Find m∠ABC and m∠CBD

The dimensions are 3 inches, 10 inches, and 13 inches.

It should be noted that the diagonal is the longest side. This will be solved by using Pythagoras theorem.

Therefore,

(2x + 6)²

4x²+ 24x + 36

Reduce to lowest term

x² + 6x + 9

x² + 3x + 3x + 9

x(x + 3) - 3(x + 3)

(x - 3) = 0

x = 0 + 3 = 3

Therefore x = 3

Therefore the dimensions will be:

x = 3

2x + 4 = 2(3) + 4 = 10

2x + 6 = 2(3) + 6 = 12

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Answer:

Step-by-step explanation:

He missed 20 shots

Write 25% as 25100.

25100 of 80 = 25100 × 80.

Therefore, the answer is 20.

Answer:

60

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Step-by-step explanation:

25% of 80 is 20 shots made plus 60 shots missed= 80 shots

The statement "the two main methods used in inferential statistics is estimation and hypothesis testing." is True.

The two main methods used in inferential statistics are estimation and hypothesis testing.

Estimation involves using sample data to estimate the value of an unknown population parameter, such as the mean or standard deviation. The goal of estimation is to make inferences about a population based on a sample of data.

Hypothesis testing is a method used to make decisions about population parameters based on sample data. The goal of hypothesis testing is to determine whether a hypothesis about a population parameter is supported by the sample data, or whether there is enough evidence to reject the hypothesis.

In hypothesis testing, a null hypothesis is tested against an alternative hypothesis using a set of statistical tests and criteria. Both estimation and hypothesis testing play a crucial role in inferential statistics and are widely used in many fields, such as economics, psychology, biology, and others.

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The correct option that indicates how Christa sliced the rectangular pyramid is the second option.

Christa sliced the pyramid perpendicular to its base through two edges.

A rectangular pyramid is a pyramid with a rectangular base and four triangular faces.

The height of the cross section indicates that the location where Christa sliced the shape is lower than the apex of the pyramid.

The trapezoid shape of the cross section of the pyramid indicates that the top and base of the cross section are parallel, indicating that Christa sliced the pyramid parallel to a side of the base of the pyramid, such that it intersects two of the edges of the pyramid

The correct option is therefore the second option;

Christa sliced the pyramid perpendicular to its base through two edges

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Answer:

I have graphed it and attached in the explanation.

Step-by-step explanation:

a) The cost for 96 hotdogs from Value Market = $94.04.

b) The cost for 96 hotdogs from Sammy's Bulk Store = $75.84.

a) The cost for 96 hotdogs from Value Market would be $96 x $0.99/hotdog = $94.04.

b) The cost for 96 hotdogs from Sammy's Bulk Store would be $96 x $0.79/hotdog = $75.84.

For bottled water, Sammy's Bulk Store offers the better buy, with $0.69/bottle, compared to Value Market's $0.99/bottle. The reasoning is that Sammy's Bulk Store has a lower price per bottle of water.

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Answer:

picture #1 - 50.27 square units

picture #2 - 113.10 square units

picture #3 - 380.13 square units

Step-by-step explanation:

picture #1 - area = πr^2 -> π*4^2 = 50.27 square units

picture #2 - area = πr^2 -> π*6^2 = 113.10

picture #3 - area = πr^2 -> π*11^2 = 380.13

Answer: B

(2.5, ∞)

Step-by-step explanation:

The solution set of the given logarithm inequality will be (2.5,∞).

The exponent indicates the power to which a base number is raised to produce a given number called a logarithm.

In another word, a logarithm is a different way to denote any number.

As per the given logarithm function,

log₂(2x - 1) > 2

By log property

2x - 1 > 2 x 2

2x > 4 + 1

x > 5/2

x > 2.5 so the solution set will be 2.5 < x < ∞ or (2.5,∞).

Hence "The solution set of the given logarithm inequality will be (2.5,∞)".

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Answer:

Step-by-step explanation:

x + y = 25

2x - y = 6           Solve for y in this the second equation. Add y to both sides

2x  = 6 + y         The ys on the left cancel. Subtract 6 from both sides.

2x - 6 = y

Put this value of y into the first equation

x + y = 25

x + 2x - 6 = 25      Combine on the left

3x - 6 = 25           Add 6 to both sides.

3x = 25 + 6           Combine the right

3x = 31                   Divide by 3

x = 31 / 3            

x = 10.333333

x + y = 25

10.33333 + y = 25  Subtract 10.33333

y = 25 - 10.333333

y = 14.666666

x + y = 25

10.33333 + 14.66666

25 approximately.

2x - y = 6

2*10.33333 - 14.66666

20.66666 - 14.66666

6

You should note that those numbers are repeating decimals

2x - 6 = y

Answer:

12.6cm

Step-by-step explanation:

12.6 cm²

Area formula: (A = πr²)

If the diameter is 4 cm.. then that would mean the radius is 2 cm because the radius is half of the diameter. So, we already know the radius.. we just have to find the circumference.

Circumference formula: (C = πd) or (C = 2πr)

Finding the circumference : 3.14 × 4 = 12.56 cm

So, we now have the radius and circumference.

Radius = 2 cm

Circumference = 12.56 cm

Finding the Area : 3.14 × 2 × 2 = 12.56 cm²

So, 12.56 rounded to the nearest tenth is 12.6 cm².

Hope this helped! :)

Answer:

Step-by-step explanation:

Given that the function for Laura's profit is

p = 5b - 15

where b= number of brownies

Given that she sold 6 brownies, we can estimate the profit.

to do this lets put b=6 in the expression for the profit we have

p = 5(6) - 15

p=30-15

p=15

Her profit will be $15

Answer:

54 units squared

Step-by-step explanation:

hope this helped!

Answer:

53 cm

Step-by-step explanation:

the distance from opposite corners of the rectangle, divide the rectangle into 2 congruent right triangles with legs 45 and 28 and the diagonal (d) , the hypotenuse.

using Pythagoras' identity in one of the right triangles , then

d² = 45² + 28² = 2025 + 784 = 2809 ( take square root of both sides )

d = \(\sqrt{2809}\) = 53

the distance from corner to corner is 53 cm

Answer:

53

Step-by-step explanation:

u see this is how Pythagorean theorem works a^2 + b^2 = c^2 so yep thats how i got 53 i hope this helps please give brainliest have a good morning/afternoon/night have a great day!!! :D.   THANK YOU FOR BRAINLIEST!!!!

Answer

Distance = 4.1 km

Explanation

Let the distance between Jane's house from school be x

The distance can be calculated using pythagora's theorem

Therefore, the distance between Jane's house from school is 4.1 km

Answer:

Your answer is 22

Step-by-step explanation:

(3^2-5+7) = 11

2^2+-2 = 2

So 11*2 = 22

Hope this helps

Answer:

x > 9/5

Step-by-step explanation:

2/3 x - 1/5 > 1

15 × 2/3x - 15 × 1/5 > 15 × 1

10x - 3 > 15

10x > 18

x > 18/10

x > 9/5

Answer:

5-0 =15 by using shuvam theorY

Answer:

C

2/3 dividido 1/3 = 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

a.) 4

b.) 6

c.) 25

d.) 21

e.) 14

f.) 30

g.) 15

h.) 30

i.) 16

Step-by-step explanation:

Basically just find what factor the numerator or denominator is changing by, and apply it to the rest of the fraction. For example,

Given: 2/? = 10/20

Find: ?

We see that the numerator is being multiplied by 5 to get 10, so we simply divide 20 by 5 to get our answer of 4.

? = 4

Answer:

a) 4

b) 6

c) 25

d) 21

e) 14

f) 30

g) 15

h) 30

i) 49

Step-by-step explanation:

Answer:

55

Step-by-step explanation:

m angle A and m angle C are equal sine two of those sides are equal. You would do 3x + 40 = x +50

You subtract x, leaving it to be 2x + 40 = 50

Subtract the 40, leaving it be 2x = 10

Divide both sides by 2, which leaves x = 5

and then you would do 3(5) + 40, which is 55

Given that the correlation between two variables is r=0.23. We need to find out the new correlation that would exist if the following three changes are made to the existing variables: All values of the x-variable are added by 0.14. All values of the y-variable are doubled Interchanging the two variables.  the correct option is B. 0.37.

The effect of changing the variables on the correlation coefficient between the two variables can be determined using the following formula: `r' = (r * s_x * s_y) / s_u where r' is the new correlation coefficient, r is the original correlation coefficient, s_x and s_y are the standard deviations of the two variables, and s_u is the standard deviation of the composite variable obtained by adding the two variables after weighting them by their respective standard deviations.

If we assume that the x-variable is the original variable, then the new values of x and y variables would be as follows:x' = x + 0.14 (since all values of the x-variable are added by 0.14)y' = 2y (since every value of the y-variable is doubled)Now, the two variables are interchanged. So, the new values of x and y variables would be as follows:x" = y'y" = using these values, we can find the new correlation coefficient, r'`r' = (r * s_x * s_y) / s_u.

To find the new value of the standard deviation of the composite variable, s_u, we first need to find the values of s_x and s_y for the original and transformed variables respectively. The standard deviation is given by the formula `s = sqrt(sum((x_i - mu)^2) / (n - 1))where x_i is the ith value of the variable, mu is the mean value of the variable, and n is the total number of values in the variable.

For the original variables, we have:r = 0.23s_x = standard deviation of x variable = s_y = standard deviation of y variable = We do not have any information about the values of x and y variables, so we cannot calculate their standard deviations. For the transformed variables, we have:x' = x + 0.14y' = 2ys_x' = sqrt(sum((x_i' - mu_x')^2) / (n - 1)) = s_x = standard deviation of transformed x variable` = sqrt(sum(((x_i + 0.14) - mu_x')^2) / (n - 1)) = s_x'y' = 2ys_y' = sqrt(sum((y_i' - mu_y')^2) / (n - 1)) = 2s_y = standard deviation of transformed y variable` = sqrt(sum((2y_i - mu_y')^2) / (n - 1)) = 2s_yNow, we can substitute all the values in the formula for the new correlation coefficient and simplify:

r' = (r * s_x * s_y) / s_ur' = (0.23 * s_x' * s_y') / sqrt(s_x'^2 + s_y'^2)r' = (0.23 * s_x * 2s_y) / sqrt((s_x^2 + 2 * 0.14 * s_x + 0.14^2) + (4 * s_y^2))r' = (0.46 * s_x * s_y) / sqrt(s_x^2 + 0.0396 + 4 * s_y^2)Now, we can substitute the value of s_x = s_y = in the above formula:r' = (0.46 * * ) / sqrt( + 0.0396 + 4 * )r' = (0.46 * ) / sqrt( + 0.1584 + )r' = (0.46 * ) / sqrt(r' = (0.46 * ) / sqrt(r' = (0.46 * ) / sqrt(r' = r' = Therefore, the new correlation coefficient, r', would be approximately equal to.

Hence, the correct option is B. 0.37.

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Answer:

216 and 64

Step-by-step explanation:

Answer:

1 ) Yes

2) No

perfect cubes are 216 and 64

³√64=4 } not have fraction so it's perfect cubes

³√216=6 } not have fraction so it's perfect cubes

Hope this helps

True, It is common to assess the performance of linear probability and logistic regression models on the basis of the Accuracy rates defined as the percentage of correctly classified observations

It is common to assess the performance of linear probability and logistic regression models using accuracy rates defined as the percentage of correctly classified observations. Accuracy is a widely used measure in classification tasks as it provides a straightforward and intuitive assessment of how well the model predicts the correct outcomes.

In linear probability models, the dependent variable is a binary variable (0 or 1) representing the outcome of interest. The model estimates the probability of the outcome being 1 based on the predictor variables. The predicted probabilities are then converted into predicted outcomes (0 or 1) using a cutoff value, often 0.5. The accuracy rate measures the percentage of correctly predicted outcomes against the actual outcomes.

In logistic regression models, which are specifically designed for binary outcomes, the predicted probabilities are obtained using the logistic function. Similar to linear probability models, the predicted probabilities are converted into predicted outcomes using a cutoff value. The accuracy rate is calculated by comparing the predicted outcomes to the actual outcomes.

While accuracy is commonly used, it is important to consider other performance metrics as well, depending on the specific context and objectives. For example, precision, recall, and the receiver operating characteristic (ROC) curve provide additional insights into the model's performance, particularly in situations with imbalanced datasets or when different costs are associated with false positives and false negatives.

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Answer:

Step-by-step explanation:

The ratio would be 36:4. The bigger number is on either side but when it concludes "for" means it's a ratio.

Answer:

91 cents per ounce

Step-by-step explanation:

Divide 13.59 by 15

Answer: $0.91

Step-by-step explanation:

Take $13.59 divided by 15 = $0.91 per ounce

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Answer:

x = 2y+4

y = 3x2 squared 2

x = y

Step-by-step explanation:

Answer:

-7 and 1 multiply to 7 and add up to -6

Step-by-step explanation:

-7 and 1 multiply to 7 and add up to -6