3 years ago

Help me I'll help you back thanks emergency

Mathematics

1 answer:

Nadya [2.5K]3 years ago

5 0

The answer is 10 . a 11 .a♥☆♥☆☆

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☆pls help no one has helped me and I'm so confused!

motikmotik

Answer:

Step-by-step explanation:

a). $\frac{5\pm\sqrt{-4}}{3}$ = $\frac{5}{3}\pm \frac{\sqrt{-4}}{3}$

= $\frac{5}{3}\pm\frac{2\sqrt{(-1)} }{3}$

= $\frac{5}{3}\pm\frac{2i}{3}$ [Since, i = $\sqrt{(-1)}$ ]

b). $\frac{10\pm\sqrt{-16}}{2}$ = $\frac{10}{2}\pm \frac{\sqrt{-16}}{2}$

= $5\pm \frac{4\sqrt{-1}}{2}$

= 5 ± 2i [Since, i = $\sqrt{(-1)}$ ]

c). $\frac{-3\pm \sqrt{-144}}{6}$ = $-\frac{3}{6}\pm \frac{\sqrt{-144}}{6}$

= $-\frac{3}{6}\pm \frac{12\sqrt{-1}}{6}$

= $-\frac{1}{2}\pm 2\sqrt{-1}$

= $-\frac{1}{2}\pm 2i$ [Since, i = $\sqrt{(-1)}$ ]

4 0

3 years ago

Round 2769.44 to the nearest tenths place

vlada-n [284]

It would be 2769.44 still since it would technically be 2769.440 if you were rounding to the TENTHS place. The Zero(0) doesn't change anything so the answer is

2769.44

4 0

4 years ago

There are 321 crayons in a box and 204 crayons on the floor. About how many fewer than 1,000 crayons are there? Estimate. Then s

Sati [7]

Answer:

See below

Step-by-step explanation:

The estimated number:

300 + 200 = 500

The difference between the estimated number an 1000 is:

1000 - 500 = 500

The exact number:

321 + 204 = 525

The difference between the exact number and 1000 is:

1000 - 525 = 475

6 0

3 years ago

Five-sixths of the thirty students passed their test. How many student did not pass

vlada-n [284]

Answer:

5 as 5/6 of 30= 25 and 25+5 =30

Step-by-step explanation:

5 0

3 years ago

An airplane flies 56 miles due north than 33 miles due east. How many miles is the plane from its starting point?

Darya [45]

Is it 89 ? Wouldn’t you just add them up from the starting point ?

8 0

3 years ago