Which type of sample data do we need if we want to estimate a population percentage (proportion) with a confidence interval? Quantiative Data Categorical Data

Answer:

1000000

Step-by-step explanation:

Answer: 1000000

Step

no

step

Answer:

X=5

Step-by-step explanation:

Answer:

x = -13/4

Step-by-step explanation:

2x + 1 : 4x + 13 = "number of purple tiles" : "number of white tiles"

We know that "of the tiles" are purple, so we can also write:

(number of purple tiles) / (number of total tiles) =

Combining these two equations, we get:

(2x + 1) / (2x + 1 + 4x + 13) =

Simplifying the denominator, we get:

(2x + 1) / (6x + 14) =

Cross-multiplying, we get:

(2x + 1) = (6x + 14)

Expanding the brackets, we get:

2x + 1 = 6x + 14

Subtracting 2x from both sides, we get:

1 = 4x + 14

Subtracting 14 from both sides, we get:

-13 = 4x

Dividing both sides by 4, we get:

x = -13/4

However, since x represents the number of tiles, it doesn't make sense for it to be negative. Therefore, there must have been a mistake in the question or my working so I'm not entirely sure. Hopefully the work can help out a little though.

Answer:

\(\log _b\left(\sqrt{\frac{57}{74}}\right)\) is equivalent to  \(\frac{1}{2}\left(\log \:_b\left(57\right)-\log \:_b\left(74\right)\right)\).

Hence, option 'c' is true.

Step-by-step explanation:

Given the expression

\(\log _b\left(\sqrt{\frac{57}{74}}\right)\)

Rewrite as

\(=\log _b\left(\left(\frac{57}{74}\right)^{\frac{1}{2}}\right)\)

\(\mathrm{Apply\:log\:rule\:}\log _a\left(x^b\right)=b\cdot \log _a\left(x\right),\:\quad \mathrm{\:assuming\:}x\:\ge \:0\)

\(=\frac{1}{2}\log _b\left(\frac{57}{74}\right)\)

\(\mathrm{Apply\:log\:rule}:\quad \log _c\left(\frac{a}{b}\right)=\log _c\left(a\right)-\log _c\left(b\right)\)

\(=\frac{1}{2}\left(\log _b\left(57\right)-\log _b\left(74\right)\right)\)     ∵ \(\log _b\left(\frac{57}{74}\right)=\log _b\left(57\right)-\log _b\left(74\right)\)

Therefore,

\(\log _b\left(\sqrt{\frac{57}{74}}\right)\) is equivalent to  \(\frac{1}{2}\left(\log \:_b\left(57\right)-\log \:_b\left(74\right)\right)\).

Hence, option 'c' is true.

Answer: (x+1)(x+4) is the solution

Step-by-step explanation:

Use the sum-product pattern

Common factor from the two pairs

Rewrite in factored form

Answer:

(x+1)(x+4)

Step-by-step explanation:

x²+5x+4

x²+4x+x+4

x(x+4)+1(x+4)

(x+1)(x+4)

Answer:

C

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just don’t want to waste my time in case you don’t want me to :)

The number of additional gifts Jeff can buy with the remaining cost is 1.

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

As per the given,

Total cost = $15 + $20 = $35

Total spent = $50

Remaining = $50 - $35 = $15

Since one gift cost $10

Thus, 15/10 = 1.5 since the number of gifts will be the whole number so it will be round to bottom 1 gift.

Hence "With the money still available, Jeff can purchase 1 more present".

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Answer:

17 seats per row

Step-by-step explanation:

We Know

68 seats in 4 rows

How many seats per row?

We Take

68 ÷ 4 = 17 seats per row

So, there are 17 seats per row.

The answer is:

Work/explanation:

Find the number of seats per row by dividing the number of seats in all 4 rows by the number of rows:

\(\sf{68\div4=17}\)

There are 17 seats per row.

The fifth term of the expansion of (x − 5)⁶ is found as:  937x².

The Pascal triangle has a lengthy history. It may be traced back to India's Pingala people in the second century BC, who also knew various other binomial formulas at the same time.

Using the binomial series:

(n C r) = n! / (r1(n - r)!

Given equation: (x − 5)⁶

On comparing:

a = x, b = -5 and n = 6

x⁶ + (6C1).x⁶.(-5)¹ + (6C2).x⁴.(-5)² + (6C3)x⁴(-5)³ + (6C4).x²(-5)⁴ + (6C5).x¹.(-5)⁵ + (-5)

Using binomial calculator to solve the expression as;

x⁶ - 30x⁵ + 375x⁴ - 2500x³ + 937x² - 1870x + 15625

Thus, the fifth term of the expansion of (x − 5)⁶ is found as:  937x².

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Answer:

290 cm2

Step-by-step explanation:

The midpoint has coordinates (19,19) as per the midpoint formula.

The statement is false.

The statement is false. The midpoint of the segment joining two points is determined by taking the average of their x-coordinates and the average of their y-coordinates. In this case, the two given points are (0,0) and (38,38).

To find the x-coordinate of the midpoint, we take the average of the x-coordinates of the two points:

(x1 + x2) / 2

= (0 + 38) / 2

= 38 / 2

= 19

Therefore, the x-coordinate of the midpoint is 19, which matches the statement. However, to determine if the statement is true or false, we also need to check the y-coordinate.

To find the y-coordinate of the midpoint, we take the average of the y-coordinates of the two points:

(y1 + y2) / 2

= (0 + 38) / 2

= 38 / 2

= 19

The y-coordinate of the midpoint is also 19. Therefore, the coordinates of the midpoint are (19,19), not 19 as stated in the statement. Since the midpoint has coordinates (19,19), the statement is false.

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Step-by-step explanation:

which absolute value equations represents the graph

Answer:

29.76

Step-by-step explanation:

sorry if incorrect

Answer:

tanother way of writing this is the cube root of3x+5

Answer:

It's the digit 3.

Step-by-step explanation:

Since all digits from 33 to 38 are digits not less than 3, it follows that in the result there will be at least one digit bigger than 3. Since 33 to 38 represent a set with six numbers, we can conclude that the product of those numbers must have at least six digits to the left of the decimal, which is the ones place. Therefore, the digital 3 gets into the ones place.

The number of possible k-lists (x₁, x₂, ..., xₙ) where each xₙ is a positive integer and 1 ≤ x₁ ≤ x₂ ≤ · · · ≤ xₙ ≤ n is given by the formula n choose k, or (n choose k) = n!/(k!(n-k)!)

First, let's consider the case when k = 1. In this case, there is only one integer in the list, and it must be a positive integer between 1 and n inclusive. Therefore, there are n possible k-lists when k = 1.

We can continue this process for larger values of k.

In general, the number of possible k-lists is the number of ways we can choose k positive integers between 1 and n inclusive such that the first integer is less than or equal to the second integer, the second integer is less than or equal to the third integer, and so on up to the kth integer being less than or equal to n.

Using the formula for combinations, this is equal to n choose k, or (n choose k) = n!/(k!(n-k)!), where n! is the factorial of n.

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The sums of vectors are:

u + v =   <4, 1>  this is true.

v + w = <1, -3> this is false.

w + u = <-6, 1> this is true.

Remember that the sum between two vectors <a, b> and <c, d> is:

<a, b> +  <c, d> = <a + c, b + d>

The vectors in the graph are:

w = <-4, -3>

v = <6, -3>

u = <-2, 4>

Then the sums are:

u + v = <6, -3> + <-2, 4>

        = <6 - 2, -3 + 4> = <4, 1>  this is true.

v + w = <6, -3> + <-4, -3> = <6 - 4, -3 - 3> = <2, -6>  the second sum is false.

w + u = <-4, -3> + <-2, 4> = < -4 - 2, -3 + 4> = <-6, 1> so the last sum is true.,

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The equation of the line passing through the two yellow points in slope-intercept form is y = 3x - 21.

Since we only have two points, we can use the point-slope form of a linear equation to find the equation of the line passing through the two points.

The point-slope form of a linear equation is given by:

y - y1 = m(x - x1)

where (x1, y1) is one of the points on the line, m is the slope of the line.

Let's use the point (8, 3) and (10, 9):

\(m = (y2 - y1) / (x2 - x1)\\\\m = (9 - 3) / (10 - 8)\\\)

m = 3

Using the slope-intercept form of a linear equation, we can write:

\(y - y1 = m(x - x1)\\y - 3 = 3(x - 8)\)

Simplifying the above equation, we get:

y - 3 = 3x - 24

y = 3x - 21

Therefore, the equation of the line passing through the two yellow points in slope-intercept form is y = 3x - 21.

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Answer:

Step-by-step explanation:

\(a = b \times h \\ \\ a = 9 \: \: {yd}^{2} \\ b = 6 \: \: yd \\ \\ 9 = 6 \times h \\ h = \frac{9}{6} \\ h = 1.5 \: \: yd\)

I hope that is useful for you :)

Answer:

210 dollars left

Step-by-step explanation:

Answer:

he has 210 dollars left

Step-by-step explanation:

250+35=285

285-75=210

The acceleration of the particle at t = 36 seconds is 11/8 meters/s2

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt

using the second derivative of a and to find the time at 36 seconds is

a(36)=v'(36)=\(\frac{v(40)-v(32)}{40-32} \\\)

=7-(-4)÷8

a(36)=11/8 meters/s^2

The Trapezoidal Rule:

This is a rule that defines the area under the curves by dividing the total area into smaller trapezoids rather than using rectangles.

The formula for the trapezoidal rule:

T n = 1 2 Δ x ( f ( x 0 ) + 2 f ( x 1 ) + 2 f ( x 2 ) + ⋯ + 2 f ( x n − 1 ) + f ( x n ) )

∫v(t) dt is the particle’s change in position in meters from time

t = 20 seconds to time 40 t = seconds.

\(\int\limits {v(t)} \, dx =\frac{v(20)+v(25)}{2}*5+\frac{v(25)+v(32)}{2} *7+\frac{v(32)+v(40)}{y} *8 \\\\=\frac{-18*5}{2} +\frac{-12*7}{2} +\frac{24}{2} \\\\=\frac{-90}{2} +\frac{-84}{2} +\frac{24}{2} \\\\=-45-42+12\\=-75\)

∫v(t) dt=-75meters.

For 0 ≤t≤40, must the particle change direction in any of the subintervals indicated by the data in the table

since v(t) is differentiable, v(t) is continuous.

Particle changes direction is v(t) changes sign.

The particle must change direction in (8,20) and (32,40)

v(8)=5>0 and v(20)=-10<0 for this v(t) changes sign for same C for8<C<20.

v(32)=-4<0 and v(4)=7>0 for this v(t) changes sign for some d for 32<d<40

the above is true due to the Intermediate Value theorem.

since v(t) changes sign in (8,20) and in (32,40)

The particle changes sign in (8,20) and in (32,40)

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In question 27, the price elasticity of supply for shampoo is given as 20, and the price of shampoo increases by 0.7%. The expected change in the quantity of shampoo supplied can be determined using the concept of price elasticity of supply. However, the specific percentage change in quantity supplied is not provided, so a precise answer cannot be given based on the given information.

In question 20, an inferior good in which the income effect dominates the substitution effect is referred to as a Giffen good. It is not classified as a normal good, luxury good, mass-produced good, or favored good.

In question 30, the cross elasticity of demand measures the responsiveness of the quantity demanded of a particular good to changes in the prices of its substitutes and complements. The correct answer is that the cross elasticity of demand measures the responsiveness to changes in both substitutes and complements.

In question 27, without the specific percentage change in quantity supplied, we cannot determine the exact outcome based on the given information. The price elasticity of supply of 20 suggests that the quantity supplied is highly responsive to changes in price, but the specific percentage change in quantity supplied cannot be calculated without additional data.

In question 28, the relationship between pasta being a Giffen good and other characteristics is not specified. While pasta being a Giffen good indicates that the quantity demanded increases as the price increases, it does not imply whether pasta is a normal good, luxury good, or how price changes affect quantity demanded.

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The number line represents a discrete random variable. The reason for this is that the variable can only take on the values that are represented by the dots or points on the number line. These values cannot be broken down into smaller units or decimals.

A random variable is a variable that can take on different values, depending on the outcome of a random event.

A discrete random variable is a random variable that can only take on certain values.

A continuous random variable, on the other hand, can take on any value within a given range.

The given number line has dots or points that represent the possible values that the random variable can take on.

The dots or points on the number line suggest that the random variable is discrete.

Therefore, the number line represents a discrete random variable. The reason for this is that the variable can only take on the values that are represented by the dots or points on the number line. These values cannot be broken down into smaller units or decimals.

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Answer: Numbers between 5 and 16 are:-

6, 7, 8, 9, 10, 11, 12, 13, 14 , 15 and 16.

Therefore, total number of outcomes =11

Numbers inclusive between 5 and 16 which are divisible by 2 or 3 are-

6 , 8, 9 ,10 ,12, 14 and 15.

Number of favourable outcomes = 7

Therefore, probability of getting a number which is either a multiple of 2 or 3 is:

p(e) = \frac{7}{11}p(e)=

11

7

HENCE, THE REQUIRED PROBABILITY IS = 7 / 11.

Step-by-step explanation: does this help?

The area of the parallelogram with vertices (0,0), (3,6), (8,2), and (11,8) is 0 square units.

To find the area of a parallelogram with given vertices, we can use the formula:

Area = |(x1y2 + x2y3 + x3y4 + x4y1) - (y1x2 + y2x3 + y3x4 + y4x1)| / 2

Given the vertices:

A = (0, 0)

B = (3, 6)

C = (8, 2)

D = (11, 8)

We can plug these coordinates into the formula to calculate the area:

Area = |(0*6 + 3*2 + 8*8 + 11*0) - (0*3 + 6*8 + 2*11 + 8*0)| / 2

Area = |(0 + 6 + 64 + 0) - (0 + 48 + 22 + 0)| / 2

Area = |70 - 70| / 2

Area = 0 / 2

Area = 0

Therefore, the area of the parallelogram with vertices (0,0), (3,6), (8,2), and (11,8) is 0 square units.

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Answer:

c= ℝ

Step-by-step explanation:

8(c-9)=6(2c-12)-4c

Distribute left side.

8*c+8*-9=6(2c-12)-4c

8c-72=6(2c-12)-4c

Distribte right side.

8c-72=6*2c+6*-12-4c

8c-72=12c-72-4c

Combine like terms.

8c-72=8c-72

Since the two sides are exactly the same, this means that any number for c will satisfy the equation.

Therefore, c= ℝ (all real numbers)

Answer:

y=-5

Step-by-step explanation:

First, find the slope by doing y2-y1/x2-x-1

-5-(-5)/2-0 = 0

Then use any of the equations with the slope being x to find the y intercept.

-5=0x+b

b=-5

Answer:

k = 20

can i have brainliest

Step-by-step explanation:

Answer:

When the pans contain exactly the same mass the beam is in balance. ... You can place an object in one pan and standard weights in the other to find what the object weighs. Here balance scales are used to show that the box "x" has a mass of 4

Answer:

a balances measure mass, while scales measure weight. So if you bring a balance and a scale to the moon, the balance will accurately give you the mass of, say, a moon rock, whereas the scale will be affected by the gravity. A balance determines mass by balancing an unknown mass against a known mass.

Step-by-step explanation:

its right believe me and mark brainliest plz

Answer:

14:35

Step-by-step explanation:

Answer:

14:49 boys 35:49 girls

Step-by-step explanation:

35+14=49