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Natalka [10]
3 years ago
14

12

Mathematics
1 answer:
nalin [4]3 years ago
3 0

Answer:

C. Rachaels health care needs will cost less under option 1 if she is able to avoid additional health care costs

Step-by-step explanation:

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I WILL MARK BRAINLIEST!!
Stels [109]

Answer:

9 inches

Step-by-step explanation:

The population is within 6 standard deviations of the mean with a confidence of 99.7 percent, 3 above and 3 below

 

The standard deviation of the sample mean is equal to the population standard deviation divided by the square root of the sample size

population standard deviation = 36

sample size = 144

standard deviation of the sample mean = 36/ sqrt(144)

                                      =36/12

                                        =3

The margin of error is  the number of standard deviations above  the mean * the standard deviations

margin of error  = 3 * 3

                         = 9 inches

8 0
3 years ago
A parabola opens upward. The parabola goes through the point (3, -1), and the vertex is at (2, -2). What are the values of h and
Korolek [52]

The value of a is 1/4 and the value of h and k is (2,-7/4)

<h3>What is a Parabola ?</h3>

A parabola is a u shaped curve. It is a plane curve whose all points are at a fixed distance form a point called focus.

(x-h)² = 4a(y-k)

It is given that the parabola goes through the point (3, -1), and the vertex is at (2, -2).

Therefore
(x -2)² = 4a(y +2)

The parabola passes through the point (3,-1)

(3-2)² = 4*a(-1+2)

1 = 4 a

a = 1/4

Now to determine the value of focus point , (h,k)

(h = 2)

k = - 2 +1/4 = -7/4

Therefore The value of a is 1/4 and the value of h and k is (2,-7/4)

To know more about Parabola

brainly.com/question/4074088

#SPJ1

7 0
2 years ago
Factor out the greatest common factor: 16a3 - 8a5
Delvig [45]
8a³ (2 − 4a²) ; 
________________________________________________
Note:  " 8a³ " is the greatest common factor (GCF).
6 0
3 years ago
A bag contains 8 black marbles, 16 white marbles, 14 red marbles, and 10 green marbles. a marble is drawn at random from the bag
andrew-mc [135]
A 2/3 (67%) chance, which is likely.

There are a total of 48 marbles. If you take out the white marbles, 32 out of the 48 total marbles are not white (32/48). Simplify the fraction and you get 2/3.
8 0
3 years ago
Which method is best to use to solve the equation 4x2−29=0?(1 point)
makkiz [27]

Answer:

i think factoring

Step-by-step explanation:

8 0
3 years ago
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