3 years ago

What two different pairs of decimals whose sums are 8.69?

1 answer:

4 0

4.35 & 4.34. Just try to find two numbers that can add up to 8.69. There are many different answers such as 2.69 and 6, 3.98 and 4.71, etc.

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2. Describe how to use the conjugate to divide 2 − i by 3 + 2i, and then find the quotient.

DaniilM [7]

Answer:

$\frac{4}{13}-\frac{7}{13}i$

Step-by-step explanation:

$\frac{2-i}{3+2i}$

Multiply and divide by the conjugate.

The conjugate is the denominator with the sign of the complex number the opposite of the denominator.

$\frac{2-i}{3+2i}\frac{3-2i}{3-2i}\\ =\frac{2\times (3-2i)-i\times (3-2i)}{3^2-(2i)^2}\\ =\frac{6-4i-3i+2i^2}{9+4}\\ =\frac{4-7i}{13}\\ =\frac{4}{13}-\frac{7}{13}i$

Quotient = $\frac{4}{13}-\frac{7}{13}i$

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3 years ago

The sum of 14 and Greg's saving is 72

AlexFokin [52]

Hope this helps you..!!

4 0

3 years ago

Read 2 more answers

DO NOT ANSWER IF YOU DO NOT KNOW, Will give brainliest, like, comment, and 5 points to answer

Ghella [55]

Step-by-step explanation:

5:1 and 15:3 is equivalent because 5 ⋅ 3 = 15, and 1 ⋅ 3 = 3.

10.2 ⋅ 2.5 = 2.5.5 (This wasn't put into a ratio form.)

198:1,287 and 2:13 are equivalent because 198/99 = 2, and 1,287/99 = 13.

3 0

4 years ago

a veterinarian examined 4 times as many dogs as cats today. In all he examined 15 dogs and cats. Let d represent the number of d

taurus [48]

- D is the number of dogs
-C is the number of cars
*4×15=60

7 0

4 years ago

Part 1 , i really need help if anyone have the items for these please help

erma4kov [3.2K]

That’s should help you with that!!

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3 years ago