$\frac{3+4\iota}{2+4\iota}=\frac{3+4 \iota}{2+4\iota} \times \frac{2-4 \iota}{2-4 \iota}\\=\frac{6 -12 \iota+8 \iota-16 \iota^2 }{4-16 \iota^2 }\\=\frac{ 6-4 \iota+16}{4+16}\\=\frac{22-4 \iota}{20}$

5 0

3 years ago

A tire has a radius of 13 inches. Which equation could be used to find the circumference of the tire

pav-90 [236]

Answer:

the tire should be 16 inches in diameter

a way that you can find diameter is if you are given the radius and you just multiply that number by 2 or ADD the same number because usually it is half of the diameter

6 0

2 years ago

Help!! please!!!!!!!!!!!

MrRissso [65]

Answer:3x+2y=36

Step-by-step explanation:

3 0

3 years ago

Sarah's new puppy weighed 5 2/7 pounds. After a month it had gained 5 7/10 pounds.

oksian1 [2.3K]

Answer:

769/70

Step-by-step explanation:

5 2/7 = 37/7

5 7/10 = 57/10

The lowest common multiple is 70

37*10/(7 * 10) = 370/70

57/10 = 57*7/(7*10) = 399/70

Now add

370/70 + 399/70

769/70

Is 769 prime? I think it might be.

Yes it is.

8 0

2 years ago