2a - 1 -4(1)/(3)a + 7 - a. Show Your Work Please

A quadratic function is one that has the formula f(x) = ax² + bx + c, where a, b, and c are all integers with a not equal to zero.

To choose the parabola equation that best fits a collection of data, a statistical method known as quadratic regression is performed. To get the equation of the straight line that best fits a collection of data, this sort of regression is an extension of simple linear regression.

Using a collection of data with a parabola-like form, quadratic regression seeks the best-fitting equation. Making a scatter plot is the initial stage in regression.

A quadratic function is one that has the formula f(x) = ax² + bx + c, where a, b, and c are all integers with a not equal to zero. A parabola is the shape that makes up the graph of a quadratic function. If a parabola opens up.

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Answer:

D because 48 ÷ 8 = 6 42 +6 = 7

The best answer from the choices provided,

is x = 7.

The correct option is B.

One mathematical expression makes up a term. It might be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase.

Given:

An expression,

48/8 = 42/x

Applying cross multiplication,

x = 42(8)/48

x = 7

Therefore, the value of x is 7.

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Answer:

1; can't say for certain

2: well, the chances of getting a yellow starburst are 1/8th but those are immediately increased depending on how many packs you buy though I can't say for certain how much because I do not know the variable of how many you may possibly buy.

3; the chance of getting 2 yellows in a pack are 1/8ths or 1/16ths as for there's a 1/8th chance of getting one yellow in a pack.

4,5,6;well, considering orange seems most abundant there would be at least a 3/4ths chance of getting orange a 2/4ths chance of getting pink and for the other colors a 1/4th chance of getting yellow or red

Step-by-step explanation:

Answer:

Hello!

Im using 3.14 for pi

circumference: 43.96

area: 153.86

Hope that helps!

Answer:

43.96km

Step-by-step explanation:

hope this helps, braniliest  plzz

Answer:

The letter "x" is often used in algebra to mean an unknown value. It is often called a "variable".

Example:

In x + 5 = 12, x is a variable, but we can work out its value if we try!

Answer:

8.484

Step-by-step explanation:

Answer:

8.484

Step-by-step explanation:

The solution to the inequality is x >= -2 for inequality 3x-5≥-11

The given inequality is 3x-5≥-11

Three times of x greater than or equal to minus eleven

x is the variable

3x - 5≥ -11:

Adding 5 to both sides, we get:

3x ≥ -6

Dividing both sides by 3, we get:

solution is  x≥-2

Therefore, the solution to the inequality is x >= -2.

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By making x the subject of the formula in this equation u = cos(0.5x)​ gives x = 2cos⁻¹(u).

In Mathematics and Geometry, an equation can be defined as a mathematical expression which shows that two (2) or more thing are equal. This ultimately implies that, an equation is composed of two (2) expressions that are connected by an equal sign.

In this exercise, you are required to make "x" the subject of the formula in the given mathematical equation by using the following steps.

By taking the arc cosine of both sides of the equation, we have the following:

u = cos(0.5x)

cos⁻¹(u) = 0.5x

By multiplying both sides of the mathematical equation by 2, we have the following:

2 × cos⁻¹(u) = 0.5x × 2

x = 2cos⁻¹(u)

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Answer:

6 : 32

7 : 7

8 : 6 + 8 ÷ ( 2 + 2 )

9 : ( 10 - 4 ) * 7 + 5

Hope this helps!

Step-by-step explanation:

6 : ( 5*4 ) + ( 2*6 ) = 20 + 12 = 32

7 : 37 - ( 9*3 ) - 3 = 37 - 27 - 3 = 10 - 3 = 7

8 : 6 + 8 ÷ ( 2 + 2 ) = 6 + 8 ÷ 4 = 6 + 2 = 8

9 : ( 10 - 4 ) * 7 + 5 = 6 * 7 + 5 = 42 + 5 = 47

Answer:

√5 < 2.5 < 5

Step-by-step explanation:

√5= 2.23

therefore,

√5 < 2.5 < 5

Answer:

t = 8

Step-by-step explanation:

create the proportion

\(\frac{25}{40} =\frac{5}{t}\)

\(\frac{25}{40}\) simplifies down to \(\frac{5}{8}\)

t = 8

Answer:

8

Step-by-step explanation:

25/40=5/t

0.625=5/t

0.625*t=5

(0.625*t)/0.625=5/0.625

t=8

The measure of angle DCE in this problem is given as follows:

m < DCE = 22.5º.

The triangles in this problem are right triangles, meaning that the trigonometric ratios are used to find the measures.

The three trigonometric ratios are given as follows:

The segment DB is adjacent to angle of 38º, while the hypotenuse is of 12.2 cm, hence the length of segment DB is calculated as follows:

cos(38º) = DB/12.2

DB = 12.2 x cosine of 38 degrees

DB = 9.6 cm.

BE:ED = 3:1, means that segment DE is one-fourth of segment DB, and thus it's length is given as follows:

DE = 1/4 x 9.6

DE = 2.4 cm.

Then for the angle DCE, we have that the opposite side is of 2.4 cm while the adjacent side is of 5.8 cm, hence the tangent is used to find it's measure, as follows:

tan(x) = 2.4/5.8

x = arctan(2.4/5.8)

x = 22.5º

m < DCE = 22.5º.

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Answer:

x = 22.5°

Step-by-step explanation:

The round trip distance in miles from city 1 to city 3 is given as follows:

30 miles.

The matrix corresponding to the distances between each of the cities is given by the image presented at the end of the answer.

Looking at row 1, column 3, we have that the distance from city 1 to city 3 is of 15 miles.

For the round trip distance, we have to go back from city 3 to city 1, more 15 miles, hence the distance is given as follows:

2 x 15 = 30 miles.

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Answer:

Step-by-step explanation:

22.5 oz × (1 serving)/(2.5 oz) = 22.5/2.5 servings = 9 servings

Based on the information given about the combination, the number of different parts of fruits that can be selected from the bowl will be 6.

Since the bowl contains an apple, a plum, a pear, and a banana, the different pairs of fruit that can be selected from the bowl will be 4C2.

We can solve this further which will be:

= 4C2

= 4! /2! (4 - 2)!

= 4! / 2!2!

= (4 × 3 × 2)/ 2 × 2

= 24/4

= 6

Therefore, 6 different pairs of fruit can be selected.

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A function assigns the values. The maximum amount of students able to receive tickets is 178.

A function assigns the value of each element of one set to the other specific element of another set.

Let the maximum amount of students able to receive tickets be  represented by x. Josh is selling tickets for his school's performance. Each student receives 4 tickets for their family and 560 people are already coming. And the auditorium seats a maximum of 1275 people. Therefore, we can write,

1275 = 4x + 560

1275 - 560 = 4x

4x = 715

x = 178.75

Since the number should be a whole number therefore, the maximum amount of students able to receive tickets is 178.

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The number of people who live in San Francisco to the nearest thousand is; 884,000.

The number of people who live in Sacramento to the nearest thousand is; 502,000.

To round off a number to the nearest thousand, the hundreds place value digit is considered.

For San Francisco; since the hundred place digit is; 3; we have that; 884,363 ~~ 884,000.

For Sacramento; since the hundreds place digit is; 9; we have that; 501,901 ~~ 502,000.

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The graph that represents the function f(x) = -2sin(x) +37 is graph D

The graph of the function f(x) = -2sin(x) +37 is a sinusoidal wave with an amplitude of 2 and a vertical shift of 37. The negative sign in front of the sine function indicates that the wave is inverted or reflected about the x-axis.

In this graph, the maximum value of the function is 39 (when x = 0) and the minimum value is 35 (when x = π).

In conclusion, the graph that represents the function f(x) = -2sin(x) +37 is graph D

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Answer:

Find AC+CB

Step-by-step explanation:

Answer:

Find \(AC + CB\); 10

Find AB; 10

Step-By-Step Explanation:

\(AC (3) + CB (7) = 10\)

Find AB is the same thing, just phrased differently.

Answer:

Step-by-step explanation:

Answer:

80° = v + 55° ( Vertically Opposite angle)

v = 80° - 55°

v = 25°

Here, we have used the property of vertically opposite angles which states that the angles which are vertically opposite, measure the same which means they are equal.

Hope it helps you :)

Answer:

\(v = 25\)

Step-by-step explanation:

Let's say an angle with 80 missing is x

\(x + 80 = 180 \\ x = 180 - 80 \\ x = 100\)

\(x + 55 + v = 180 \\ 100 + 55 + v = 180 \\ 155 + v = 180 \\ v = 180 - 155 \\ v = 25\)

I hope I helped you^_^

Answer:

(4×3)÷2+1+2×6

=12÷2+1+2×6

=6+1+2×6

=6+1+12

=19

is the answer

Answer:

19

Step-by-step explanation:

(4*3)/2+1+2*6

=12/2+1+2*6

=6+1+2*6

=6+1+12

=19

Answer:

15 ft TRUST ME I LOVE MATH

Answer:

supplementary

Step-by-step explanation:

135 + 45 = 180

supplementary angle ALWAYS add up to  180.

Answer:

Confidence Interval = (1.41, 1.59)

Step-by-step explanation:

To construct a confidence interval for the population mean, we can use the following formula:

Confidence Interval = sample mean ± (margin of error * standard error)

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

Given the information provided, we can calculate the standard error as:

standard error = 2.16 / sqrt(1370) = 0.058

Then, we can calculate the margin of error as 0.12.

Substituting these values into the formula, we get:

Confidence Interval = 1.5 ± (0.12 * 0.058)

Confidence Interval = (1.41, 1.59)

Therefore, we can interpret the 95% confidence interval as follows: we are 95% confident that the true population mean of the number of days that people feel lonely in the past 7 days is between 1.41 and 1.59. This means that if we were to take many samples of 1370 subjects and compute the confidence intervals for each sample using the same method, we would expect about 95% of the intervals to contain the true population mean.