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Ket [755]
2 years ago
8

What is the probability that a family with three children will have all girls?

Mathematics
2 answers:
aleksley [76]2 years ago
4 0
B) 1/8 . i believe so
labwork [276]2 years ago
3 0

Answer:

B) 1/8

Step-by-step explanation:

each child born has 50/50 to be a boy or a girl, so, we determine a Bernoulli process where p=0.5, and we need 3 out of 3 successes.

the probability will then be:

(0.5)³=0.125=1/8

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5 × 10 to the power of 22 is how many times greater than 1 × 10 to the power of 21
alekssr [168]

Answer:

50 times greater

Step-by-step explanation:

If there are two numbers A and B, where A is greater than B,

If we want to find how many times greater A is to B, we simply divide, so that would be

A/B

Now, we have

5*10^{22}

and

1*10^{21}

We simply need to divide to find how much greater is the first number than the second number. Remember dividing numbers in scientific notation:

\frac{a*10^b}{c*10^d}\\=(\frac{a}{c})*10^{b-d}

Thus, we have:

\frac{5*10^{22}}{1*10^{21}}\\=(\frac{5}{1})*10^{22-21}\\=5*10^{1}\\=5*10\\=50

So the first number is 50 times greater than the second

4 0
3 years ago
Find the length of side x in simplest radical form with a rational denominator.60°130°X
iren [92.7K]

We will solve using the law of sines as follows:

\frac{1}{\sin(30)}=\frac{X}{\sin (60)}

Now, we solve for X:

\Rightarrow X=\frac{\sin(60)}{\sin(30)}\Rightarrow X=\sqrt[]{3}

So, the length of X is sqrt(3).

5 0
1 year ago
Please help me with this math
Montano1993 [528]

Answer:

um I don't understand it pls be more specific and I will help

8 0
2 years ago
4. You sketch a right triangle that has a
stich3 [128]

Answer:

√95 cm

Step-by-step explanation:

To solve, you need to use the pythagorean theorem, or a^2 + b^2 = c^2

The hypotenuse is the c and let one leg be b. You can write:

a^2 + 7^2 = 12^2

a^2 + 49 = 144

Now, you need to solve for a:

a^2 = 144 - 49

a^2 = 95

a = √95 cm, or about 9.75cm

3 0
3 years ago
Read 2 more answers
Use an iterated integral to find the area of the region bounded by the graphs of the equations.
Goryan [66]

Answer:

use photomath and it will solve ur problem

5 0
3 years ago
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