Ask question

Ask question

All categories

2 years ago

5

Mathhhhhhhhhh helppp failing ughh

1 answer:

hichkok12 [17]2 years ago

5 0

A it is impossible because the line can only impact at a max of 2 points

You might be interested in

Algebraically find three consecutive positive integers such that the square of the first is equal to the third.

dexar [7]

Your numbers are 2, 3, 4.

The three consecutive numbers are x, x+1, x+2
The square of the first equals the third so x^2=x+2
Solve this quadratic as x^2-x-2=0
Factor into (x+1)(x-2)=0
So your answers are x=-1 and x=2
Since the question says they’re positive integers, use x=2
So the numbers are 2, 3, 4

7 0

3 years ago

HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

kap26 [50]

<u>Part a</u>

Setting $x=6$ , $y=7.9(1.02)^6 \approx \boxed{8.9}$

<u>Part b</u>

Setting $x=14$ , $y=7.9(1.02)^{14} \approx \boxed{10.4}$

7 0

1 year ago

Help it time and i have no answer left on branly

Marina CMI [18]

Answer:

4/3

10/3

24/3

...........

3 0

2 years ago

Read 2 more answers

−0.63p − 5.04 + 3.57 = 7.05 + 2.21p?

grandymaker [24]

Answer:

p = -3

Step-by-step explanation:

−0.63p − 5.04 + 3.57 = 7.05 + 2.21p

−0.63p − 1.47 = 7.05 + 2.21p (add 0.63p to both sides)

− 1.47 = 7.05 + 2.21p + 0.63p

− 1.47 = 7.05 + 2.84p (subtract 7.05 from both sides)

− 1.47 - 7.05 = 2.84p

-8.52 = 2.84p (rearrange)

2.84p = -8.52 (divide both sides by 2.84)

p = -8.52 / 2.84

p = -3

6 0

2 years ago

Read 2 more answers

Suppose a bag contains many marbles, 54% of which are purple. You draw 5 marbles from the bag with replacement.

dolphi86 [110]

Part A

Use the binomial probability distribution formula.

p = 0.54 = probability of getting a purple marble

n = 5 = sample size

x = 2 = number of purple we want to get

$P(x) = \frac{n!}{x!(n-x)!}*p^x*(1-p)^{n-x}\\\\P(2) = \frac{5!}{2!(5-2)!}*0.54^2*(1-0.54)^{5-2}\\\\P(2) = 10*0.54^2*0.46^3\\\\P(2) = 0.283831776\\\\$

The $\frac{n!}{x!(n-x)!}$ portion is from the nCr combination formula. The exclamation marks indicate a factorial.

Alternatively, you could use Pascal's Triangle for that portion.

<h3>Answer: 0.283831776</h3>

This decimal value is exact. Round it however you need to.

============================================================

Part B

To find the expected value, aka the mean, we multiply the sample size and probability of getting a purple marble on any single selection.

n*p = 5*0.54 = 2.7

<h3>Answer: 2.7</h3>

6 0

1 year ago