NEED HELP WITH 2 and 3

Mathematics

1 answer:

Bess [88]2 years ago

7 0

On 2 the equation will be 5,750-500x when you graph that on the y-axis put go up 5,750 and over 0 from tag point go down 500 and to the right 1.. And on b it will be 3,500-250x on the y-axis go up 3,500 and over 0 from that point go down 250 and over to the right 1..

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According to data from the state blood program, 40 percent of all individuals have group A blood. If six individuals give blood,

Serjik [45]

Answer: 0.27648

Step-by-step explanation:

Given : The proportion of all individuals have group A blood : p=0.040

Total individuals give blood : n= 6

Let X be the number of individuals have group A blood.

Since all individual are independent of each other.

$X\sim Bin(n=6, p=0.40)$

Formula : $P(X=x)=^nC_xp^x(1-p)^{n-x}$ , where n= sample size , p = probability of getting success in each trial.

The probability that exactly three of the individuals have group A blood. :

$P(x=3)= ^6C_3(0.40)^3(1-0.4)^3\\\\= \dfrac{6!}{3!3!}\times(0.40)^3(0.60)^3\\\\=0.27648$

The probability that exactly three of the individuals have group A blood. is 0.27648

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3 years ago

What is the slope of 6,2 and -6,6

S_A_V [24]

12, 4
take the first number together than the last ones and just find the difference

4 0

3 years ago

Read 2 more answers

An arithmetic sequence with a third term of 8 and a constant difference of 5.

larisa [96]

An arithmetic sequence (a_n) is as follows:

$a_1\\a_2=a_1+d\\a_3= a_1+2d\\a_4=a_1+3d,...$ where $a_1$ is the first term and d is the constant difference,

thus, we see that the n'th term of an arithmetic sequence is $a_n=a_1+(n-1)d$

in our particular case d=5, the third term is 8, so we have:

$a_3=8=a_1+2\cdot5\\\\8=a_1+10\\\\a_1=-2$

and the general term is $a_n=-2+5(n-1)$ ,

Answer: first term is -2, n'th term is -2+5(n-1)

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2 years ago

Please help. I’ll mark you as brainliest if correct!

chubhunter [2.5K]

Answer:

$\boxed{\sf \ \ \ f^{-1}(x)=1+\sqrt{x} \ \ \ }$