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2 years ago

-2x + 11 + 6x What is the answer?

Mathematics

1 answer:

kicyunya [14]2 years ago

4 0

Answer: 11 + 4x

Step-by-step explanation: Just add -2x to 4x and then its a simplified as it can get. Hope this helps! Please mark me brainliest. Have an amazing day

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Peppermint Patty is very discouraged about her chances on a 10-item true-false quiz. If she randomly answers each question, what

Alona [7]

We can solve this problem using the binomial probability equation:

P = [n! / (n – r)! r!] p^r q^(n – r)

where the variables are:

n = total number of questions = 10

r = number of correct = at least 5

p = probability of success = 0.5

q = probability of failure = 0.5

So what we have to do is to calculate for P for r = 5 to 10

when r = 5

P = [10! / (10 – 5)! 5!] 0.5^5 0.5^(10 – 5)

P = 0.246

when r = 6

P = [10! / (10 – 6)! 6!] 0.5^6 0.5^(10 – 6)

P = 0.205

when r = 7

P = [10! / (10 – 7)! 7!] 0.5^7 0.5^(10 – 7)

P = 0.117

when r = 8

P = [10! / (10 – 8)! 8!] 0.5^8 0.5^(10 – 8)

P = 0.044

when r = 9

P = [10! / (10 – 9)! 9!] 0.5^9 0.5^(10 – 9)

P = 9.766 x 10^-3

when r = 10

P = [10! / (10 – 10)! 10!] 0.5^10 0.5^(10 – 10)

P = 9.766 x 10^-4

So the probability that her score will be at least 5 is:

P (r≥5) = 0.246 + 0.205 + 0.117 + 0.044 + 9.766 x 10^-3 + 9.766 x 10^-4

P (r≥5) = 0.623

So about 62.3% chance.

You can do the same for the other item quiz, just set the value of n

7 0

2 years ago

Answer this please! The question and answers options are on the picture!

Makovka662 [10]

Answer:

WHAT PICTURE

Step-by-step explanation:

7 0

2 years ago

5280x5 = ? record the product using expanded form to help

kotegsom [21]

5280•5= (5000•5) + (200•5) + (80•5) + (0•5) = 26400.

6 0

3 years ago

A solid right pyramid has a square base. The length of the

Wittaler [7]

Answer:

The volume of the pyramid is 16 cm³.

Step-by-step explanation:

The volume of squared-base pyramid is given by the formula:

$V=A\times \frac{h}{3}$

Here,

V = volume of the squared-base pyramid

A = area of the square base

h = height of the pyramid.

The information provided is:

a = side of square = 4 cm

h = 3 cm

Compute the area of the square base as follows:

$A=a^{2}\\=4^{2}\\=16\ \text{cm}^{2}$

Compute the volume of squared-base pyramid as follows:

$V=A\times \frac{h}{3}$

$=16\times \frac{3}{3}\\\\=16$

Thus, the volume of the pyramid is 16 cm³.

7 0

2 years ago

Dividir 3 litros de leite entre 4 crianças.

vekshin1

3/4=3/4
Cada criança recebe 3/4 litros de leite.

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2 years ago