All categories

3 years ago

Which formula finds the probability that a point on the grid below will be in the blue area

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

8 0

Answer: P(blue) total number of squares / number of blue squares

(A)

Step-by-step explanation:

soldier1979 [14.2K]3 years ago

3 0

Answer:

Option 2 - $\text{P(blue)}=\frac{\text{number of blue squares}}{\text{total number of squares}}$

Step-by-step explanation:

To find : Which formula finds the probability that a point on the grid below will be in the blue area ?

Solution :

Probability is defined as the number of favorable outcome divided by total number of outcome.

As $\text{Probability}=\frac{\text{Favorable outcome}}{\text{Total outcome}}$

The probability that a point on the grid below will be in the blue area is given by,

$\text{P(blue)}=\frac{\text{number of blue squares}}{\text{total number of squares}}$

Therefore, option 2 is correct.

You might be interested in

A rectangular prism has the volume of 528 cubic

Olin [163]

Answer:

D. 6 feet

Step-by-step explanation:

The volume of a rectangular prism can be found by using L * W * H, or B * H

-> The length (L) times the width (W) is equal to the base (B)

V = B * H

528 = 88H

6 = H

7 0

3 years ago

For their craft project during the first week of camp, the campers used clothespins to make miniature rocking chairs. To make 90

fenix001 [56]

1080 clothespins makes 90 chairs and we need to find out how many clothespins it takes to make 1 chair.

We can set up a proportion of the number of chairs to the number of clothespins because of the proportional relationship.

x is the number of clothes pins for 1 chair

$\frac{90 chairs}{1080 clothespins} =\frac{1 chair}{x clothespins}$

Cross multiply to get

90*x= 1080*1

Divide both sides by 90 to isolate x

x = 12 clothespins

It takes 12 clothespins to make 1 chair.

5 0

3 years ago

I’ll give you brainliest!!!! What is the slope of the line containing (-4.3) and (2,-1)

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

The difference in the x is 6

The difference in the y is -4

-4/6 = -2/3

7 0

3 years ago

Read 2 more answers

Sin(A+B) sin(A-B) /sin^A Cos^B=1-cot^A Tan^B

telo118 [61]

In order to prove

$\dfrac{\sin(x+y)\sin(x-y)}{\sin^2(x)\cos^2(x)}=1-\cot^2(x)\tan^2(y)$

Let's write both sides in terms of $\sin(x),\ \sin^2(x),\ \cos(x),\ \cos^2(x)$ only.

Let's start with the left hand side: we can use the formula for sum and subtraction of the sine to write

$\sin(x+y)=\cos(y)\sin(x)+\cos(x)\sin(y)$

and

$\sin(x-y)=\cos(y)\sin(x)-\cos(x)\sin(y)$

So, their multiplication is

$\sin(x+y)\sin(x-y)=(\cos(y)\sin(x))^2-(\cos(x)\sin(y))^2\\=\cos^2(y)\sin^2(x)-\cos^2(x)\sin^2(y)$

So, the left hand side simplifies to

$\dfrac{\cos^2(y)\sin^2(x)-\cos^2(x)\sin^2(y)}{\sin^2(x)\cos^2(y)}$

Now, on with the right hand side. We have

$1-\cot^2(x)\tan^2(y)=1-\dfrac{\cos^2(x)}{\sin^2(x)}\cdot\dfrac{\sin^2(y)}{\cos^2(y)} = 1-\dfrac{\cos^2(x)\sin^2(y)}{\sin^2(x)\cos^2(y)}$

Now simply make this expression one fraction:

$1-\dfrac{\cos^2(x)\sin^2(y)}{\sin^2(x)\cos^2(y)}=\dfrac{\sin^2(x)\cos^2(y)-\cos^2(x)\sin^2(y)}{\sin^2(x)\cos^2(y)}$

And as you can see, the two sides are equal.

6 0

4 years ago

Melanie buys a skirt that costs 32.00. she pays 10% sales tax. how much does she pay for the dress, with tax

Olenka [21]

Answer:

$35.2 dollars

Step-by-step explanation:

You divide 10 by 32.00 and whatever that number equals, you add to 32.00:) Ta da! Hope this helps

5 0

4 years ago