Ask question

Ask question

All categories

3 years ago

9

Study the chart in the Examination Figure. How can this person determine exactly how many hours he or she has available for stud

ying each week?

1 answer:

svlad2 [7]3 years ago

4 0

B add 148 and 168 and divided by 7 days

You might be interested in

Evaluate sin-|(-0.27 +0.95).<br> a) 42.8 °<br> b) 56.1 °<br> c) 71.8 °

Aleks [24]

Answer:

a) 42.8 degrees.

Step-by-step explanation:

sin-|(-0.27 +0.95) means the angle whose sine is (-0.27+0.95)

= sin-1(0.68)

Using a calculator the answer is 42.8 degrees.

6 0

3 years ago

State the congruent relation for BWO and IRO

Maksim231197 [3]

Answer:

D

Step-by-step explanation:

From the diagram

BW = IR

∠BWO = ∠IRO

WO = OR

Hence triangles are congruent by the SAS postulate → D

3 0

3 years ago

Three identical fair coins are thrown simultaneously until all three show the same face. What is the probability that they are t

mixer [17]

Answer:

The probability that the coins are thrown more than three times to show the same face is 0.3164.

Step-by-step explanation:

The problem is related to Geometric distribution.

The Geometric distribution defines the probability distribution of <em>X</em> failures before the first success.

The probability distribution function is:

$P(X=k)=(1-p)^{k}p;\ k = 0, 1, 2, ...$

First compute the probability that in the $i^{th}$ throw all the three coins will show the same face.

P (All the 3 coins shows the same face) = P (All the three coins shows Heads) + P (All the three coins shows Tails)

$=(\frac{1}{2}\times \frac{1}{2}\times \frac{1}{2} )+(\frac{1}{2}\times \frac{1}{2}\times \frac{1}{2} )\\=\frac{1}{8}+\frac{1}{8}\\ =\frac{2}{8} \\=\frac{1}{4}$

Now compute the probability that it takes more than 3 throws for the coins to show the same face.

P (<em>X</em> > 3) = 1 - P (<em>X</em> ≤ 3)

$=1-[P(X=1)+P(X=2)+P(X=3)]\\=1-[[(1-\frac{1}{4} )^{0}\times\frac{1}{4}]+[(1-\frac{1}{4} )^{1}\times\frac{1}{4}]+ [(1-\frac{1}{4} )^{2}\times\frac{1}{4}]+[(1-\frac{1}{4} )^{3}\times\frac{1}{4}]]\\=1-[0.2500+0.1875+0.1406+0.1055]\\=1-0.6836\\=0.3164$

Thus, the probability that it takes more than 3 throws for the coins to show the same face is 0.3164.

8 0

3 years ago

A stone is an English measure of weight. There are 14 lb in 1 stone and 2.2 lb in 1 kg. A certain person weighs 9 stone.

USPshnik [31]

For every one stone it's 14lb and for every kg it's 2.2 lb therefore you would have to multiply 14 by 9 then divide that answer by 2.2 and that answer will be your answer..
14•9=126
126÷2.2=57.27
You would have 57.27kg or if rounded you would have 57kg
Hope this helps

8 0

4 years ago

The sum of a number and ten is twenty in algebraic equation

Shtirlitz [24]

Step-by-step explanation:

Let the number be x. Then x + 10 = 20.

This is all you need to write out. But, for practice, find the solution as well.

3 0

3 years ago

Read 2 more answers