

2 answers:

marin [14]3 years ago

6 0

Answer:

Step-by-step explanation:

(-5+4i)-(-5+3i)

-5+4i+5-3i

-5+5+4i-3i

0+i

Arada [10]3 years ago

3 0

Answer:

$→( - 5 + 4i) - ( - 5 + 3i) \\ = - 5 + 4i + 5 - 3i \\ = - 5 + 5 + 4i - 3i \\ = 0 + i \\ = \boxed i✓$

<u>i</u> is the right answer.

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6. The function

motikmotik

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3 years ago

A bird was sitting 8 meters from the base of an oak tree and flew 10 meters to reach the top of the tree. How tall is the tree?

alina1380 [7]

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3 years ago

Read 2 more answers

A line goes through the point (-8,9), and has a slope of 3/4

olya-2409 [2.1K]

Answer:

$y=\dfrac{3}{4}x+15$

Step-by-step explanation:

Given that,

A line goes through the point (-8,9), and has a slope of 3/4.

We need to express in the form of Ax+B for this line.

We have, m = 3/4

So,

$y=\dfrac{3}{4}x+B$

Put y = 9 and x = -8 in the above equation.

$9=\dfrac{3}{4}(-8)+B\\\\9=-6+B\\\\9+6=B\\\\B=15$

So,

$y=\dfrac{3}{4}x+15$

It is the required equation of the line.

6 0

3 years ago

If the volume of a cube is 8cm^3 what is the surface area of the cube

Varvara68 [4.7K]

Answer:

i am sorry if it is wrong my answer is 1,536

Step-by-step explanation:

so if i am correct 8cm³ the formula for a surface area of a cube is:

SA=s³

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3 years ago

Doug's garden produces 5.8 times as many vegetables as Kelsey's garden. Together, the gardens produce 102 pounds of vegetables.

muminat

Answer:

Doug's garden: 87 lbs
Kelsey's garden: 15 lbs

Step-by-step explanation:

Let k represent the pounds of produce coming from Kelsey's garden. Then Doug's garden produces 5.8k pounds of produce, and the total weight of it is ...

k + 5.8k = 102

6.8k = 102 . . . . . . . . . . . simplify

k = 102/6.8 = 15 . . . . . . pounds of produce from Kelsey's garden

5.8k = 5.8·15 = 87 . . . . pounds of produce from Doug's garden

3 0

3 years ago