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2 years ago

You roll a fair 6 sided die. what is p (roll less than 4)

Mathematics

1 answer:

Darina [25.2K]2 years ago

3 0

Answer:

1/2

Step-by-step explanation:

Since this die has 6 sides, for each roll it has 6 outcomes.

Hence the probability of it landing on any specific number is 1/6.

Since there are only 3 outcomes wanted (roll less than 4 so it can be 1, 2, or 3) then we have to add the probability of each number being rolled so that is:

1/6 chance of rolling1

1/6 chance of rolling2

1/6 chance of rolling3

1/6 + 1/6 + 1/6

=3/6

=1/2

You might be interested in

Perimeter of a quarter circle is 17.85 what is the quarter circles radius

givi [52]

The radius of the given circle is 2.84 units

Step-by-step explanation:

Step 1 :

Given

The perimeter of a quarter table is 17.85

We need to find the circle's radius.

Step 2 :

The circle's perimeter is given by the formula, 2 $\pi$ r where r represents the circle's radius

So from this we have ,

2 $\pi$ r = 17.85

We can determine the radius by dividing the perimeter value by 2 $\pi$

= > r = 17.85 divided by 2 $\pi$ r

= 2.84 [ taking $\pi$ = $\frac{22}{7}$ ]

Step 3 :

Answer :

The radius of the given circle is 2.84 units

4 0

3 years ago

Please help I need this answer ASAP

kvv77 [185]

Answer:

7 granola bars

Step-by-step explanation:

560 calories in 4 bars

560/4 = 140 per bar

980/140 = 7 bars

6 0

1 year ago

Simplify the expression 2√ 20 − 3√ 7 − 2√ 5 + 4√ 63 .

Kisachek [45]

Simplify √20 to 2√5

2 * 2√5 - 3√7 - 2√5 + 4√63

Simplify √63 to 3√7

2 * 2√5 - 3√7 - 2√5 + 4 * 3√7

Simplify 2 * 2√5 to 4√5

4√5 - 3√7 - 2√5 + 4 * 3√7

Simplify 4 * 3 √7 to 12√7

Collect like terms

(4√5 - 2√5) + (-3√7 + 12√7)

Simplify

2√5 + 9√7

Answer: B

3 0

2 years ago

What are the first four terms of the sequence a1=−9 and an+1=an+n. I really need help with this im struggling

pochemuha

$a_{n+1}=a_n+n$

The formatting was a bit confusing, so please do let me know if this isn't the correct equation for the sequence.

The first term is given, which is

$a_1=-9$

Now, use the equation for the next terms:

$a_{1+1}=a_2=-9+1=-8$

$a_{2+1}=a_3=-8+2=-6$

$a_{3+1}=a_4=-6+3=-3$

Thus, the first 4 terms are -9, -8, -6, and -3. Let me know if you need any clarifications, thanks!

6 0

2 years ago

I have to write the equation of the line in slope intercept from that crosses through the ordered pairs (2,-2) and (4,1)

jekas [21]

First find slope=m=(y2-y1)/(x2-x1). In this case:

(-2-1)/(2-4)=m=-3/-2

m=1.5, and since we are making a line of the form y=mx+b we have so far:

y=1.5x+b, now using either point, (2,-2) we can solve for b, the y-intercept:

-2=1.5(2)+b

-2=3+b

b=-5

So our line is:

y=1.5x-5

3 0

2 years ago