a 95% confidence interval is found to be (24, 30). The sample standard deviation is 7.5, and the sample size is 25. If you wanted a smaller interval what could you do?
A. increase the confidence level to 99.7%.
B. increase the sample size to 36.
C. decrease the sample size to 20.
D. None of these.

Answer:

Pythagorean Thereom is the method in which finds the lengths of each side of a triangle. The formula is [tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]

Each letter in the formula defines a certain side of a triangle.

The picture shown shows the sides of each triangle and how they correspond with the formula.

This helps solve triangles to find its sum, as well as, to figure out a side depending on what is given.

Answer:

It changed by -15 FT

Explanation:

3 x 5 + 15

Answer:

result is x^2+3x-8 sorry for the photo quality

Answer:

6

Step-by-step explanation:

Answer:

Step-by-step explanation:

Yes I would be glad to help you

Answer:

Which sum or difference is equivalent to the following expression?

5 minus 3 x over 5

A. 1 + three-fifths

B. 1 + 3 x over 5

C. 1 – 3 x over 5 *My answer

D. 25 – 15x

I took the test and I got it right

Answer:

[tex]x=-1 ,-2[/tex]

Step-by-step explanation:

Quadratic Formula: [tex]x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}[/tex]

Step 1: Define

3x² + 9x + 6 = 0

a = 3

b = 9

c = 6

Step 2: Substitute and Evaluate

[tex]x=\frac{-9 \pm \sqrt{9^2-4(3)(6)} }{2(3)}[/tex]

[tex]x=\frac{-9 \pm \sqrt{81-72} }{6}[/tex]

[tex]x=\frac{-9 \pm \sqrt{9} }{6}[/tex]

[tex]x=\frac{-9 \pm 3 }{6}[/tex]

[tex]x=\frac{3(-3 \pm 1) }{6}[/tex]

[tex]x=\frac{-3 \pm 1}{2}[/tex]

[tex]x=\frac{-2}{2} ,\frac{-4}{2}[/tex]

[tex]x=-1 ,-2[/tex]

Answer:

y = -3x + 7 or y + -3x - 2

Step-by-step explanation:

hope this helps! brainliest please.

Answer:

for the top its the first one

Step-by-step explanation:

a function is when a number has one corresponding number (some say exponent or other words)

A relation may or may not represent a function

The relations that represent a function are: (a) first ordered pair and (c) the linear graph

For an ordered pair to be a function, each x values must not point to several y-values

For a graph to represent a function, it must pass the vertical line test.

Based on the above highlights, the relations that represent a function are:

Read more about relations and functions at:

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Answer:

Yes, will be

[tex](3x - 2)2 = 6x - 2 = 4x[/tex]

Because the 4x it doesn't t affect the 6x and the 6x is

[tex]6 \times x[/tex]

So the result will be 4x

Answer:

-9x^2 + 16x - 4

Step-by-step explanation:

Step-by-step explanation:

13) +1

14). - 1

15). +1

16). - 1

17). +1

18). Negetive_positive

19 + X > 26

X > 7

To break your record you need more than 7 digs

Answer:

x = 25

Step-by-step explanation:

3x + 4x + 5 = 180

        7x + 5 = 180

              - 5     - 5

              7x = 175

                x = 25

Answer: 0.23

Step-by-step explanation:

Given that:

Percentage population of males = 77% = 0.77

Hence,

Percentage that aren't male = ( 1 - 0.77) = 0.23

P(males) = 0.77

Hence,

P(non-males) = 1 - 0.77 = 0.23

Answer:

simply no

Step-by-step explanation:

Answer: Hypothesis is "It is hot"

The general form of a conditional is "If hypothesis, then conclusion"

You may see it as "If P, then Q". P and Q are placeholders

In this case, the conclusion is "It is summer".

Answer:

7 10 11 12 13 14 17

Step-by-step explanation:

this

is

the answer

7, 10, 11, 12, 13, 14, 17 are the 7 numbers  that have a range of 10 and a mean of 12.

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.

The range of a list of numbers is the difference between the largest and smallest values of that list of numbers.

The mean is the sum of the observations  to the total number of observations.

The seven numbers are 7, 10, 11, 12, 13, 14, 17

Range =17-7=10

Mean=7+10+11+12+13+14+17/7

=84/7

=12

Hence,  7, 10, 11, 12, 13, 14, 17 are the 7 numbers  that have a range of 10 and a mean of 12.

To learn more on Statistics click:

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Answer:

32.7

Step-by-step explanation:

Two doesn't round up seven, so it just gets knocked off the end.

Answer: C. (8, 16, 4)

Step-by-step explanation:

Given the following:

Let:

Trucks = T ; Cars = C ; SUVs = S

T =0.5(C + S) - 2 - - - (1)

C = 2T - - - (2)

T + C + S = 28 - - - (3)

T = 0.5(2T + S) - 2

T = T + 0.5S - 2

0 = 0.5S - 2

0.5S = 2

S = 2/0.5

S = 4

From T + C + S = 28

C = 2 T ; S = 4

T + 2T + 4 = 28

3T = 28 - 4

3T = 24

T = 24/3

T = 8

From T + C + S = 28

8 + C + 4 = 28

12 + C = 28

C = 28 - 12

C = 16

Hence, (T, C, S) = (8, 16, 4)

Step-by-step explanation:

4* 9* 5

= 180

I think that is the answer

Hope it helps :)

The number represented by 2² × 3² × 5  is 180.

Prime factorisation is factoring a given composite number in terms of prime numbers multiplied with each other.

Prime numbers are those numbers which are only divisible by 1 and the number it self.There are 25 prime numbers from 1 to 100 and 47 prime numbers from 1 to 200.

According to the given question the number represented by prime factorisation 2² × 3² × 5 = 4 × 9 × 5 which is

= 36 × 5

= 180.

learn more about prime factorisation here :

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Answer:

#2

Step-by-step explanation:

Answer:

mm

Step-by-step explanation:

,l

Answer:

6 apples ofc

Step-by-step explanation:

Answer:

When b = 28 and c = 4, then a = 56

Step-by-step explanation:

We need to write the equation first

This is an example of a combined variation

if a varies directly as b and inversely as c;

then a = bk/c

where k is the constant of proportionality

We find k first;

16 = (12 * k)/6

k = (6 * 16)/12 = 8

We now want to find a

a = kb/c

a = (8 * 28)/4 = 7 * 8 = 56

Answer:

-26/5, -5.17, root 33, 37/6

Step-by-step explanation:

Answer:

[tex]-5.17, -\frac{26}{5}, \sqrt{33} , \frac{37}{6}[/tex]

Step-by-step explanation:

         = -5.17

26 / 5 = -5.2

[tex]\sqrt{33}[/tex]     = 5.745

37/6    = 6.167

Answer:

[tex]\boxed{x=-25}[/tex]

Step-by-step explanation:

[tex]\frac{2}{7} (x+4)=-6[/tex]

→ Multiply everything by 7 to get rid of the fraction

[tex]2(x+4)=-42[/tex]

→ Expand the bracket

[tex]2x+8=-42[/tex]

→ Minus 8 from both sides to isolate 2x

[tex]2x=-50[/tex]

→ Divide both sides by 2 to isolate x

[tex]x=-25[/tex]

Answer:

Model is

b = 115m + 65

The slope represents the amount of balance offset per month

Step-by-step explanation:

Here, we want to model an equation.

The equation to model will be in the form;

y = mx + c

we have the following points to consider

The points are in the form;

(number of months, balance)

(m , b)

So the points we have are;

(4,755) and (5,640)

So the slope will be ;

(y2 -y1)/(x2-x1) = (755-640)/(5-4) = 115

So the equation will be;

b = am + c

where a is the slope and c is the y intercept

we already have the slope

so equation becomes;

b = 115m + c

let’s get the y-intercept

we can get the y-intercept by any of the points;

That would be; let’s use (5,640)

640 = 5(115) + c

640 = 575 + c

c = 640 -575

c = 65

So the equation of the model is;

b = 115m + 65

The slope represents the balance per month

Answer:

Equation is (b+7)/2=14

Solve, b=21

Solution: Imani started with 21 boxes

Step-by-step explanation:

Answer:

1/2 that is the right answer

Answer:

it's a 1 in 6 chance/possibility