You want to obtain a sample to estimate a population proportion. at this point in time, you have no reasonable estimate for the population proportion. you would like to be 95% confident that you esimate is within 1% of the true population proportion. how large of sample size is required?

The equation most closely models the line of best fit for the scatter plot is y = 2.5x

A line is the distance between two points. The equation of a line in point-slope form is given as y =mx + b

where:

m is the slope or rate of change

b is the intercept

Using the coordinate points on the line (3, 5000) and (9, 20000)

Get the rate change(slope)

Slope = 20000-5000/9-3

Slope = 15000/6 = 2500

Determine the y-intercept by substituting

5000 = 2500(3) + b

b = 5000 - 7500

b = -2500

Determine the equation

y = 2.5x - 2.5

Hence the equation most closely models the line of best fit for the scatter plot is y = 2.5x

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263 meters in 6 mins

how many meters can he swim in 15 minutes.

[tex] \frac{236}{6} [/tex]

[tex] = 39.33[/tex]

[tex]39 .33\times 15[/tex]

[tex] = 589.95[/tex]

[tex]nearest \: whole \: number = 590[/tex]

therefore, he can swim 590 meters in 15 minutes.

answer= option C

Answer:

C: 590 meters

Step-by-step explanation:

Let's start by finding Raymond's rate of swimming for meters per minute. We know that he can swim 236 meters in 6 minutes. So let's divide 236 by 6 to find how far Raymond can swim in 1 minute.

236 / 6 = 39.3

So if we know Raymond can swim 39.3 meters in 1 minute, we multiply 39.3 meters by 15, to find how far he can swim in 15 minutes.

39.3 * 15 = 589.995 which is approximately 590 meters. So, we would chose option C: 590.

Answer:

D

Step-by-step explanation:

A boxed area represents 25% of the data set. This means that 70-85 is 25% and 85-100 is 25%

25%+25%=50%

Answer:

7/3

Step-by-step explanation:

-5-9/0-6

-13/-6= 2.167777

y2-y1/x2-x1

Answer:

C

Step-by-step explanation:

calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, - 5) and (x₂, y₂ ) = (6, 9) ← 2 points on the line

m = [tex]\frac{9-(-5)}{6-0}[/tex] = [tex]\frac{9+5}{6}[/tex] = [tex]\frac{14}{6}[/tex] = [tex]\frac{7}{3}[/tex]

Answer:

c

Step-by-step explanation:

the graph shows a constant speed an no change in distance

[tex]v = \frac{lwh}{3} [/tex]

[tex]v = \frac{9 \times 8 \times 9}{3} [/tex]

[tex]v = 216 \: {cm}^{3} [/tex]

[tex]v = lwh[/tex]

[tex]v = 8 \times 7 \times 9[/tex]

[tex]v = 504 \: {cm}^{3} [/tex]

[tex]v = 216 + 504[/tex]

[tex]v = 720 \: {cm}^{3} [/tex]

volume of the rectangular pyramid is 216 cm^3.

volume of the rectangular prism is 504 cm^3.

Total volume is 720 cm^3.

Answer:

[tex]l = 2x + 4[/tex]

Step-by-step explanation:

[tex]p = 6x + 18 \\ w = x + 5 \\ p = 2(l + w) \\ 6x + 18 = 2(l + x + 5) \\ 6x + 18 = 2l + 2x + 10 \\ 2l = 4x + 8 \\ l = 2x + 4[/tex]

Answer:

V=whl=14·13·19=3458m³

Answer:

1152.66 m³

Step-by-step explanation:

Volume = ⅓ × base area × height

= ⅓ × (length × width) × height

= ⅓ × 19 × 14 × 13

= ⅓ × 3458

= 1152.66 m³

Answer:

a is the answer

Step-by-step explanation:

Segment PR is PQ-RE=24-14=10

The probability that a point will be in PR is 10/24 or 0.4166 which rounds up to 0.42

Answer:

i think its 8

Step-by-step explanation:

25 divided by 3 is eight.

Answer:

128 in.

Step-by-step explanation:

1 ft = 12 in

10 x 12 = 120

120 + 8 = 128

128 in.

Answer:

123 degrees

Step-by-step explanation:

180 - 57 = 123

Answer:

33

Step-by-step explanation:

123 is not the answer, on edge

The function (329.99 + 108.78n)/n will represent the cost per year over the lifetime of the unit in terms of the number of years.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have:

Cost for the unit = $329.99

Annual operating cost = $108.78

C(n) represents the cost per year

n represents the number of years

The function can be modelled:

C(n) = (329.99 + 108.78n)/n

Thus, the function (329.99 + 108.78n)/n will represent the cost per year over the lifetime of the unit in terms of the number of years.

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Answer:

2258

Step-by-step explanation:

Answer: 2:1

Step-by-step explanation:

the probability that they get they get the silver cars and someone else gets the white is 2:1

Given that STU is dilated by a scale factor of 2, the resulting rule is (x, y) ⇒ (2x, 2y)

An equation is an expression that shows the relationship between two or more numbers and variables.

Dilation is the increase or decrease in the size of a figure by a scale factor.

Given that STU is dilated by a scale factor of 2, the resulting rule is (x, y) ⇒ (2x, 2y)

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Answer:

Answer is B. X=6, Positive and negitive terms cancel out

Step-by-step explanation:

Answer:

x=6

Step-by-step explanation:

I took the test

Hey ! there

Answer:

Step-by-step explanation:

In this question we are provided with an equation that is 5 ( 3x - 1 ) = 55 and we are asked to find the value of 2x - 2 .

Firstly , we need to find the value of x . So we need to solve the equation .

SOLUTION : -

[tex] \quad \longmapsto \qquad \: 5(3x - 1) = 55[/tex]

Step 1 : Dividing with 5 on both sides :

[tex] \quad \longmapsto \qquad \: \dfrac{ \cancel{5}(3x - 1)}{ \cancel{5}} = \cancel{\dfrac{55}{5} }[/tex]

On cancelling , We get :

[tex] \quad \longmapsto \qquad \:3x - 1 = 11[/tex]

Step 2 : Adding 1 on both sides :

[tex] \quad \longmapsto \qquad \:3x - \cancel{1} + \cancel{1} = 11 + 1[/tex]

On simplifying , We get :

[tex] \quad \longmapsto \qquad \:3x = 12[/tex]

Step 3 : Dividing with 3 on both sides :

[tex] \quad \longmapsto \qquad \: \dfrac{ \cancel{3}x}{ \cancel{3}} = \cancel{ \dfrac{12}{3} }[/tex]

We get ,

[tex] \quad \longmapsto \qquad \: \underline{\boxed{\frak{x = 4}}}[/tex]

→ Therefore , value of x is 4 .

Verifying : -

Now we are verifying whether our answer is wrong or right . So ,

Therefore , our value of x is correct/valid .

We need to find the value of 2x - 2 .

[tex] \quad \longmapsto \qquad \:2x - 2[/tex]

So substituting value of x in it :

[tex]\quad \longmapsto \qquad \:2( \bold{4}) - 2[/tex]

Multiplying 2 with 4 :

[tex]\quad \longmapsto \qquad \:8 - 2[/tex]

Subtracting 2 from 8 :

[tex]\quad \longmapsto \qquad \: \blue{\underline{\boxed{\frak{6}}}} \quad \: \bigstar[/tex]

Answer:

0.15 is the answer

Step-by-step explanation:

Answer:

11033

Step-by-step explanation:

Answer:

(-2, 3)

Step-by-step explanation:

Answer:

1.5 grams

Step-by-step explanation:

This is because if there are five hours there will be 5 half lives due to it decaying 50% every hour. Therefore we would have to dived 48 by 2, 5 times or in other words 48÷[tex]2^{5}[/tex] = 1.5

the answer is A.0 because 0 devided by a number iz zero

Indigo drinks 5 ounces glasses per hour.

A fraction is used to represent the portion/part of the whole thing. It represents the equal parts of the whole.

As in [tex]\frac{4}{5}[/tex]  hour she drinks =10*[tex]\frac{2}{5}[/tex]

                                     = [tex]\frac{20}{5}[/tex]

                                     =4 ounce

She is drinking 4 ounce in [tex]\frac{4}{5}[/tex]  hours,

= [tex]\frac{4}{\frac{4}{5} }[/tex]

= [tex]4*\frac{5}{4}[/tex]

=5 ounce in an hour.

She drink 5 ounces glasses per hour.

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area of a square = s²

s² = 196

s = √196

therefore s = 14cm

hope it helps...!!!

Answer:

D. 14

Step-by-step explanation:

14 x 14

= 196

Hope it helps :))

Answer:

24π cm.

or

75.40 cm to the nearest hundredth

Step-by-step explanation:

The circumference = 2 π r = 2 * π *20

= 40π cm.

Length of the arc = 40 π * 216/360

= 40 * 0.6 *  π

= 24π cm

Answer:

A, D and F

Step-by-step explanation:

cus they are an acute triangle because they are smaller than 90 degrees

Answer:

37

Step-by-step explanation:

You have to divide 74 by 2x to get your equation.

Answer:

37

Step-by-step explanation:

1-2x=74

2-Divide by two on both sides

3-2x÷2= x

4-74÷2=37

Answer:

x= - 4

Step-by-step explanation:

2 * x^2 + 8 * x = x^2 - 16

2 * x^2 - x^2 + 8 * x + 16 = 0

x^2 + 8 * x + 16 = 0

(x + 4) * (x + 4) = 0

x = - 4