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2 years ago

How many cubes are needed to build this figure? 7 8 6 9

Mathematics

1 answer:

iris [78.8K]2 years ago

7 0

Answer:

about seven cubes

Step-by-step explanation:

u have to draw a line to seperate the cube so u can count them it will be easier that way

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The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party,

Mama L [17]

Answer:

$(a)\ P(x = 0) = 0.2725$

$(b)\ P(x \ge 1) =0.7275$

$(c)\ P(x \le 2) = 0.8948$

Step-by-step explanation:

Given

$n = 8$ --- 8 friends

$p = 15\%$ --- proportion that one-time fling

This question is an illustration of binomial probability, and it is represented as:

$P(X = x) = ^nC_x* p^x * (1 - p)^{n-x}$

Solving (a): P(x = 0) --- None has done one time fling

$P(x = 0) = ^8C_0* (15\%)^0 * (1 - 15\%)^{8-0}$

$P(x = 0) = 1* 1 * (1 - 0.15)^{8}$

$P(x = 0) = 0.85^8$

$P(x = 0) = 0.2725$

Solving (b): $P(x \ge 1)$

To do this, we make use of compliment rule:

$P(x = 0) + P(x \ge 1) =1$

Rewrite as:

$P(x \ge 1) =1 - P(x = 0)$

$P(x \ge 1) =1 - 0.2725$

$P(x \ge 1) =0.7275$

Solving (c): $P(x\le 2)$ --- Not more than 2 has one time fling

This is calculated as:

$P(x\le 2) = P(x = 0) + P(x =1) + P(x = 2)$

We have:

$P(x = 0) = 0.2725$

$P(x = 1) = ^8C_1* (15\%)^1 * (1 - 15\%)^{8-1}$

$P(x = 1) = 8* (0.15) * (1 - 0.15)^7$

$P(x = 1) = 0.3847$

$P(x = 2) = ^8C_2* (15\%)^2 * (1 - 15\%)^{8-2}$

$P(x = 2) = 28* (0.15)^2 * (1-0.15)^6$

$P(x = 2) = 0.2376$

So:

$P(x\le 2) = P(x = 0) + P(x =1) + P(x = 2)$

$P(x \le 2) = 0.2725 + 0.3847 + 0.2376$

$P(x \le 2) = 0.8948$

4 0

3 years ago

Use long division to find the value of 1,875÷15.

SashulF [63]

Answer:

125

Step-by-step explanation:

1875 / 15 = 125

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

4 0

3 years ago

Read 2 more answers

Assume that you want to replace your sailboat with a larger one in 3 years. To save for a

Darina [25.2K]

Answer: $11,600

Step-by-step explanation:

$2000 * 10% = $200

y = 200x + $2,000

12 * 4 = 48

48 = x

y = 200(48) + $2,000

y = $9,600 + $2,000

y = $11,600

8 0

3 years ago

What is the GFC40 and28

Butoxors [25]

Step-by-step explanation:

40 = 2 * 2 * 2 * 5

28 = 2* 2 * 7

So now

The GCF = 2 * 2 = 4

7 0

3 years ago

Read 2 more answers

62839393838 times x equals 1232653486

Vikki [24]

Answer:

x= 616326743 / 31419696919

Step-by-step explanation:

62839393838x = 1232653486

Let's solve your equation step-by-step.

62839393838x=1232653486

Step 1: Divide both sides by 62839393838.

62839393838x / 62839393838 = 1232653486 / 62839393838

x= 616326743 / 31419696919

3 0

3 years ago