All categories

3 years ago

Can someone please help. I don’t know this.

Mathematics

1 answer:

denis-greek [22]3 years ago

4 0

Answer:

3rd answer

Step-by-step explanation:

Two dice with #s 1-6

To roll a sum of 7, the 2 numbers have to add up to 7.

First die Second die

1 6

2 5

3 4

4 3

5 2

6 1

Each of those combinations adds up to 7. There are 6 of them. The total number of possibilities of rolls is 6 x 6 = 36.

Probability is favorable outcomes / total outcomes, so it's 6/36 = 1/6

You might be interested in

Mr. randall bought 4 shirts, which were on sale. the shirts were originally priced $20. the salres price of the shirts was $5 do

USPshnik [31]

Answer:

The price Mr. Randall paid = 4 * (20-5)

Step-by-step explanation:

8 0

3 years ago

Wich number line represents the solution set for the 2x-6>6(x-2)+8

Fantom [35]

Well...
2x-6x>-12+8-6
-4x>-10
Attention! ">" change for "<" because we multiply both members for (-1)
x<10/4
It is the same to say (-infinite ; 10/4) or (-infinite ; 5/2) or (-infinite ; 2.5)
Good luck!
M.

3 0

3 years ago

Find the reference angle for 404 degrees

Hitman42 [59]

It would have to be 44°. If you go around 360° nothing happens. So subtract 404°-360° and you get 44°. 44°<90° from the x-axis so we are done.

3 0

3 years ago

Use the given information to find the unknown value:y varies directly as the square of z. When x = 2, then y= 20. Find y when 2

Vladimir79 [104]

Answer

y = 45 when x = 3

Step-by-step explanation:

$\begin{gathered} \text{Given that y varies directly as the square of x} \\ \text{This implies that there is a positive relationship betwe}en\text{ y and the square of z} \\ \text{Mathematically, this can be expressed as} \\ y\text{ }\propto x^2 \\ To\text{ turn this expression into an equation, we n}eed\text{ to introduce a proportionality constant k} \\ y=kx^2 \\ \text{ According to the question, y = 20 and x = 2} \\ \text{From the above informaion we can find our k} \\ y=kx^2 \\ 20\text{ = k }\cdot2^2 \\ 20\text{ = k }\cdot\text{ 4} \\ \text{Divide both sides by 4} \\ \frac{20}{4}\text{ = }\frac{k\cdot\text{ 4}}{4} \\ k\text{ = 5} \\ \text{ Find y when }x\text{ = 3} \\ y=kx^2 \\ y\text{ = 5 }\cdot(3)^2 \\ y\text{ = 5 }\cdot\text{ 9} \\ y\text{ = 45} \end{gathered}$

8 0

1 year ago

I NEED HELP PLEASE !!! <br> What is the value for x?<br> Enter your answer in the box.<br> x =

Vesnalui [34]

Answer:

Step-by-step explanation:

because we know its an isosceles triangle angle A and C will both be the same and since we know A = 69 C will also be 69. we also know that angles in a triangle add to 180 so take away the two 69s from the 180 to get 42

then we work backwards if its 5x + 2 then we need to do 5x - 2 to get 40 then divide it by 5 to get your answer 8!

(sorry if the explanation doesnt make sense )

6 0

3 years ago