MATHEMATICS HIGH SCHOOL

A family consists of a father, a mother and 2 children. What is the probability that all 2 children are boys?1/2

1/4

1/6

1/8

Answers

Answer 1

Answer:

Step-by-step explanation:

The probability of having a boy is ½ and that of a girl is ½.

Probability of boy, boy is (pb*pb) and given pb to be ½ then we can prove the point as follows

For these two children

The options are as follows

1 boy(first) and 1 girl

2 boys

2 girls

1 girl( first) and 1 boy

These are four possible options and the option for two boys is 1 out of the four.

The probability of 2 boys is ½*½=¼

Related Questions

Order the set of integers from greatest to least. {-100, -89, -124, -69, -52}
a company sells tablet computers and phones. it sells a total of 150 items this month. the number of tablets sold is half of the number of phones sold. the company makes profit of $300 on each tablet and $400 on each phone. what is the profit the company makes this month?
The triangle of auscultation is bounded by the rhomboid major, the trapezius, and the
Yolanda spends 8/23 hours per month playing soccer. Approximately how many hours does she play soccer in a year
A fish swims at a rate of 8 feet per second. How far can the fish swim in 23seconds?

<1 is a complement of <2, and m<1=66. find <2

Answers

The measure of angle <2 is 24 degrees.

We know that, Complementary angles are when two angles add up to 90 degrees.

When two angles are complementary, their sum is 90 degrees.

Here, from this information we have to find the measure of angle <2.

Given that angle <1 is a complement of angle <2, we can set up the following equation:

m<1 + m<2 = 90

Substitute the given value for angle <1:

66 + m<2 = 90

Now, isolate m<2 by subtracting 66 from both sides of the equation:

m<2 = 90 - 66

m<2 = 24

So, the measure of angle <2 is 24 degrees.

To learn more on angle click:

brainly.com/question/28451077

#SPJ3

Answer: 24 degrees

Step-by-step explanation: Complementary angles are when two angles add up to 90 degrees. Just do 90-66=24. The answer is 24 degrees. Hope that helped!

when i was 2 years old my sister was half in my age now i am 100 years old then how old is my sister?

Answers

When I was 2 years old, my sister was 1/2 my age ==> she was 1 ==> she will
always be 1 year younger than I am, and she will never be able to catch up to me.

Now I am 100, so my sister must be 99 .

Three of four numbers have a sum of 22. If the average of the four numbers is 8, what is the fourth number?

Answers

$a+b+c=22\n \n (a+b+c+x)/(4)=8\n \n a+b+c+x=32\n \n 22+x=32\n \n \boxed{x=10}$

Answer:

Step-by-step explanation:

Let's call the four numbers x1, x2, x3, and x4. Their average is (x1 + x2 + x3 + x4)/4 = 8, so x1 + x2 + x3 + x4 = 4 × 8 = 32. And we know that three of the numbers have a sum of 22, so x1 + x2 + x3 = 22.

Subtracting this last equation from the first equation, we have:

$\sf:\implies{x4 = 32 - (x1 + x2 + x3) = }$

$\sf:\implies{32 - 22 = 10}$

So the fourth number is 10.

Which inequality represents all values of x for which the product below is defined?√5x ·√x+4
a.x>0
b.x≥0
c.x≤-4
d.x≥-4

Answers

$√(5x)\cdot√(x+4)\n\n5x\geq0\ \wedge\ x+4\geq0\nx\geq0\ \wedge\ x\geq-4\Righarrow x\geq0\n\nAnswer:B.$

Answer:

Answer is B for Apex!

Step-by-step explanation:

Find the area of the trapezoids. What is the Area of the trapezoids

A= Square units

Answers

Answer:

$area = area \: of \: rectangle + area \: of \: triangles \n = (6 * 2) + ( (1)/(2) * 6 * 2) + ( (1)/(2) * 6 * 4) \n = 12 + 6 + 12 \n = 30 \: sq \: units$

Answer:

Step-by-step explanation:

According to the EPA, about 40 million U.S. tons of hazardous waste is produced each year. If individual household waste makes up 1.6 million tons of this waste, what percent of the total hazardous amount produced is household waste? A. 0.04% B. 0.03% C. 0.25% D. 2.5% E. 4%