-2x - 4 = 20 i need hlp

A predetermined formula known as "Functions" that performs computations using specified values inside a particular arrangement or structure.

A function, according to a technical definition, is a relationship between a set of inputs and a set of potential outputs, where each input is connected to precisely one output.

Thus, a predetermined formula known as "Functions" that performs computations using specified values inside a particular arrangement or structure.

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Answer:

BBBBBBBBBBBBBBBBBBBB

Step-by-step explanation:

CAUSE I SAID SO

Answer:

20,000 bricks

Step-by-step explanation:

length of brick(L)=22cm

breadth of brick(B)=15cm

now,

area of brick(A)=L×B

=22×15s.q.cm

=0.033s.q.m

again,

length of court(l)=30m

breadth of court(b)=22m

now,

area of court(a)=l×b

=30×22s.q.m

=660s.q.m

lastly,

no.of required brick=area of court/area of

brick

=600 s.q.m/0.033s.q.m

=20,000bricks

By completing the square, the equation in standard form is (x - 2)² + (y + 4)² = 4².

In Mathematics and Geometry, the standard form of the equation of a circle is modeled by this mathematical equation;

(x - h)² + (y - k)² = r²

Where:

From the information provided below, we have the following equation of a circle:

x² - 4x + y² + 8y = -4

x² - 4x + (-4/2)² + y² + 8y + (8/2)² = -4 + (-4/2)² + (8/2)²

x² - 4x + 4 + y² + 8y + 16 = -4 + 4 + 16

(x - 2)² + (y + 4)² = 16

(x - 2)² + (y + 4)² = 4²

Therefore, the center (h, k) is (2, -4) and the radius is equal to 4 units.

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Complete Question:

Complete the square to rewrite the following equation in standard form. x² - 4x + y² + 8y = -4.

The graph represents this system of inequalities:

F. y ≤ −x + 4

G. y ≤ 3x − 1

In Mathematics, the point-slope form of a straight line can be calculated by using this mathematical expression:

y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

Where:

Next, we would determine the linear equation representing the line of f(x) which passes through the points (0, 4) and (4, 0) by using the point-slope form as follows:

y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

y - 0 = (4 - 0)/(0 - 4)(x - 4)

y - 0 = -1(x - 4)

y = -x + 4

Therefore, an inequality representing the line of f(x) is y ≤ -x + 4

For the line of g(x), we have:

y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

y - (-1) = (5 - (-1))/(2 - 0)(x - 0)

y + 1 = 3(x - 0)

y = 3x - 1

Therefore, an inequality which represents the line of g(x) is y ≤ 3x - 1.

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Complete Question:

In the graph, the area below f(x) is shaded and labeled A, the area below g(x) is shaded and labeled B, and the area where f(x) and g(x) have shading in common is labeled AB. Graph of two intersecting lines. The line f of x is solid and goes through the points 0, 4, and 4, 0 and is shaded below the line. The other line g of x is solid, and goes through the points 0, negative 1 and 2, 5 and is shaded below the line. The graph represents which system of inequalities?

y ≤ −3x − 1

y ≤ −x − 4

y > −3x + 1

y ≤ −x − 4

y < 3x − 1

y ≤ −x + 4

y ≤ 3x − 1

y ≥ −x + 4

The formula for the exponential function that passes through the two given points is: f(x) = 4^x

Step-by-step explanation:

An exponential function has the form f(x) = a^x, where a is a constant base.

We can use the two points given to find the value of a.

Using the first point (0, 4), we get:

f(0) = a^0 = 1a = 4

So, a = 4.

Now, we can write the exponential function as:

f(x) = 4^x

To check if this function passes through the second point (3, 256), we substitute x = 3:

f(3) = 4^3 = 64 * 4 = 256

So, the function passes through both points (0, 4) and (3, 256).

Therefore, the formula for the exponential function that passes through the two given points is:

f(x) = 4^x

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Answer:

9pm Monday

Step-by-step explanation:

It would take 12 hours, that would be when all of the medicines would be taken at the same time, because 3/4/6 are factors of 12

Answer:

Monday at 9pm

Step-by-step explanation:

Therefore, 9 is common so the next time the drugs will be taken at the same time is by 9pm.

The equation that represent the average price of a house as a function of the year can be presented as follows;

The average of a value, such as the average price of a houses is the ratio between the sum of the prices of the houses to the number of houses.

The average cost of a family house in 1997 = $156,100

The average cost of the family house in 2010 = $254,400

The equation for the price (p) of a house as a function of the year, t where t = 0 corresponds to 1997, can be found as follows;

The slope of the equation is; (254,400 - 156,100)/(2010 - 1997) = 98300/13

98300/13 = 7561 7/13

The linear equation is therefore;
p - 156100 = (98300/13) × (t - 0)

p = (98300/13) × t + 156100

p = (7561 7/13) × t + 156100

The average price of a house today, 2023 can be found by plugging in the value, t = 2023 - 1997 = 26 in the above equation as follows;

p = (98300/13) × 26 + 156100 = 352,700

The price of a house today is $352,700

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Let {(-1) + 1/n: n € N} be the collection of all natural numbers less than 1, where n is a positive integer. Each of these intervals is an open set in R because it contains all real numbers between -1 + 1/n and -1 + 1/(n + 1), which is a strictly larger interval.

Therefore, the intersection of all these open sets, {(-1) + 1/n: n € N}, is also an open set because it contains all real numbers between -1 and 0. However, this intersection is not an open set in the usual sense because it does not contain any points between -1 and -1/2. Specifically, there are no real numbers between -1 and -1/2 that belong to this intersection.

This means that the intersection is not an open set because it does not contain any points that are "neighbors" of each other in the sense of being close to each other in the real number line. In other words, the intersection of an infinite number of open sets may not be open even if each of the individual open sets is open. This is because the intersection may not contain any points that are close to each other in the real number line, which is a necessary condition for a set to be open.

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Answer:

The difference is approxiametly 8

Step-by-step explanation:

Things need to know

Whole number = Number on the left side of the mixed fraction

Numerator = Number on top of fraction

Denominator = Number on bottom of fraction

How to convert mixed numbers into improper fractions = Multiply denominator by whole number and then add that to the numerator

How to turn improper factions into decimals = Divide numerator by denominator

Improper fraction = A fraction where the numerator is greater than the denominator

Mixed fraction = A whole number and a proper fraction mixed together

For the first mixed number:

\(9 \dfrac{ 52 }{ 69 }\)

9 = whole number

52 = numerator

69 = denominator

For the second mixed number:

\(1 \dfrac{ 29 }{ 50 }\)

1 = whole number

29 = numerator

50 = denominator

Given:

\(9 \dfrac{ 52 }{ 69 } -1 \dfrac{ 29 }{ 50 }\)

Convert mixed numbers into improper fractions

\(\dfrac{ 673 }{ 69 } - \dfrac{ 79 }{ 50 }\)

Turn improper factions into decimals

\(9.753623188405797-1.58\)

Round both numbers to the nearest whole number

\(10-2\)

Subtract 2 from 10

\(8\)

Answer: 8

The MLE estimates for the unigram model are as follows:
P(a) = 0.500, P(b) = 0.313, and P(c) = 0.188 (rounded to three decimal places).

To calculate the MLE estimate for the unigram model, we need to count the number of times each character appears in the sequence.

Let's find the Maximum Likelihood Estimation (MLE) estimate for the unigram model based on the given sequence. We'll break down the steps as follows:

1. Count the occurrences of each character in the sequence.
2. Calculate the total number of characters in the sequence.
3. Divide the count of each character by the total number of characters to find the MLE estimate for each character.

a appears 6 times, b appears 5 times, and c appears 2 times.

We can then divide each count by the total number of characters in the sequence to get the probability of each character:

P(a) = 6/15 = 0.4
P(b) = 5/15 = 0.333
P(c) = 2/15 = 0.133

So the MLE estimate for the unigram model is:
P(a) = 0.4
P(b) = 0.333
P(c) = 0.133

We round to three decimal places to get:
P(a) = 0.400
P(b) = 0.333
P(c) = 0.133

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Answer:

A: (-7, 2)
B: (-4, 2)
C: (-3, 7)

Step-by-step explanation:

So a little tip! 270 degrees clockwise is the same as 90 degrees counter clockwise!! (and vice versa)

90 degrees counter-clockwise would switch all the coordinates from (x,y) to (-y,x)

Answer:

40) 105 miles (mi)

42) 3.2 centimeters (cm)

Step-by-step explanation:

First determine which part of the ratio corresponds to what. Once you have figured that out, divide by the part of the ratio that corresponds to your given part and then multiply that by the other part of the ratio to derive the quantity.

If a:b

Then a × a/b = b, and b × a/b = a.

You can think of : as "to".

For example, you are given a map with a scale ratio of 1 in : 20 mi, this means that for every inch of the map, there is an actual distance of 20 miles.

So in this situation, the left part of the ratio is the length of the map in inches, and the right part of the ratio is the real distance in miles. For x inches of the map, there is 20 x miles of actual distance. Therefore 3.5 inches has an actual distance of 3.5 × 20 miles or 105 miles of actual distance.

For problem 2, you are given a ratio of 1 m : 2 cm, this means that for every 1 meter of the drawing, there is 2 cm of the plant. Therefore if you have 1.6 meter of the map, then you have 1.6 × 2 cm of the plant or 3.2 cm. For both situations the left part of the ratio is 1 which means that you just multiply by the right part of the ratio by which you are given.

The proportion of the team that work part time is 2/13 or 0.154

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the proportion be represented as A

Now , the equation will be

Let the total number of workers in the furniture store be = 13 employees

Let the number of workers who are part time = 2 workers

So , proportion of the team that work part time = number of workers who are part time / total number of workers in the furniture store

On simplifying , we get

The proportion of the team that work part time = 2 / 13

The proportion of the team that work part time = 0.154

Hence , the proportion is 2/13 or 0.154

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Answer:

-8, 16, -32, 64

Step-by-step explanation:

a1 = -8

r = -2

a2 = -8(-2)=16

a3 = -8(-2)²=-8(4)=-32

a4=-8(-2)³=-8(-8)=64

The length of side GF from the similar triangles shown is GF = √10 units

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

Two triangles are said to be similar if they have the same shape, all the angles are equal and the ratio of corresponding sides are in the same proportion.

In a similar triangle, DE = GF, Hence:

GF/DF = GH/DE

GF / 5 = 2 / GF

GF² = 10

GF = √10

The length of side GF from the similar triangles shown is GF = √10 units

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Answer:

A

Step-by-step explanation:

a set of points plotted on a horizontal and vertical axes

Answer:

I assumed you meant to write √28 + √1,296. The answer is 2√7 + 36.

Step-by-step explanation:

\(\sqrt{4 * 7} + \sqrt{1296} \\\sqrt{2^2 * 7} + \sqrt{1296}\\2\sqrt{7} + \sqrt{1296}\\ 2\sqrt{7} + \sqrt{36^2}\\= 2\sqrt{7} + 36\)

The marginal relative frequency of boys and girls who want to be a teacher is 32.86%.

The joint relative frequency of girls who want to be an athlete is 12.38%.

The conditional relative frequency of students that selected doctor, given that those students are boys is 25.93%.

We'll use the terms marginal relative frequency, joint relative frequency, and conditional relative frequency to analyze the data in the table.

1. The marginal relative frequency of boys and girls who want to be a teacher is:

First, find the total number of students who want to be a teacher (boys + girls):

24 (boys) + 45 (girls) = 69 (total students)

Next, find the total number of students surveyed (sum of all entries in the table):

24 + 28 + 56 + 45 + 31 + 26 = 210

Now, calculate the marginal relative frequency of boys and girls who want to be a teacher (total students who want to be a teacher / total students surveyed):

69 / 210 ≈ 0.3286

Multiply by 100 to get the percentage:

0.3286 * 100 ≈ 32.86%

2. The joint relative frequency of girls who want to be an athlete is:

Find the number of girls who want to be an athlete: 26

Calculate the joint relative frequency (number of girls who want to be an athlete / total students surveyed):

26 / 210 ≈ 0.1238

Multiply by 100 to get the percentage:

0.1238 * 100 ≈ 12.38%

3. The conditional relative frequency of students that selected doctor, given that those students are boys:

Find the total number of boys surveyed (sum of boys row):

24 + 28 + 56 = 108

Calculate the conditional relative frequency (number of boys who want to be a doctor / total boys surveyed):

28 / 108 ≈ 0.2593

Multiply by 100 to get the percentage:

0.2593 * 100 ≈ 25.93%

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The bearing is the angle measured clockwise from the north direction to a specified direction. To find the bearing of Town Y from Town B, we use the given information that Town B is located south 38 degrees east from Town Y. By subtracting this angle from 180 degrees, we find that the bearing is 142 degrees.

To determine the bearing, we need to find the angle between the north direction and the direction from Town B to Town Y.

Since Town B is located south of Town Y, the bearing will be a southern direction. The bearing angle can be calculated as 180 degrees minus the given angle, which is 38 degrees.

Therefore, the bearing of Town Y from Town B is 180 - 38 = 142 degrees.

In conclusion, the main answer is that the bearing of Town Y from Town B is 142 degrees.

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Answer:

6 units

Step-by-step explanation:

Count the squares between e and f

Answer:

6 units

Step-by-step explanation:

EF appears to be a straight horizontal line. Here are the coordinates for each point:

E (-4, 0)

F (2,0)

There is a change of 6 in x.

Therefore, EF is 6 units.

Awnser: C, A.

Reasoning: On a number line, the bigger number is to the right tthe lower number. for A. For C, it is between 1 and 2 because the number is 1.38.

The inequality of the temperatures where yeast will NOT thrive is T < 90°F or T > 95°F

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

Yeast thrives between 90°F to 95°F

For the temperatures where yeast will not thrive, we have the temperatures to be out of the given range

Using the above as a guide, we have the following:

T < 90°F or T > 95°F.

Where

T = Temperature

Hence, the inequality is T < 90°F or T > 95°F.

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True. Instantaneous velocity is the rate of change of displacement at a specific instant in time and can be positive, negative, or zero.

Calculating instantaneous velocity involves dividing the displacement change by the time change. A car's instantaneous velocity, for instance, would be 5/3 metres per second if it travelled 5 metres in 3 seconds.The rate of change of displacement at a particular moment in time is known as the instantaneous velocity. It is the speed in an instant at a particular location, and it can be positive, negative, or zero. The change in displacement (delta x) is divided by the change in time to determine instantaneous velocity.  A car's instantaneous velocity, for instance, would be 5/3 meters per second if it travelled 5 meters in 3 seconds.

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Answer:

3.87 ounces

Step-by-step explanation:

12.9×.3= 3.87

( when you multiply percentages, 30% turns into

.3)

The dimensions of the box to minimize the cost of materials are 3.16 cm x 3.16 cm x 3.16 cm.

To minimize the cost of materials for the jewelry box with a square base, you will need to find the dimensions of the box. The volume of the box is 40 cm3. The sides of the box will be silver plated and cost $12 per cm2, while the top and bottom will be nickel plated and cost $1 per cm2.

Since the box has a square base, each of the sides has the same area and the total area of the box is four times the area of one side. To minimize cost, the sides of the box need to be as small as possible. The equation for the area of a square is A = l2.

We can use this equation to find the length of one side of the box. 40 cm3 = l2 x 4, so l2 = 10 cm2. The length of one side of the box is the square root of 10, which is approximately 3.16 cm.

Therefore, the dimensions of the box to minimize the cost of materials are 3.16 cm x 3.16 cm x 3.16 cm.

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Answer:

-1 and 4

Step-by-step explanation:

first you bring the terms on the right side to the left and you get:

-x^2 + 3x + 4 = 0

then you divide both sides of the quadratic by -1:

x^2 - 3x - 4 = 0

then you factor the equation:

(x + 1)(x - 4) = 0

for any product to be zero, one of the factors must be zero. hence, either x + 1 or x - 4 can be zero. so x can be -1 and//or 4.

have a great day <3

Answer:

The given expression is:

-(1)/(9)(13x)

We can use the commutative property of multiplication to rearrange the order of the factors:

-(1)/(13x)(9)

Now, we can use the associative property of multiplication to group the factors in any way we want:

-(1/13)(1/x)(1/9)

This is the simplified expression using the commutative and associative properties of multiplication.

Answer:

wuuuut do u meann

Step-by-step explanation:

The probability that they play at least three games is 16/25. This means that on average, they will need to play 25/16 = 1.56 games until Joe wins.

To solve this problem, we need to consider the different scenarios that could occur when playing the game repeatedly until Joe wins a game. Let's start by calculating the probability that Joe wins in one game.

Since any one of the five players is equally likely to win, the probability that Joe wins in one game is 1/5. Therefore, the probability that he does not win in one game is 4/5.

Now, let's consider the different scenarios that could occur in multiple games until Joe wins. If Joe wins in the first game, then they only play one game, and the probability that they play at least three games is zero. If Joe does not win in the first game, they need to play at least one more game.

If Joe wins in the second game, then they have played two games, and the probability that they play at least three games is zero. However, if Joe does not win in the second game, they need to play at least one more game.

If Joe wins in the third game, then they have played three games, and the probability that they play at least three games is one. If Joe does not win in the third game, they need to play at least one more game.

We can see a pattern emerging here. The probability that they play at least three games is only non-zero if Joe does not win in the first two games. In this case, they must continue playing until Joe wins a game, and this will take at least three games.

The probability that Joe does not win in the first two games is (4/5) x (4/5) = 16/25. Therefore, the probability that they play at least three games is 16/25.

However, it's important to note that this is just an average, and they could play more or fewer games depending on the outcomes of each individual game.

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a)

The population in 2011 is that of 2010 plus 1.1% (=0.011) of the population in 2010; therefore

Similarly, in the case of 2012,

Finally,

b)

Notice that the pattern below emerges from the table in part a)

Thus, the exponential equation that models the population is

c) 2020 occurs 10 years after 2010; therefore, setting t=10 in the equation found in part b)