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3 years ago

PLEASE ASNWER ILL GIVE YOU BRIANLIEST

Mathematics

1 answer:

choli [55]3 years ago

7 0

Answer:

Answer what

Step-by-step explanation:

You forgot to put the image on the question.

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Solve Sine inverse x +sine inverse 2x = π/3 <br> Please solve it faster..

LuckyWell [14K]

Arcsin x + arcsin 2x = π/3

arcsin 2x = π/3 - arcsin x

sin[arcsin 2x] = sin[π/3 - arcsin x] (remember the left side is like sin(a-b)

2x = sinπ/3 cos(arcsin x)-cosπ/3 sin(arc sinx)

2x = √3/2 . cos(arcsin x) - (1/2)x)

but cos(arcsin x) = √(1-x²)===>2x = √3/2 .√(1-x²) - (1/2)x)

Reduce to same denominator:

(4x) = √3 .√(1-x²) - (x)===>5x = √3 .√(1-x²)

Square both sides==> 25x²=3(1-x²)

28 x² = 3 & x² = 3/28 & x =√(3/28)

3 0

3 years ago

It is estimated that 30% of households own a riding lawn mower. A sample of 17 households is studied. What is the standard devia

alina1380 [7]

Answer:

1.89 is the standard deviation of households who own a riding mower

Step-by-step explanation:

Let the random variable X denote the number of households owning a riding lawn mower. From the given information, X will be a Binomial random variable with parameters; n = 17 and p = 30% = 0.3

The standard deviation of X;

$\sqrt{n*p*(1-p)}$

$\sqrt{17*0.3*(1-0.3)} =1.89$

7 0

3 years ago

What is the solution for x^2 +14x +15

ololo11 [35]

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

7 0

3 years ago

Read 2 more answers

Adam celebrated his eighteenth birthday with friends at a Chinese restaurant. The bill came to $287.69 without tax. The service

blsea [12.9K]

To find the percent. A trick I learned in middle school was Dr. P

To turn a decimal to a percent and a percent to decimal... (look at picture)

Using that trick...

All you do is multiply $287.69 by .20

Which gives you $57.538 so you can round to either...

$57.54
Or
$57.50
Or
$58

And one of those are your answer!

5 0

3 years ago

Please help and show all work so I can fully understand it, thanks.

seraphim [82]

Answer:

$\frac{1}{m-4}$

Step-by-step explanation:

$\frac{\frac{4m-5}{m^4 -7m^3 +12m^2}}{\frac{4m-5}{m^3 -3m^2}}$

Factor the equation:

$\frac{\frac{4m-5}{m^2(m^2 -7m+12)}}{\frac{4m-5}{m^2(m-3)}}$

$\frac{\frac{4m-5}{m^2(m-3)(m-4)}}{\frac{4m-5}{m^2(m-3)}}$

Rewrite to suit the format of multiplying two fractions. Remember, dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second. A reciprocal of a fraction is when one switches the place of the numerator and the denominator, that is, the value on top (numerator), and the value on the bottom (denominator).

$\frac{4m-5}{m^2(m-3)(m-4)}*\frac{m^2(m-3)}{4m-5}$

Simplify, take out common terms that are found on both the numerator and denominator

$\frac{4m-5}{m^2(m-3)(m-4)}*\frac{m^2(m-3)}{4m-5}$

$\frac{1}{m-4}$

4 0

3 years ago