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yan [13]
2 years ago
12

Plz help. fast im about to leave. do it fast plz.

Mathematics
2 answers:
Svetach [21]2 years ago
6 0
Hello!

A beach ball is shaped as a sphere. You're trying to find the volume of a sphere.

Formula:  \frac{4}{3}  \pi r^3

r = 6.3
6.3³ = 6.3 × 6.3 × 6.3 = 250.047

\frac{4}{3} \times 250.047 =  \frac{1000.188}{3} = 333.396


333.396 × 3.14 = 1,046.9(rounded)

Answer ⇒ 1,046.9 inches
alekssr [168]2 years ago
5 0
Formula for a sphere: 4/3 * pi* r³

when the ball is fully inflated, the radius is 6.3 in

substituting r = 6.3

4/3 * pi * (6.3)³

= 1047.39 in³

Best of Luck! :)
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Y is 5 less than the square of the sum of p and q.
guajiro [1.7K]

Answer:

y = (p+q)² - 5

Step-by-step explanation:

Use the wording to do this:

y = (p+q)² - 5

3 0
3 years ago
A high speed train travels a distance of 503 km in 3 hours.
tensa zangetsu [6.8K]

The average speed, in km/minute, of the train is 2.79 km/minute

<h3>Calculating average speed </h3>

From the question, we are to calculate the average speed in km/minute

From the given information,

Distance travelled = 503 km

Time taken = 3 hours = 3 × 60 minutes = 180 minutes

Using the average speed formula,

Average speed = Distance / Time

∴ Average speed of the train = 503 / 180

Average speed of the train = 2.79 km/minute

Hence, the average speed, in km/minute, of the train is 2.79 km/minute

Learn more on Calculating average speed here: brainly.com/question/12025128

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3 0
1 year ago
Find the number of permutations of the first 9 letters of the alphabet, taking 4 letters at a time.
Vinil7 [7]

Solution-

First 9 letters of alphabet are- A,B,C,D,E,F,G,H,I

Total number of ways of selection of 4 letters from 9 alphabets = 9C4

=9!÷((4!).(9-4)!) = 9!÷(4!×5!) = (9×8×7×6)÷(24) = 126

The number of ways of arranging these 4 numbers = 4! = 24

∴ Total number of possible permutations = 9C4×4! = 126×24 = 3024

∴ option number 2 is correct.

8 0
3 years ago
Read 2 more answers
Eric Drew an obtuse triangle. Which of the following could be true for Eric's triangle.
Vika [28.1K]

Answer:

<u>Option:B</u> is the correct answer.

B: possible angle measures of the triangle are 92, 48, and 40 .

Step-by-step explanation:

We know that an obtuse triangle is a triangle whose one angle is a obtuse angle ( i.e. the measure of the angle is greater than 90 degree and less than 180 degrees).

A)

A: all three angles have equal measures

Let the angle of a triangle be 'x'.

As we know that the sum of all the angles of a triangle is 180°.

This implies that:

x+x+x=180°

3x=180°

⇒ x=60°

Hence, the triangle will not be obtuse as none of the angle is obtuse.

Hence, option: A is incorrect.

B)

possible angle measures of the triangle are 92, 48, and 40.

This option is correct.

Since there is one angle which is obtuse ( measure 92 degree)

and also such a angle measure is possible in a triangle as sum of all the angles is 180°.

( since 92+48+40=180°)

C)

two of the angles are equal, and the third angle has a measure of 70.

Let the equal angles be represented by 'x'.

As the sum of all the angles is 180°.

⇒   x+x+70=180°

⇒ 2x=110°

⇒  x=55°

Hence, here also none of the angle is obtuse.

hence, option: C is incorrect.

D)

One angle has a measure of 90, while, the other two angles measure less than 90°.

Such a triangle will not be a obtuse triangle as none of the angle measure is greater than 90°.

Hence, option: D is incorrect.

4 0
3 years ago
7(8+2) = 7(8)+7(2). This is a example of the ______ property of multiplication
ryzh [129]

Answer:

Distributive

Step-by-step explanation:

In any problem with a form of A(b+c) you are distributing the A to both b and c

As you can see in your example, you are distributing the 7 to both the 8 and the two

If you were to solve this problem the final answer would be 70

The property is Distributive

6 0
3 years ago
Read 2 more answers
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