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iris [78.8K]
3 years ago
7

Help please! ASAP!!!!

Mathematics
1 answer:
zhuklara [117]3 years ago
5 0

Nami is correct since if a movie is PG-13 you have to be at least 13 yrs old or higher to enter. The sign is saying that you have to be 13 yrs old or younger to enter which is incorrect because a 5 yr old shouldn't be allowed to watch a PG-13 film for adults. The correct sign would be x≥13

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The sweater shack is offering a 15% discount on sweaters. If the regular price of a sweater is $30.00 what is the discount? What
e-lub [12.9K]

Answer:

25.5

Step-by-step explanation:

15% of 30.00 = 4.50 and 30.00 - 4.50 = 25.5. Hope this helps :)

7 0
3 years ago
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A random variable is defined as a process or variable with a numerical outcome. Which of the following are random variables?
Tju [1.3M]

Answer:

1 and 3

Step-by-step explanation:

  • The amount of rain in inches will be in numbers .So its random variable
  • No of books purchased is also a numerical .So its a random variable.
5 0
2 years ago
What is the domain of the function graphed?
Salsk061 [2.6K]

Answer:

D) all real numbers

Step-by-step explanation:

The domain is all real numbers because the graph continues to the left and right infinitely.

3 0
3 years ago
Help me solve this by multiplication or linar combination please
patriot [66]
X would be equal to 0 while y would be equal to -1
-20(0)+6(-1)=-6
-10(0)-4(-1)=4
4 0
3 years ago
Consider this sphere inside the cylinder. Which statements are true? Check all that apply. NEED HELP ASAP​
-Dominant- [34]

Option A: The height of the cylinder is equal to the diameter of the sphere.

Option C: The radius of the sphere is half the height of the cylinder.

Option E: The volume of the sphere is two-thirds the volume of the cylinder.

Solution:

The sphere is inside the cylinder.

Let r be the radius of the sphere.

Option A: The height of the cylinder is equal to the diameter of the sphere.

The sphere is fully occupied the cylinder.

If we draw the vertical line through enter of the sphere, which is equal to the height of cylinder.That is h = d. It is true.

Option B: The height of the cylinder is two times the diameter of the sphere.

That is h = 2d. From the above option, we know that h = d.

So, it is not true.

Option C: The radius of the sphere is half the height of the cylinder.

we know that diameter = 2 × radius (d = 2r)

From option A, we have h = d.

Substitute d = 2r, we get

⇒ h = 2r

Divide by 2 on both sides, we get

$\Rightarrow \frac{h}{2}=r

Therefore, it is true.

Option D: The diameter of the sphere is equal to the radius of the cylinder.

It is not true, because diameters of both cylinder and sphere are equal.

Option E: The volume of the sphere is two-thirds the volume of the cylinder.

Radius of cylinder and sphere = r

Height of cylinder h = 2r (by option C)

Volume of cylinder = Volume of sphere

  $\Rightarrow \pi r^2 h = \frac{4}{3} \pi r^3 (formula)

$\Rightarrow \pi r^2 (2r) = \frac{2\times2}{3} \pi r^3

$\Rightarrow 2 \pi r^3= \frac{2}{3} \times 2\pi r^3

Hence it is true.

Option A, option C and option E are true.

6 0
3 years ago
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