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3 years ago

. If you roll two dice, what is the probability of rolling a not rolling a

Mathematics

1 answer:

ss7ja [257]3 years ago

3 0

With two dice, you can get sums of between 2 and 12,

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I will mark you brainiest if you can answer this

Katarina [22]

Answer:

Step-by-step explanation:

Gl :>

4 0

2 years ago

What is 9/10 divided by 7/10

belka [17]

It's 9/7 but you can try simplifying after that

4 0

3 years ago

Read 2 more answers

Helium is used for balloons because it is less dense than air. This is what allows helium balloons to rise. Suppose a helium- ai

Kay [80]

Answer: Option A

About 0.02 pounds

Step-by-step explanation:

We know that density is defined as:

$d = \frac{m}{v}$

Where

d is the density

m is the mass

v is the volume

We want to calculate the helium-air mass of a spherical balloon and we know its density and the diameter of the balloon.

Then we can calculate its mass.

1) We use the diameter of the spherical globe to calculate its volume.

The volume of a sphere is:

$V = \frac{4}{3}\pi r ^ 3$

and

$radius = \frac{diameter}{2}$

$V = \frac{4}{3}\pi(\frac{d}{2}) ^ 3\\\\V = \frac{4}{3}\pi(\frac{1}{2}) ^ 3$

$V= 0.5236\ ft^3$

2) Use the density formula to find the mass

$d = \frac{m}{v}$

$m = vd$

$m = (0.5236\ ft^3)*(0.04\ \frac{pound}{ft^3})\\\\m = 0.02\ pounds$

<em>The answer is 0.02 pounds</em>

5 0

3 years ago

What does x equal to x/7 - 4 = -5

beks73 [17]

Answer:

x = -7

Step-by-step explanation:

So we are asked to find what x is equal to in the equation:

$\frac{x}{7}-4=-5$

In other words, we are asked to solve for x.

$\frac{x}{7}-4=-5$

Add 4 to both sides of the equation.

$\frac{x}{7}=-1$

Multiply both sides by 7.

x = -7

So we have solve the equation for x and have found that x = -7.

I hope you find my answer and explanation to be helpful. Happy studying.

7 0

3 years ago

Read 2 more answers

Plz explain how you got the answer

SVEN [57.7K]

Looking at the coordinates of the points, we can see that PQ is 4 units.

Since both P and Q have the same y coordinate, we can now start to look at the x coordinate. Since they have the same y coordinate, that means that to find the length of the segment, we have to take the absolute value of the subtraction of the coordinates of the x value of each of the points. -3 - 1 is -4. The absolute value of -4 is 4, meaning that PQ is 4 units long.

4 0

3 years ago