SOMEONE PLS HELP ASAP

Mathematics

2 answers:

Viefleur [7K]2 years ago

8 0

Answer:

The answers are as follows:

After reading and comparing the values, we get the following answer.

Number of students with blue eyes blond hair are 42.

Difference of the number of students with gray eyes and brown hair and number of students with green eyes and black hair is $11-5=6$

Number of students with gray eyes brown hair are 5.

Difference of the number of students with green eyes and blond hair and the number of students with gray hair is $35-21=14$ because only gray hair marginal total is 35.

harkovskaia [24]2 years ago

5 0

42---number of students with blue eyes blond hair
5--students with grey eyes brown hair
6--difference of the number of students with grey eyes and brown hair ...
14-- with the last one standing

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sesenic [268]

As stated in (i), the equation of the line is: ln y = -0.015x + .26
(By the way, I checked your answers for parts (i) and (ii) and they are both correct)

(iii)
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ln (1.1) = -0.015x + .26
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3 years ago

What is the fourth term in the binomial expansion (a+b)^6)

Dafna11 [192]

Answer:

$20a^3b^3$

Step-by-step explanation:

Binomial Series

$(a+b)^n=a^n+\dfrac{n!}{1!(n-1)!}a^{n-1}b+\dfrac{n!}{2!(n-2)!}a^{n-2}b^2+...+\dfrac{n!}{r!(n-r)!}a^{n-r}b^r+...+b^n$

Factorial is denoted by an exclamation mark "!" placed after the number. It means to multiply all whole numbers from the given number down to 1.

Example: 4! = 4 × 3 × 2 × 1

Therefore, the fourth term in the binomial expansion (a + b)⁶ is:

$\implies \dfrac{n!}{3!(n-3)!}a^{n-3}b^3$

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