2 years ago

Write the expression (3 - 4i) + (5 + 9i) in the standard form a + bi.

Mathematics

1 answer:

babymother [125]2 years ago

6 0

8 + 5i. I just added the expression normally.

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50 POINTS PLEASE HELP!!!! THIS. IS. URGENT. WILL GIVE BRAINLIEST PLEASE JUST GIVE A GOOD EXPLANATION/BREAKDOWN

Licemer1 [7]

Answer: $\beta \beta \beta \beta \beta \beta \beta$ $\frac{x}{y} \frac{x}{y} \frac{x}{y} \frac{x}{y} \frac{x}{y} \frac{x}{y} x^{2} x^{2} x^{2} \alpha \alpha$

Step-by-step explanation:

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1 year ago

Marti is filling a 10– inch diameter ball with sand to make a medicine ball that can be used for exercising. To determine if the

Mice21 [21]

Answer:

Option A. $30\ pounds$

Step-by-step explanation:

step 1

Find the volume of the sphere ( medicine ball)

The volume is equal to

$V=\frac{4}{3}\pi r^{3}$

we have

$r=10/2=5\ in$ ----> the radius is half the diameter

Convert inches to feet

Remember that

1 ft=12 in

$r=5\ in=5/12\ ft$

assume

$\pi=3.14$

substitute

$V=\frac{4}{3}(3.14)(5/12)^{3}$

$V=0.3029\ ft^{3}$

step 2

Find the weight of the ball

Multiply the volume in cubic foot by 100

$0.3029*100=30.29\ pounds$

Round to the nearest pound

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3 years ago

Simon has 20 quarters and 12 dimes.He wants to purchase ice cream for his friends.An ice cream cone cost $1.00.How many cones ca

Helga [31]

Answer:

Step-by-step explanation:

Each ice cream cone costs 4 quarters or 10 dimes, so Simon has ...

20/4 + 12/10 = 5 + 1.2 = 6.2

times the price of an ice cream cone. He can buy 6 cones for his friends.

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2 years ago

How many times does nine go into 42

Lady bird [3.3K]

It only goes in 4 times

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3 years ago

What is the length of the edge of a cube with a<br> wolume of 512?

il63 [147K]

A≈8
V Volume

Using the formula
V=a3
Solving fora
a=V⅓=512⅓≈8

Therefore, to find the lenght of an edge of the cube, just find the cube root of the volume. In this case, the cube root of 512 is equal to 8.

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2 years ago