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2 years ago

Anyone willing to help me?

Mathematics

1 answer:

svlad2 [7]2 years ago

7 0

Answer:

1/2

Step-by-step explanation:

Probably of selecting a boy:

20/30 = 2/3

and brought 10 up to 20:

45/60 = 3/4

so Probably of selecting a boy and brought 10 up to 20:

2/3 x 3/4 = 2/4 = 1/2

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1/6 + 3/8 <br> A. 4/6<br> B. 4/8 <br> C. 4/14<br> D. 13/24

Naddika [18.5K]

Here is you're answer:

In order to get you're answer you need to find the common denominator then add.

$\frac{1}{6} + \frac{3}{8}$
Find the common denominator:
$CD = 48$
$= \frac{26}{48}$
Simplify:
$\frac{26}{48} \div 2 = \frac{13}{24}$
$= \frac{13}{24}$

Therefore you're answer is option D "13/24."

Hope this helps!

8 0

2 years ago

In the figure below, ray was constructed starting from rays and . By using a compass D and G were marked equidistant from E on r

DaniilM [7]

The correct answer is that the angles created are equal.

The steps given are used to create an angle bisector of the angle. That means it divides the angle into 2 congruent angles.

6 0

3 years ago

What expression is equivalent to (x+9)(x-2)-9x-6

Elden [556K]

Answer:

x(to the 3rd power) +7x(to the 2nd power) − 27x − 6

Step-by-step explanation

3 0

2 years ago

The midpoint of AB is M(-6, -6). If the coordinates of A are (-4, -8), what are

matrenka [14]

Answer: (-8, -4)

Step-by-step explanation:

3 0

2 years ago

20% of the patron's order the chef's special. The probability that 2 out of the next ten customers will order the chef's special

kotegsom [21]

Answer:

$P(x =2) = 0.3020$

Step-by-step explanation:

Given

$p =20\% = 0.20$

$n = 10$

Required

$P(x = 2)$

This question is an illustration of binomial distribution where:

$P(X = x) = ^nC_x * p^x * (1 - p)^{n-x$

So, we have:

$P(x =2) = ^{10}C_2 * 0.20^2 * (1 - 0.20)^{10-2}$

$P(x =2) = ^{10}C_2 * 0.20^2 * 0.80^8$

This gives

$P(x =2) = \frac{10!}{(10 - 2)!2!} * 0.20^2 * 0.80^8$

$P(x =2) = \frac{10!}{8!2!} * 0.20^2 * 0.80^8$

Expand

$P(x =2) = \frac{10*9*8!}{8!2*1} * 0.20^2 * 0.80^8$

$P(x =2) = \frac{10*9}{2} * 0.20^2 * 0.80^8$

$P(x =2) = 45 * 0.20^2 * 0.80^8$

$P(x =2) = 0.3020$

5 0

2 years ago