Evaluate the expression when c= -3 and x=4.
x-6c

The measure of m∠DBC in the semicircle is 90°

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

Equations are classified based on degree (value of highest exponents) as linear, quadratic, cubic and so on. Variables can be dependent or independent. Dependent variables depend on other variable while an independent variable do not depend.

From the image:

∠BAC = ∠BDC = 45° (angle in same segment are equal)

∠BCD = 90° (angle subtended at circumference by semicircle)

In triangle BDC:

∠BDC + ∠BCD + ∠DBC = 180° (angle in a triangle)

45 + 90 + ∠DBC = 180°

∠DBC = 90°

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I need help on it too. Can any one help me find the answer

Answer:

8

Step-by-step explanation:

Billy started with 15 apples.

Lost 2, and another 5, In total 7 apples were taken.

" Lost " Indicates subtraction.

The equation would look like this: 15 - 7.

Subtract.

Hence, your answer should be 8.

Hopes this helps!

Have a good day :).

Answer: 8

Step-by-step explanation: 15 - 2 = 13 and 13 - 5 = 8.

Answer:

$2139.58

Step-by-step explanation:

First, you find how much each paycheck is worth with taxes excluded, since she is only keeping 79% of the money you multiply 65,000 by 0.79=51350. Since she is getting paid twice a month, she is getting 24 paychecks a year. So you diving 51350 by 24 to get 2139.58333 but round down to 2139.58

A group of two or more inequalities in one or more variables is referred to as a system of inequalities. The system of inequalities graphed is y > x² - 4 and y < x² + 6.

A group of two or more inequalities in one or more variables is referred to as a system of inequalities. When a problem demands a variety of solutions and those solutions must satisfy many constraints, systems of inequalities are used.

A system of inequalities is one where the total number of inequalities is greater than or equal to the number of variables.

A system of inequalities may have,

The equation of the vertical parabola with y-intercept -4 is equal to

y = x² - 4.

The solution of the inequality is the shaded area above the dashed line.

The inequality must be y > x² - 4

2) The equation of the vertical parabola with y-intercept 6 is equal to y = x² + 6.

The solution of the inequality exists the shaded area below the dashed line. The inequality must be y < x² + 6

The system of inequalities graphed is

y > x² - 4

y < x² + 6

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The unknown measures of the right angle triangle are m∠V = 69° , RV = 12.85 and m∠R = 21°

A right triangle is a triangle that has one of its angles as 90 degrees.

Therefore, the side and angles of a right triangle can be found using trigonometric ratios.

Hence,

tan v = opposite / adjacent

opposite side = 12

adjacent side = 4.6

Therefore,

tan V = 12 / 4.6

v = tan⁻¹ 2.60869565217

v = 69.0265065627

m∠V = 69°

Let's find  m∠R

m∠R = 180 - 69 - 90

m∠R = 21°

Let's find RV

sin 69° = opposite / hypotenuse

sin 69 = 12 / h

cross multiply

h = 12 / sin 69

h = 12 / 0.93358042649

h = 12.8537402885

RV = 12.85 units

Therefore, the unknown side and angles of the triangle are as follows:

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The operation of Subtraction can be used to result in the smallest co-efficient term on the x term.

In the given question, Two functions are given f(x) = 3x - 1, and g(x) = 3x + 4. Now we have to find out which mathematical operation results in the smallest co-efficient term on x. We know that the basic Operations are:    

=> Now, we use the operation of Subtraction for the two functions. Which can be calculated by: f(x) - g(x), Calculating we get:

=> (3x - 1) - (3x - 4)

=> 3x -1 -3x + 4

=> 3

Here we get the Coefficient of x = 0 which is the lowest.

Hence, Subtraction will be used

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Answer:

32

Step-by-step explanation:

this expression cannot be simplified because there are no like terms to combine with the numbers in the expression.

the number that goes in the ? is 32

Answer:

19

Step-by-step explanation:

Answer:

9d :)

Step-by-step explanation:

So, we have the equation 5c + 9d - 5c

We combine our like terms which are 5c and -5c bc they both have the variable "c"

When we do 5c + -5c we get 0 since were adding a negative and a positive. This leaves us with just 9d, therefore, that's your answer!

The amount of rye seed and bluegrass seed used in the mixture is 109.8 and 70.2 pounds respective.

In response to the given question;

Let's say the amount of rye seed is 'x.'

The cost of rye seed = $6.50 per pound

Let's say the amount of bluegrass seed is 'y.'

The cost of bluegrass seed = $3.50 per pound.

The total seeds are 180 pounds.

Thus,

x + y = 180

x = 180 - y .......eq 1.

The other equation for the total cost of $5.33 per pound is;

6.50x + 3.50y = 5.33×180

Put the value of x from eq 1.

6.50(180 - y) + 3.50y = 959.4

1170 - 6.50y + 3.50y = 959.4

3y = 210.6

y = 70.2

x = 180 - 70.2 = 109.8

Thus, the amount of rye seed and bluegrass seed used in the mixture is 109.8 and 70.2 pounds respectively.

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Answer:

B

Step-by-step explanation:

Reflection over x axis

This is a reflection over the x-axis (B)

Answer:

2³ * 3² * 5

Step-by-step explanation:

Prime factorize 360 and find how many times each number is repeated and write in index notation.

360 = 36 * 10

       = 6 * 6 * 2 * 5

       = 2 * 3 * 2 * 3 * 2 * 5

      = 2 * 2 * 2 *  3 * 3 * 5

      = 2³ * 3² * 5

Y is 2.25 when x is 9.

The relationship between two values where their ratio equals a constant number is known as a direct proportion or direct variation. It is symbolized by the proportional sign (). According to the direct proportion formula, if y is directly proportional to x, we can state that y = kx, where k is a constant. The generic form of the direct proportion equation is also y = kx. where k is the proportionality constant.

Given Data

If x and y vary directly and y is 24 when x is 6, find y when x is 9.​

It is direct proportional

So,

y = kx

To find constant,

k = [tex]\frac{y}{x}[/tex]

x = 6 and y = 24

k = [tex]\frac{6}{24}[/tex]

k = [tex]\frac{1}{4}[/tex]

When x = 9,

k = [tex]\frac{1}{4}[/tex]

y = kx

y = [tex]\frac{1}{4}[/tex](9)

y = [tex]\frac{9}{4}[/tex]

y = 2.25

Y is 2.25 when x is 9.

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Answer:

66%

Step-by-step explanation:

99 of 150 is 66%

and 150 of 99 is 151%

The spread and consistency of data.

Answer:

-14 is the correct answer

Answer: 3:5

Step-by-step explanation:

We are looking for the ratio of baskets made to baskets attempted

made: attempted

9:15

We can divide each number by 3

9/3: 15/3

3:5

The ratio of baskets made: attempted  is 3:5

y = -x equation does not represent a direct variation.

y = 3x + 2

y=-3x

y = 0.5x

equations are represent a direct variation

How can you tell if there is a direct variation?

Simply build ratios from a table of values if you have one and wish to determine whether the data indicate a direct variation. You have a straight variation if all the ratios are the same.

The constant of variation is k = = 3, for instance, if y varies straight as x and y = 6 when x = 2. So, y = 3x serves as the equation to describe this direct variation.

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The value of m is 104/13

What is Fraction?

A fraction, which also symbolizes a piece of a whole, is a mathematical symbol for any number of equal parts. When expressed in common English, a fraction, such as 1/2, 8/5, or 3/4, represents the number of components of a specific size.

The value of m must be determined.

As can be seen in light of the query

The formula is m/4 = 26 / 13

The equation will now be solved for m m/4 = 26 / 13

The result of multiplying 4 on both sides is

(m/4) x 4 = (26/13) x 4

m = (26 x 4)/13

m = 104/13.

Consequently, m has a value of 104/13.

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The equation of the line containing the points (1, 3) and (-1,2) is [tex]y = \frac{1}{2}x + \frac{5}{2}[/tex].

So, Option(c) is the correct one.

Given points are (1, 3) and (-1,2).

The slope of the given line is =  [tex]\frac{y_{2} -y_{1} }{x_{2}-x_{1} }[/tex]

                                                 =  [tex]\frac{2 - 3}{-1 -1}[/tex]

                                                 =  [tex]\frac{-1}{-2}[/tex] = [tex]\frac{1}{2}[/tex]

The equation of the line is given by,

y - y₁ = m(x - x₁)

[tex]y - 3 = \frac{1}{2} (x - 1)[/tex]

[tex]y = \frac{1}{2}x - \frac{1}{2}+3[/tex]

[tex]y = \frac{1}{2}x + \frac{5}{2}[/tex]

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IT MEANS THE GRADIENT OF THE NEW EQUATION IS GOING TO BE

[tex] \frac{2}{5} [/tex]

TOO

[tex]2 = \frac{2}{5} ( - 7) + c \\ 2 = \frac{ - 14}{5} + c \\ c = 2 + \frac{14}{5} \\ c = \frac{24}{5} [/tex]

THE EQUATION PARALLEL TO THE ONE GIVEN NOW IS

[tex]y = \frac{2}{5} x + \frac{24}{5} [/tex]

Answer: C, D, E

Step-by-step explanation:

A negative multiplied by a negative is a positive. In option A, for example, a one is implied in front of the first negative sign, thus: -1 * (-1/2) = 1/2. The same goes for option B, leaving C, D, and E as the only negative values.

The answer is x=2.

[tex](6^{x}) ^{10} =(6^{12} )^{2} /6^{4}[/tex]

[tex]6^{10x} =(6^{12}) ^{2} -6^{4}[/tex]  

10x=24-4

10x=20

x=20/10

x=2

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Answer:

-3

Step-by-step explanation:

your x-axis has to be 0 then the point on the y-axis is the y-intercept

The number of children and the number of adults that swam in the swimming pool that day are 69 and 366 respectively.

Given that:-

Total number of people that swam in the swimming pool = 435

Price for children = 1.25

Price for adults = 2

Total receipts = 818.25

We have to find the number of  children and the number of adults that swam in the swimming pool that day.

Let the number of children that swam that day be x and,

the number of adults that swam that day be y.

Hence, we can write,

1.25x + 2y = 818.25  ...(1)

x + y = 435 ... (2)

Solving the linear equation in two variable by elimination method

Multiplying (2) by 2 , we get

2x + 2y = 870 ... (3)

(3) - (1)

0.75x = 870 - 818.25

0.75x = 51.75

x = 51.75/0.75

x = 69

From (2), we can write,

69 + y = 435

y = 435 - 69

y= 366

Hence, the number of children and the number of adults that swam that day are 69 and 366 respectively.

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The stages of the race ordered from shortest to longest are:

Stage 21 : 4%

Stage 4: 0.044 x 100 = 4.4%

Stage 8: (6 / 125) x 100 = 4.8%

Stage 1 : (11 / 200) x 100 = 5.5%

Stage 17 : 0.06 x 100 = 6%

The first step is to convert the given decimals, percentages and fractions to the same measure to aid comparison. All would be converted to percentages.

Percentage is the fraction of an amount expressed as number out of 100. In order to convert a number to a percentage, multiply by 100. The sign that represents percentage is %.

Stage 1 : (11 / 200) x 100 = 5.5%

Stage 4: 0.044 x 100 = 4.4%

Stage 8: (6 / 125) x 100 = 4.8%

Stage 17 : 0.06 x 100 = 6%

Stage 21 : 4%

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Each ribbon will be of 2/3 yards for her 6 dolls .

Division is one of the four fundamental arithmetic operations, or the process by which two numbers may be joined to produce a new number. Addition, subtraction, and multiplication make up the remaining operations. A division in mathematics is the dividing of a sum into equal portions. One can divide a group of 20 people into four groups of five, five groups of four, and so on.

length of each ribbon = 4 / 6 = 2/3 yards each

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1. The transformation is: A. rotation 90° clockwise about the origin.

2. Based on the alternate exterior angles theorem, the value of x is: 2.

3. x = 10

4. The slope of the given line is: A. 2

The slope of a line = change in y/change in x.

The theorem states that alternate exterior angles are congruent if they each lie on lines that are parallel to each other.

1. The transformation that took UVWX to U'V'W'X' is: A. rotation 90° clockwise about the origin.

2. 26x - 2 = 50 [based on the alternate exterior angles theorem]

Solve for x

26x = 50 + 2

26x = 52

x = 52/26

x = 2

The value of x is: D. 2.

3. 9x + 15 + 6x + 15 = 180 [based on the same-side interior angles theorem]

Solve for x

15x + 30 = 180

15x = 180 - 30

15x = 150

x = 150/15

x = 10

The value of x is: C. 10

4. Using two points on the line, (1, 1) and (-1, -3), we have:

Slope of the line = (-3 - 1)/(-1 - 1) = -4/-2

Slope of the line = 2

The slope is: A. 2

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The area of the parallelogram based on the given parameters is 0.0324 m²

Area of the parallelogram = Base × height

= 0.36 m × 0.09m

= 0.0324 m²

Total cost of Lilian's apple = Cost of each pound of apple × Weight of Lilian's apple

= $1.77 × 1.32 lb

= $2.3364

Ethan:

3.045 × 1.3

= 3.9585

Anica:

3.045 × 1.3

= 39.585

Ethan is more correct because he moved the decimal point 4 places to the left.

Total mass of the green rope = Length of the green rope × Mass of each meter of the rope

= 60.5 × 0.052

= 3.146 kg

0.102 × 7.3

= 0.7446

Therefore, the area of the parallelogram when calculated is 0.0324 m²

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