2 years ago

Can someone plz help me with this one problem!!!

Mathematics

2 answers:

poizon [28]2 years ago

7 0

Answer:

Step-by-step explanation:

inn [45]2 years ago

6 0

Answer:

Step-by-step explanation:

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slamgirl [31]

Answer:

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2 years ago

Solve for x. x² = 9 x=±3 x=±4.5 x=±18 x=±81

Burka [1]

I pretty sure x equals 3

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3 years ago

Given the following triangles, what additional information is required in order to know that the triangles are congruent because

Soloha48 [4]

Answer:

The correct answer is : DCQ ( angle) = DCE (angle)

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3 years ago

Read 2 more answers

The probability of rain =0.2, sun=0.3,cloud=0.5. What is the probability of rain and sun over a two day period?

svp [43]

Answer:

0.2752512

Step-by-step explanation:

The formula you are looking for is the binomial probability:

P (X) = ------------ * (P)^X * (q)^n - X

(n- X)! X!

For your particular problem:

n=7

X=2

q = 1-p = .8

7!/(5!*2!)*(.2)^2*(.8)^5 = 0.2752512

Hope this helps, have a nice day/night! :D

6 0

2 years ago

An octagonal swimming pool has a base area of 22 square feet The pool is 3 feet deep How many cubic feet of water can the pool h

LenKa [72]

The pool can hold 65.84 ft³ of water

Explanation:

Given:

Shape of pool = octagonal

Base area of the pool = 22 ft²

Depth of the pool = 3 feet

Volume, V = ?

We know:

Area of octagon = 2 ( 1 + √2) a²

22 ft² = 2 ( 1 + √2 ) a²

$\frac{11}{1+\sqrt{2} } = a^2$

a² = $\frac{11}{2.42}$

a² = 4.55

a = 2.132 ft

Side length of the octagon is 2.132 ft

We know:

Volume of octagon = $2(1+\sqrt{2} ) X (a)^2 X h$

$V = 2(1+\sqrt{2})X (2.132)^2 X 3\\ \\V = 2 ( 2.414) X 4.5454 X 3\\\\V = 65.84 ft^3$

Therefore, the pool can hold 65.84 ft³ of water

8 0

3 years ago