Which table of values corresponds to the graph below?

On a coordinate plane, a line goes through points (0, negative 2) and (2, 0).

Gigi should buy stickers from World Stationery.

Define Expressions.

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Let's see the information about Stickers4u

Here, pack of 25 stickers is = £2.25

1 sticker cost = 2.25 / 25

                      = £0.09 per sticker

Now, information about World Stationery

Here, pack of 10 stickers is = £1.75

1 sticker cost = 1.75/10

                     = £0.175 per sticker

In this shop, the offer is also there i.e, Buy 1 pack get 1 pack free.

Therefore, Gigi should go with this shop for best possible price.

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The domain of this set is {-1, -6, -4, -9}, which are the x-values of the given coordinates.

The domain of a set of coordinates represents the set of all possible x-values or inputs in a given set. In this case, the set of coordinates is {(-1,0),(-6,-9),(-4,-4),(-9,-9)}. The domain of this set is {-1, -6, -4, -9}, which are the x-values of the given coordinates.

The domain is determined by looking at the x-values of each coordinate pair in the set. In this case, the x-values are -1, -6, -4, and -9. These are the only x-values present in the set, so they form the domain of the set.

The domain represents the possible inputs or values for the independent variable in a function or relation. In this case, the set of coordinates does not necessarily indicate a specific function or relation, but the domain still represents the range of possible x-values that are included in the set.

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The complete question is:

{(−1,0),(−6,−9),(−4,−4),(−9,−9)} What Is The Domain? (Type Whole Numbers. Use A Comma To Separate Answers As Needed.)

Answer:

it's answer is 2a + 6a - 21

Step-by-step explanation:

2a + 3 ( 2a - 7)

= 2a + 6a - 21

Hope it will help :)❤

The conversion factor between kilometers per hour and miles per hour is 1.609344. Therefore, to convert from kmh to mph, we need to divide the speed in kmh by this conversion factor. 80kmh is equivalent to approximately 49.71 mph.

To find the speed in mph, we can use the following formula:

mph = kmh / 1.609344

Plugging in the given speed of 80kmh, we get:

mph = 80kmh / 1.609344

mph = 49.70969538

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Answer:

2/9 yards

Step-by-step explanation:

Felicity cuts 27 equal strips from a 6-yard spool of ribbon. Which expressions show the number of yards for one strip of ribbon

From the above question:

27 equal strips of ribbon = 6 yards of spool

1 strip of ribbon = x yards

Cross Multiply

27 strips of ribbon × x yards = 6 yards × 1 strip of ribbon

x yards = 6/27

x yards = 2/9 yards

Therefore, for 1 strip of ribbon we need 2/9 yards

Since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.

Therefore we reject John's claim.

Here:

we can use 1 sample proportion test to check the claim of John

H₀ : p₀ = 0.4

H₁ : p₀ ≠ 0.4

Test statistic is

z = p - p₀/√p₀(1-p₀)n

Let X be the random variable denoting the number of heads.

Now p = X/n

= 8/50

= 0.16

p₀ = 0.4

1-p₀ = 1-0.4

= 0.6

z = -3.464

since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.

Therefore we reject John's claim.

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Given equation:

use elimination method.

consider the equation (2),

consider the equation (1) and multiply with 2,

now consider the equation (3) and (4) and subract them,

The equation is false.

Therefore the system of the equation has no solution.

the answer is (x,y) = (DNE, DNE)

Answer:

-100 (10*10)- (-10*-10) - (10*10)

Step-by-step explanation:

Answer:

B D E

Step-by-step explanation:

Answer:

20 percent off depends on the original cost: Take the original number and divide it by 10. Double your new number. Subtract your doubled number from the original number. You have taken 20 percent off! For $30, you should have $24.

Step-by-step explanation:

Step-by-step explanation:

-1/4, -1/5, -1/6, -1/7, -1/8, 1/8, 1/7, 1/6, 1/5, 1/4

Answer: 3

Step-by-step explanation:

The length of the segment WY is 6.81 units

From the question, we have the following parameters that can be used in our computation:

Similar triangles

Because the triangles are similar. sp we have the following ratio

9/7 = 8.75/WY

Make WY the subject

So, we have

WY = 7 * 8.75/9

Evaluate

WY = 6.81

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The Chi-square test is a statistical test used to determine if there is a significant difference between observed and expected frequencies in categorical data. In this example, the test is used to assess whether there is a significant difference in the mean breaking strengths of two types of cables.

The Chi-square test of significance is employed when dealing with categorical or nominal data. It compares the observed frequencies with the frequencies that would be expected if the variables were independent. In this case, the breaking strengths of the two cables are the variables of interest.

To perform the test, the first step is to define the null hypothesis (H0) and the alternative hypothesis (Ha). In this example, H0 assumes that there is no difference in the mean breaking strengths of the two cables, while Ha suggests that there is a difference.

Next, the test statistic, denoted by X2 (chi-square), is calculated using the formula X2 = Σ[(O - E)²/E], where O represents the observed frequencies and E represents the expected frequencies under the assumption of independence.

To determine the expected frequencies, we need to estimate the means and variances of the breaking strengths. Here, x = 1925 and sigma = 40 for the first cable, and x = 1905 and sigma = 30 for the second cable.

Once the test statistic is calculated, it is compared to a critical value from the Chi-square distribution with degrees of freedom equal to (r - 1)(c - 1), where r is the number of rows and c is the number of columns in the contingency table. The significance level of 0.01 determines the critical value.

If the calculated X2 value is greater than the critical value, we reject the null hypothesis and conclude that there is sufficient evidence to indicate a difference in the mean breaking strengths of the two cables. Conversely, if the calculated X2 value is less than or equal to the critical value, we fail to reject the null hypothesis and conclude that there is no significant difference.

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Answer: 8 shirts 5 jeans

Step-by-step explanation:

Answer:

The answer is 15.

Step-by-step explanation:

When dividing 225 by 15 you can multiply 15 by 15 and you will get 225.

Answer:

b = 0

Step-by-step explanation:

4b + 6 = 2 – b + 4

Add 1b both side

4b + 6 + 1b = 2 - b + 4 + 1b

5b + 6 = 2 + 4

5b + 6 = 6

Subtract both side by 6

5b + 6 - 6 = 6 - 6

5b = 0

Divide both side by 5, we get

b = 0

Answer:

5/3π or 5.2

Step-by-step explanation:

30 / 360 = x / 20π

then x = 5/3π or 5.2

Answer:

5/3 \(\pi\)

Step-by-step explanation:

30/360 * 2 \(\pi 10\)

1/12 * 2 \(\pi 10\)

20/12 \(\pi\)

5/3 \(\pi\)

Answer:

The Median is 75

Step-by-step explanation:

median is the middle number in a set of given numbers

arranging in order will be

30,64,70,80,90,110

the middle numbers are 70 and 80

Median=80+70/2

=150/2

Median=75

Answer:

\(\frac{1}{36}\)

Step-by-step explanation:

The probability of rolling a 4 is 1/6.

Using the multiplication rule, the required probability is \((1/6)^2=\frac{1}{36}\).

Answer:

z≥-10

Step-by-step explanation

it just is, trust.

Answer:

D. Start Root 47 End Root

Step-by-step explanation:

i took the test ok

a) The probability that A wins if A answers the first question is α / (α + β).

b) The probability that A wins if B answers the first question is βα+β.

a) If A answers the first question, then the game will be over only if A answers the first question correctly, which has a probability of α. If A answers incorrectly, then B gets to answer the next question, and we are in the same situation but with A's and B's roles reversed. Therefore, the probability that A wins in this case is given by:

P(A wins | A answers first) = α + (1 - α)β P(A wins | B answers first)

b) If B answers the first question, then we are in the same situation as in part a) but with A's and B's roles reversed. Therefore, the probability that A wins in this case is given by:

P(A wins | B answers first) = β P(A wins | A answers first) + (1 - β)β P(A wins | B answers first)

We can solve these equations for P(A wins | A answers first) and P(A wins | B answers first) using algebraic manipulation. For example, we can rearrange the equation in part a) to get:

P(A wins | A answers first) = α / (1 - (1 - α)β)

Similarly, we can rearrange the equation in part b) to get:

P(A wins | B answers first) = β / (1 - (1 - β)α)

Note that these probabilities depend on the values of α and β, which represent the abilities of A and B to answer questions correctly.

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Answer:

B ≥ 209

Step-by-step explanation:

This is the equation - 25b + 525 ≥ 5750  .      

Comment if I solved it incorrectly ;-;  

Answer:

The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.

Step-by-step explanation:

yeah

Answer:

Pick two points on the line and determine their coordinates. Determine the difference in y-coordinates of these two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

I don't know if you want an example?

Answer:

  116 tiles

Step-by-step explanation:

You want to know the number of 6 cm equilateral triangle tiles required to cover 1800 cm².

The area of an equilateral triangle of side s is given by the formula ...

  A = (√3/4)s²

The area of a 6 cm equilateral triangle tile is ...

  A = (√3/4)(6 cm²) = 9√3 cm² ≈ 15.588 cm²

The number of tiles required is the total area divided by the area per tile:

  1800 cm² / (15.588 cm²/tile) ≈ 115.47 tiles

In order to cover 1800 cm², Liz will need 116 triangular tiles.

Answer:

100 tiles

Step-by-step explanation:

Each tile is an equilateral triangle with sides 6 cm in length, so the area of each tile can be found using the formula for the area of a triangle:

\(\sf:\implies{A = (b \times h) / 2}\)

where b is the base and h is the height.

Since each side of the triangle is 6 cm, the base and height of the triangle are both 6 cm, so:

\(\sf:\implies{A = (b \times h) / 2}\)

\(\sf:\implies{A = (6 \times 6) / 2}\)

\(\sf:\implies{A =18}\)

So each tile has an area of 18 cm².

To find the number of tiles needed to cover an area of 1800 cm², divide the total area by the area of each tile:

\(\sf:\implies{A = 1800 / 18}\)

\(\sf:\implies{A = 100}\)

Therefore, Liz needs 100 tiles to cover an area of 1800 cm².

a) The 90% confidence interval for the population mean is approximately (21.52, 23.48).

b) The 95% confidence interval for the population mean is approximately (21.322, 23.678).

c) The 99% confidence interval for the population mean is approximately (20.926, 24.074).

To develop confidence intervals for the population mean, we can use the formula:

Confidence Interval = sample mean ± (critical value * standard error)

where the standard error is equal to the sample standard deviation divided by the square root of the sample size.

a) For a 90% confidence interval, we need to find the critical value corresponding to a confidence level of 90%. The critical value can be obtained from the t-distribution table with (n-1) degrees of freedom. Since the sample size is 56, the degrees of freedom is 56-1 = 55.

From the t-distribution table, the critical value for a 90% confidence interval with 55 degrees of freedom is approximately 1.671.

The standard error can be calculated as:

Standard Error = sample standard deviation / sqrt(sample size)

Standard Error = 4.4 / sqrt(56)

Standard Error ≈ 0.5882

Now we can calculate the confidence interval:

Confidence Interval = 22.5 ± (1.671 * 0.5882)

Confidence Interval = 22.5 ± 0.9816

Confidence Interval ≈ (21.52, 23.48)

b) For a 95% confidence interval, the critical value for 55 degrees of freedom is approximately 2.004 (obtained from the t-distribution table).

Standard Error = 4.4 / sqrt(56) ≈ 0.5882

Confidence Interval = 22.5 ± (2.004 * 0.5882)

Confidence Interval = 22.5 ± 1.178

Confidence Interval ≈ (21.322, 23.678)

c) For a 99% confidence interval, the critical value for 55 degrees of freedom is approximately 2.678 (obtained from the t-distribution table).

Standard Error = 4.4 / sqrt(56) ≈ 0.5882

Confidence Interval = 22.5 ± (2.678 * 0.5882)

Confidence Interval = 22.5 ± 1.574

Confidence Interval ≈ (20.926, 24.074)

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