Find the value of x.
PLEASE HELP this test is timed <3

Answer:

1 5/8

Step-by-step explanation:

Answer:

1 and 5/8

Step-by-step explanation:

hdhdbfhfhfvvfvfvfhd

Using the normal distribution and the central limit theorem, it is found that the sample of 36 Great Basin rattlesnakes is more likely to be shorter than 29.65 inches.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For the Sample of 36 Great Basin rattlesnakes:

Then:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{29.65 - 32.3}{0.88}[/tex]

[tex]Z = -3.01[/tex]

For the Sample of 100 Southern Pacific rattlesnakes:

Then:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{29.65 - 32.2}{0.795}[/tex]

[tex]Z = -3.33[/tex]

Due to the higher z-score, the random sample of 36 Great Basin rattlesnakes is at a higher percentile, hence it is more likely to be shorter than 29.65 inches,

To learn more about the normal distribution and the central limit theorem, you can take a look at https://brainly.com/question/24663213

Answer:

I think its 144!!!!!!!!!!!!!!!!!!

Answer:

Diagram 2  (Bottom diagram)

Step-by-step explanation:

The ratio is twice as many (2)

2:1

Answer:

It Is!

Step-by-step explanation:

"For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question because one anticipates variability in students' ages."

Answer:

B: $18.40

Step-by-step explanation:

100% is equal to $16 so 5% would be 16/20 or $0.80 then to get 15% you would multiply $0.80 by 3 which is $2.40. This is the tip. Then do $16 + $2.40 and the total + tip is $18.40. (Double check to make sure I'm correct)

Answer:

I dont know

Step-by-step explanation:

I don’t know

Answer:

y

≤

−

x

−

2

(1)

y

≥

−

5

x

+

2

(2)

First graph the 2 linear functions by intercepts:

a. y1 = - x - 2

Make x = 0 --> y-intercept is -2

Make y = 0 --> x-intercept is - 2

b. y2 = -5x + 2

Make x = 0 --> y-intercept is 2

Make y = 0 --> x-intercept is

2

5

Graphically solve the 2 linear inequalities (1) and (2).

The solution set of (1) is the area below the line y1. Color it.

The solution set of (2) is the area above the line y2. Color it.

The combined solution set of the system is the area commonly shared by the 2 above solution set areas.

graph{-x - 2 [-10, 10, -5, 5]}

graph{-5x + 2 [-10, 10, -5, 5]}

Answer:

the answers are three sides, closed figure and at least two sides the same length

Step-by-step explanation:

The attributes that represent the isosceles triangle should include three sides, a closed figure, and at least two sides of the same length.

In terms of geometry, the isosceles triangle refer to the triangle where it does have two sides of the equal length. Also, it have exactly two sides of equivalent length.

Therefore, we can conclude that The attributes that represent the isosceles triangle should include three sides, a closed figure, and at least two sides of the same length.

Learn more about triangle here: https://brainly.com/question/18986830

Answer:

period.

Step-by-step explanation:

Answer:

A = 200.96 sq ft

Step-by-step explanation:

formula for area of a circle:  A = π·r²

A = (3.14)·(8²)

A = 64·(3.14)

A = 200.96

9514 1404 393

Answer:

  C.  10 units

Step-by-step explanation:

The distance MN can be found using the distance formula.

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((2 -(-4))² +(3 -(-5))²) = √(6² +8²) = √100 = 10

The distance from M to N is 10 units.

Answer:

1) 55 2)60-80 3)95 4)92.5(mean), 92.5 (median), 95 (mode) 5) the outlier greatly offsets the data as it is no where near the other data points.

Step-by-step explanation:

Answer:

Present age

Son: 15

Father: 45

Step-by-step explanation:

Remark

Thank you for the translation. Without it, the problem would be impossible -- at least for me.

Givens

Let the present age of the father = x

Let the present age of the son = y

Solution

x + y = 60

How many years will pass? You could say it's z.

x + z = y                          When z years pass, the son will be his father's present age.

x + z + y + z = 120          when z is added to both their current ages, the result is 120                   Collect like terms

x + y + 2z = 120            

x + y         = 60              Subtract The very first equation

2z = 60                          Divide by 2

z = 60/2                         30 years have passed.

z = 30

x + z = y

x + 30 = y                       Substitute x + 30 for the present y value (the father).

x + x + 30 = 60

2x = 30

x = 15

x + y = 60

15 + y = 60

y = 60 - 15

y = 45

So the son's age right now is 15

The father's age right now is 45

Answer:

First day : 30+20y

Second day : 85 + 17y

Total: 30 + 20y + 85 + 17y  This is the not simplified version.

37y+115 This is the simplified version. Hope this helps!

Step-by-step explanation:

Answer:

Step-by-step explanation:

5x + 9y = -11

3x + 9y  = -3

5x + 9y = -11

-3x - 9y = 3

2x = -8

x = -4

-12 + 9y = -3

9y = 9

y = 1

(-4, 1)

Answer is C

Answer:

384 square meters.

Step-by-step explanation:

Given that a cube has a lateral surface area of 64 square meters, to find the total surface area of the cube, the following calculation must be performed, knowing that the formula to calculate the area of a cube is to multiply by 6 (the number of sides of the cube) the area of one of its sides:

A x 6 = X

64 x 6 = X

384 = X

Thus, the area of the cube is 384 square meters.

Answer:

x>-4

Step-by-step explanation:

I looked it up. Use Mathpapa it's really helpful and free

9514 1404 393

Answer:

  45

Step-by-step explanation:

Only numbers ending in 5 or 0 are divisible by 5. If the units digit is 0, there can be no tens digit that is 1 less. So, the units digit must be 5 and the tens digit must be 4.

The number is 45.

"Rudolph has at leasts $35 to spend at the carnival on Saturday. He spent $10 on lunch and ride tickets are $6 per booklet. What is the minimum number of booklet he can buy?"

Inequalities are expression not separated by an equality sign, They can be used to solve real world problem as well.

The inequality signs are <, >, ≤ and ≥.

≥can be termed as greater than or equal to (This means at least)

≤can be termed as less than or equal to (This means at most)

Given the inequality expression 6g - 10≥ 35. According to Scotts' response as shown;

"Rudolph has at most $35 to spend at the carnival on Saturday. He spent $10 on lunch and ride tickets are $6 per booklet. What is the maximum number of booklet he can buy?"

This is wrong since $35 was the least amount Rudolph has not the maximum amount. The correct response should therefore be:

"Rudolph has at leasts $35 to spend at the carnival on Saturday. He spent $10 on lunch and ride tickets are $6 per booklet. What is the minimum number of booklet he can buy?"

Learn more on inequality here: https://brainly.com/question/11613554

#SPJ1

Answer:

ac

Step-by-step explanation:

Answer: (-2,2)

Step-by-step explanation: -2 - -4 = -2 and 5 - 7 = 2 so I think (-2,2)

Answer: The answer would be 2,2. ummm

Step-by-step explanation:

Answer:

1944....

Step-by-step explanation:

Answer:

Normal distribution

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this question:

Sample of 31 kids, of a normally distributed variable. So, by the Central Limit Theorem, the most appropriated distribution to use is the normal distribution.

Answer:

70

Step-by-step explanation:

formula we will be using: [tex]\sqrt{y} (y+z)[/tex]

7 (7+3)

7 · 10 = 70

Answer:

yes, x does have an exact proportion of y

Step-by-step explanation:

Step-by-step explanation:

[tex] \frac{2}{5x} + \frac{1}{2} = 2 \\ \frac{2}{5x} + \frac{1}{2} - 2 = \frac{4 + 5x - 5x(2)}{5x(2)(1)} \\ = \frac{4 - 5x}{10x} [/tex]

Answer:

x = 15/4

Step-by-step explanation:

Solve for x on calculator

Answer:

The answer is 61.

Step-by-step explanation:

7(9)-2

63-2

61

Answer:61

7*(9)-2

63-2

61

Hope it's useful

Answer:

1.645 feet

Step-by-step explanation:

To solve this you must divide the total length by 5. 8.225/5=1.645. Each board will be 1.645 feet long