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3 years ago

1 1/5 divided by 2/3?

Mathematics

2 answers:

Goryan [66]3 years ago

8 0

The answer should be 1.8 or 1 4/5

Slav-nsk [51]3 years ago

6 0

Answer:

6/5 x 3/2= 18/10

Step-by-step explanation:

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Factor over the complex numbers, if possible: x² + 2xyi - y2<br><br> What is the answer?

yanalaym [24]

9514 1404 393

Answer:

(x +yi)²

Step-by-step explanation:

Comparing the given expression to the square of a binomial, we can determine the given expression to be a square.

(a +b)² = a² +2ab +b²

Here, we have a=x and b=yi. Then the factorization is ...

x² +2xyi +(yi)² = (x +yi)²

8 0

3 years ago

From 1000, create a pattern by subtracting 8 from each number and stop at 5 numbers

shusha [124]

Well subtract 8 from 1000 and then do that five times. so 992,984,976,968, and 960<span />

7 0

3 years ago

What is<br> -3/4 + 2 3/4

Fittoniya [83]

Answer:

Step-by-step explanation:

ok so let's start

were starting off with -3/4 and were adding 2 3/4 to that and it's equal to 2 3/4 subtract 3/4

-3/4 + 2 3/4 = 2 3/4 - 3/4

2 3/4 - 3/4 = 2

-3/4 + 2 3/4 = 2

it's 2 my dude or girl i don't know

3 0

3 years ago

The U.S. Energy Information Administration (US EIA) reported that the average price for a gallon of regular gasoline is $3.94 (U

tekilochka [14]

Answer:

a) 25

b) 49

c) 97

Step-by-step explanation:

The sample size is calculated using the formula, n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

Now,

for 95% confidence level value of z-factor = 1.96

Given:

Mean = $3.94

standard deviation = $0.25

thus,

a) for margin of error = $0.10

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.10}})^2$

n = 4.9²

n = 24.01 ≈ 25 (Rounded off to next integer)

b) for margin of error = $0.07

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.07}})^2$

n = 7²

n = 49

c) for margin of error = $0.05

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.05}})^2$

n = 9.8²

n = 96.04 ≈ 97 (Rounded off to next integer)

6 0

3 years ago

...............................

antoniya [11.8K]

Answer:

Option C is the correct option.

Step-by-step explanation:

√ 8 • √ 5

Calculate the product

$= \sqrt{40}$

Simplify the radical expression

$= \sqrt{2 \times 2 \times 10}$

$= 2 \sqrt{10}$

Hope this helps...

Best regards!!

4 0

3 years ago