Evaluate each expression so the equation is 8b-a and a=4 and b=6

it A

Step-by-step explanation:

Answer:

Download the app photomath and right your solution

First, you need to know what "m" and "b" represents.

"m" represents slope, and "b" represents the y intercept.

For the equation you can combine the information to get y = mx + b

To find "m" indentify points, and see how many you have to go up/down then left/right.

To find "b" since the graphis given see where the line crosses the y axis. (0, b)

1. m = -1, b = 3

y = -1x + 3

2. m = 1, b = -3

y = 1x -3

3. m = 3/1 or 3, b = 1

y = 3x + 1

4. m = -3/1 or -3, b = -3

y = -3x -3

Answer:

\(174 cm^{2}\)

Step-by-step explanation:

There are two triangles and two rectangles in the figure.

To find the area of the triangles:

6 x 9 = \(54cm^{2}\)

To find the area of the rectangles:

9 x 8 = \(72cm^{2}\)

6 x 8 = \(48cm^{2}\)

Add all of this together for your answer:

54 + 72 + 48 = \(174cm^{2}\)

Answer: D. as a total number of family member increases the amount of money that the family spends on food increases

Step-by-step explanation:

i.e. independent variable acts like a cause to effect the dependent variable.

This can be seen only in Option D. as it is very obvious that increase in family member will increase the cost of food.

Hence, there is direct effect of number of people on food's cost.

Rest of options represents correlation but not causation .

Hence, the correction option is D.

To eliminate the roots in 1.1 and 1.2, we can use trigonometric substitution. In 1.1, we can substitute x = 4 sin(theta) to eliminate the root of 4. In 1.2, we can substitute z = 7 sin(theta) to eliminate the root of 7.

1.1. V64+2 + 1 We can substitute x = 4 sin(theta) to eliminate the root of 4. This gives us:

V64+2 + 1 = V(16 sin^2(theta) + 2 + 1) = V16 sin^2(theta) + V3 = 4 sin(theta) V3 1.2. V4z2 – 49

We can substitute z = 7 sin(theta) to eliminate the root of 7. This gives us:

V4z2 – 49 = V4(7 sin^2(theta)) – 49 = V28 sin^2(theta) – 49 = 7 sin(theta) V4 – 7 = 7 sin(theta) (2 – 1) = 7 sin(theta)

Here is a more detailed explanation of the substitution:

In 1.1, we know that the root of 4 is 2. We can substitute x = 4 sin(theta) to eliminate this root. This is because sin(theta) can take on any value between -1 and 1, including 2.

When we substitute x = 4 sin(theta), the expression becomes V64+2 + 1 = V(16 sin^2(theta) + 2 + 1) = V16 sin^2(theta) + V3 = 4 sin(theta) V3

In 1.2, we know that the root of 7 is 7/4. We can substitute z = 7 sin(theta) to eliminate this root. This is because sin(theta) can take on any value between -1 and 1, including 7/4.

When we substitute z = 7 sin(theta), the expression becomes: V4z2 – 49 = V4(7 sin^2(theta)) – 49 = V28 sin^2(theta) – 49 = 7 sin(theta) V4 – 7 = 7 sin(theta)

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Answer:

70°

Step-by-step explanation:

m<13 + m<14 = 180

So, 12x-22+9x-29=180

or, 21x=180+29+22

or, 21x=231

or, x=11

now m<2=<m14=9x-29

or, m<2=9×11-29=70°

Answered by GAUTHMATH

Complement of set A is the set of all elements in the universal set that are not in the set .

If there is a subset of the universal set (U) called A, then the complement of set A, denoted by the symbol A', is different from the elements of set A and contains the elements of the universal set but not the elements of set A.

In this case, A' = x U: x A.

In other words, the complement of a set A is the difference between the universal set and set A.

For example: U = {1, 2, 3, 5, 7, 9, 15 ,14, 13}, A = {1, 2, 3, 5,7,9}, find the complement of A.

A' = U - A = {1, 2, 3, 5, 7, 9, 15,14,13} - {1, 2, 3, 5,7,9} = {15,14, 13}

A set that contains items from all related sets, without any repetition of elements, is known as a universal set (often symbolised by the letter U). If A and B are two sets, for example, A = 1, 2, 3 and B = 1, a, b, c, then U = 1, 2, 3, a, b, c is the universal set that these two sets belong to.

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Answer:

5.

Step-by-Step explanation:

Distance = √ [(6-3)^2 + (8-4)^2) ]

= √(9 + 16)

= √25

= 5.

Answer:

A triangle with a base of 7.18 inches and a height of 5.4 inches

Step-by-step explanation:

You have to multiply 7.18 by 5.4

7.18*5.4=38.772

If you do the math to the other equations, they are all less then the triangle.

Answer:

Visually, you should be seeing a linear graph because this problem can be represented as a linear equation: y = 150x + 2000. Graph this equation to find the answer.

Step-by-step explanation:

The most appropriate units to describe the cost of the sandbox would indeed be dollars.

When describing the cost of an item or service, it is essential to use the unit that represents the currency being used for the transaction. In this case, the total cost of the sand for the school's sandbox is given in dollars. To maintain consistency and clarity, it is best to express the cost in the same unit it was provided.

Using dollars as the unit for the cost allows for clear communication and understanding among individuals involved in the transaction or discussion. Dollars are widely recognized as the standard unit of currency in many countries, including the United States, where the dollar sign ($) is commonly used to denote monetary values.

Using meters, the unit for measuring the dimensions of the sandbox, to describe the cost would be inappropriate and could lead to confusion or misunderstandings. Mixing units can cause ambiguity and hinder effective communication.

Therefore, it is most appropriate to describe the cost of the sand in dollars, aligning with the unit of currency provided and commonly used in financial transactions. This ensures clarity and facilitates accurate comprehension of the cost associated with the sand purchase for the school's sandbox.

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Answer:

s= 100

r= 130

x= 38

y= 30

Step-by-step explanation:

This equation rewritten in logarithmic form is x = log₉(3)

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

9^x = 3

Take the logarithm of both sides

So, we have

xlog(9) = log(3)

Divide both sides by log(9)

So, we have

x = log₉(3)

Hence, the equation is x = log₉(3)

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Answer:  A) stretched vertically by 2 and shifted up 6 units

Step-by-step explanation:

y = A log(Bx - C) + D    where

Given: f(x) = log x

          g(x) = 2 log x + 6

→ A = 2   vertical stretch by a factor of 2

→ D = +6  vertical shift UP 6 units

Answer: True, False, False, True, False

Step-by-step explanation: Fractions are easy.

Answer:

13 :V

Step-by-step explanation:

Answer: 13

Step-by-step explanation:

13 because 13+2=15 which would be the answer.

The three conditions for a function to be continuous at a point x=a are:

a) The function is defined at x=a.

b) The limit of the function as x approaches a exists.

c) The limit of the function as x approaches a is equal to the value of the function at x=a.

The continuity of a function can be analyzed by observing its graph. However, as the graph is not provided, a specific discussion about its continuity cannot be made without further information. It is necessary to examine the behavior of the function around the point in question and determine if the three conditions for continuity are satisfied.

The function f(x) = { *** is not defined in the question. In order to discuss its continuity, the function needs to be provided or described. Without the specific form of the function, it is impossible to analyze its continuity. Different functions can exhibit different behaviors with respect to continuity, so additional information is required to determine whether or not the function is continuous at a particular point or interval.

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The difference in the volume of bedroom door in the house taken the length and width into consideration will be 120 inches³.

It should be noted that the volume of a door is simply gotten by multiplying the length by width.

Let's assume that the width is 20 inches. Therefore, the difference will be:

= (36 × 20) - (30 × 20)

= 720 - 600

= 120 inches³

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The likelihood of the event is 1/2

This expression yields: 4x^8 = 4 * (1/4)^(8/3)

If the expression 4x^3 is equal to 1 for some value of x, we can find the value of x by solving the equation:

4x^3 = 1

Dividing both sides of the equation by 4, we get:

x^3 = 1/4

Taking the cube root of both sides, we find:

x = (1/4)^(1/3)

Now, to determine the value of the expression 4x^8 for the same value of x, we substitute the value of x into the expression:

4x^8 = 4 * ((1/4)^(1/3))^8

Simplifying this expression yields:

4x^8 = 4 * (1/4)^(8/3)

Further simplification depends on whether you want an exact answer or an approximation. If you need an approximate value, please provide the desired level of precision.

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Answer:

x=27

Step-by-step explanation:

expanding the above expression we get

5x+5=4x+32

grouping numbers with coefficient of x at the left side and constant at the right side we get

5x-4x=32-5

x=27

The value of 0.6 is greater than the value of 0.39 because; C 0.6 is greater than 0.39 because 6 tenths is greater than 9 hundredths.

When we are talking about decimals, the left hand side before the decimal are referred to as whole numbers while the first digit after the decimal represents the tenths place, the next digit after the tenths place  represents the hundredths place, the next digit after the hundredths place represents the thousandths place and so on.

Now, we are given two decimals 0.6 and 0.39.

We see clearly that 0.6 has a greater tenths digit than the hundredths digit in 0.39. This is seen as;

0.6 = 6/10 while 0.39 = 39/100

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The answer is either 2 cups or slightly more than 2 cups of fluid to rehydrate himself.

Rehydration means replenishing the fluids and electrolytes lost from the body due to various reasons, such as sweating during exercise, diarrhea, vomiting, fever, etc.

It is important to maintain proper hydration levels to keep the body functioning properly.

Here we have

Bert goes to the gym and works out strenuously for about 45 minutes. after his exercise session, he weighs himself and notices that he has lost a pound.  

It is recommended to drink about 16-20 ounces (2-2.5 cups) of fluid for every pound lost during exercise.

Since Bert lost one pound during his workout, he should drink about 16-20 ounces (2-2.5 cups) of fluid to rehydrate his body.

Therefore,

The answer is either 2 cups or slightly more than 2 cups of fluid to rehydrate himself.

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Answer:

x = 20

Step-by-step explanation:

Answer:

(6-2)/4

Step-by-step explanation:

Make sure you have the parenthesis

Answer:

10 pounds

Step-by-step explanation:

given ratio weight:added weight=10:1

100:x=10:1

100/x=10/1

solving for x

100=10x

x=10

The Pharmaceutical company can use the method of t-test which assumes that the data is normally distributed and that the variances between the two groups are equal. If these assumptions are not met, alternative tests such as the Mann-Whitney U-test may be more appropriate

The pharmaceutical company wants to test whether their new drug can help regrow hair in balding men compared to a placebo.

The most appropriate Hypothesis testing  for these data would be a two-sample t-test. This test compares the means of two independent groups, in this case, the group receiving the drug and the group receiving the placebo. The t-test will determine if the difference in the means between the two groups is statistically significant or due to chance.

To conduct the two-sample t-test, the researchers will need to calculate the mean and standard deviation of the percentage change in hair coverage for each group. They will also need to determine the sample size, which in this case is 50 for each group. The t-test will then calculate a t-statistic and a corresponding p-value.

If the p-value is less than the predetermined level of significance, usually 0.05, the researchers can reject the null hypothesis that there is no difference in hair regrowth between the drug and placebo groups. This would suggest that the new drug is effective in helping regrow hair in balding men.

It is important to note that the t-test assumes that the data is normally distributed and that the variances between the two groups are equal. If these assumptions are not met, alternative tests such as the Mann-Whitney U-test may be more appropriate.

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X^5/3Y^1/3 is the correct answer.

The probability of drawing two blue marbles with replacement from the bag is 1/9 or approximately 0.111

When drawing marbles with replacement, the probability of drawing a blue marble on the first draw is 4/12, or 1/3. The probability of drawing another blue marble on the second draw is also 1/3, since the probability of drawing a blue marble does not change after the first marble is drawn.

To find the probability of both events occurring, we can multiply the probabilities together:

P(drawing two blue marbles with replacement) = P(blue on first draw) × P(blue on second draw)

P(drawing two blue marbles with replacement) = (1/3) × (1/3)

P(drawing two blue marbles with replacement) = 1/9

= 0.111

Therefore, the probability is 0.111

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