solve this
- 7x - ( - 15y) - ( - 2x) + ( - 6y)​

Answer:

I’m thinking it’s C, 119 degrees

Step-by-step explanation:

180 - 61 =119

Answer:

$669.60

Step-by-step explanation:

item with an original price tag of $775.00 that is marked down by 20% will have a sales price of $620.00 plus 8% tax

Answer:

c 57

Step-by-step explanation:

The statement that must be true is (c) If a quadrilateral has opposite sides that are both congruent and parallel, then it is a parallelogram.

A parallelogram has parallel and congruent opposite sides.

However, the following are true about parallelograms at:

Hence, the true statement is (c)

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Answer:

60

Step-by-step explanation:

Let's name "a number" "q."

The expression we can set up is 6+9q

Plug 6 in for q.

6+9(6)

6+54

60

Answer:

Lateral surface area is 847.8 centimeters^2

Step-by-step explanation:

The formula for determining the lateral surface area of a cylinder is expressed as

Lateral surface area = 2πrh

Where

r = radius of the cylinder

h = the height of the cylinder

From the information given,

r = 9 centimeters

h = 15 centimeters

π = 3.14

Lateral surface area = 2 × 3.14 × 9 × 15 = 847.8 centimeters^2

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Answer:

0.00411522633744855967078189300412 or .004

Step-by-step explanation:

81/19683

The answer is:

Work/explanation:

Bear in mind that the sum of all the angles in a triangle is 180°.

Given two angles, we can easily find the third one.

Let's call it x.

Next, we set up an equation:

\(\sf{54+87+x=180}\)

\(\sf{141+x=180}\)

Subtract 141 on each side.

\(\sf{x=180-141}\)

\(\sf{x=39}\)

The inequality system that is represented in the graph are-

y < -x -1 and y ≤ x + 2.

Consider two point on dotted line.

(-1, 0) and (-2, 1)

Fine slope m:

m = (1 - 0)/(-2 + 1)

m = -1

Equation of line:

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

y = -x -1

In the  inequality system.

y < -x -1

Consider two point on bold line.

(0,2) and (-2, 0)

Fine slope m:

m = (0 - 2)/(-2 -0)

m = 1

Equation of line:

y - 2 = (1)(x + 0)

y = x + 2

In the inequality system.

y ≤ x + 2

Thus, the inequality system that is represented in the graph are-

y < -x -1 and y ≤ x + 2.

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The domain and range of the graph above in interval notation include the following:

Domain = [-6, 3]

Range = [-3, 3]

In Mathematics and Geometry, a domain refers to the set of all real numbers (x-values) for which a particular function (equation) is defined.

In Mathematics and Geometry, the horizontal portion of any graph is used to represent all domain values and they are both read and written from smaller to larger numerical values, which simply means from the left of any graph to the right.

By critically observing the graph shown in the image attached above, we can reasonably and logically deduce the following domain and range:

Domain = [-6, 3] or -6 ≤ x < 3.

Range = [-3, 3] or -3 < y < 3

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Answer:

0.5

Step-by-step explanation:

We have to find a  number which is greater than the absolute value of -3/8.

Absolute value of -3/8 = 3/8

3/8=0.375

Now, we have to find a number which is greater than 0.375

1/4=0.25

0.25 is smaller than 0.375

0.5 is greater than 0.375

also -5/8 and -1/8 are less than 0.375

Hence, the only number which is greater than the absolute value of -3/8 is:

0.5

Step-by-step explanation:

Answer:

\({ \rm{f(x) = 2 {x}^{4} - 3 {x}^{2} + 5 }}\)

• for f(-1), substitute x with -1

(a) The amplitude of the function is 2.

(b) The amplitude of the function is 3.

Amplitude is interval between the resting position and the maximum migration of the wave.

Formula for amplitude of the function is:

y = A sin (ωt + Ф) or y = A cos (ωt + Ф), where A represent the amplitude.

Given:

(a) y = 2 cos [3(Ф + 45)]

Formula for amplitude is:

y = A cos (ωt + Ф)

(b) y = 3 sin [2(Ф - 90)]

Formula for amplitude is

y = A sin (ωt + Ф)

After compare amplitude with equation than we get amplitudes are 2 and 3.

Therefore, the amplitude of the following function are 2 and 3 respectively.

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Answer:

3

Step-by-step explanation:

The answer is three because u need to simply the fractions

Answer:

median and/or mean of the data

Step-by-step explanation:

The spread is the range of the data. And, the shape describes the type of graph. The four ways to describe shape are whether it is symmetric, how many peaks it has, if it is skewed to the left or right, and whether it is uniform.

The function g(x) = 4x² - 28x + 49 can be rewritten as g(x) = 4(x - 7/2)² - 147 after completing the square.

To complete the square for the function g(x) = 4x² - 28x + 49, we follow these steps:

Step 1: Divide the coefficient of x by 2 and square the result.

  (Coefficient of x) / 2 = -28/2 = -14

  (-14)² = 196

Step 2: Add and subtract the value obtained in Step 1 inside the parentheses.

  g(x) = 4x² - 28x + 49

  = 4x² - 28x + 196 - 196 + 49

Step 3: Rearrange the terms and factor the perfect square trinomial.

  g(x) = (4x² - 28x + 196) - 196 + 49

  = 4(x² - 7x + 49) - 147

  = 4(x² - 7x + 49) - 147

Step 4: Write the perfect square trinomial as the square of a binomial.

  g(x) = 4(x - 7/2)² - 147

Therefore, the function g(x) = 4x² - 28x + 49 can be rewritten as g(x) = 4(x - 7/2)² - 147 after completing the square.

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The probable question may be:

Rewrite the function by completing the square.

g(x)=4x²-28x +49

g(x)= ____  (x+___ )²+____.

The tip was $7.77 in total, and it is a 18.5% of the bill cost.

Here we know that the bill was $42, while the family spend a total of $49.77

Then the amount for the tip is equal to the difference between the bill and the amount that the family spends.

Tip = $49.77 - $42  = $7.77

Now we want to see which percentage of the bill this is, to check that, we need to take the quotient between the tip and the bill, and multiply that by 100%, we will get:

percentage = ($7.77/$42)*100%

percentage = (0.185)*100% = 18.5%

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Answer: 2027.34

Step-by-step explanation:

first you plug in 10 for x

after you squared and multiplied you add

then it should come out to be 2027.34

In linear equation, 2027 .34 millions of smartphone units will be shipped worldwide in 2019.

What in mathematics is a linear equation?

An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.

                               Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

S(x)=-5.11x^2+243.57x+102.64   ...............1

For smartphone skipped in 2019

  x = 2019 - 2009

     x = 10

putting x = 10 in (1)

     S( 10 ) = -5.11 (10)² + 243.57 * 10 + 102.64

                 = -511 + 2435.7 + 102.64

               = 2027 .34

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The complete question is -

The total number (in millions) of smartphone units shipped worldwide from 2009 to 2016 is given by S(x)=-5.11x^2+243.57x+102.64. where is the number of years after 2009. Assuming the trend continues, how many millions of smartphone units will be shipped worldwide in 2019? (Do not round your answer.)

(Source: Statista 2017)

Answer:

distribute

2(w-1)

a(b-c)=ab-ac

(3)(5)+(2)(w)+(2)(−1)

=15+2w+−2

combine like terms

15+2w+−2

=(2w)+(15+−2)

=

Step-by-step explanation:

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Answer:

6

Step-by-step explanation:

Answer: 6
The factors of 12 are: 1, 2, 3, 4, 6, 12

The factors of 18 are: 1, 2, 3, 6, 9, 18

The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30

Then the greatest common factor is 6.

It would take him 400 minutes or 6.6 hours to complete 8 practice test. as a fraction it would be 33 over 5

Plane ADF is another way to label Plane J.

In order to determine which of the given options is another way to label Plane J, we need to first identify the key characteristics of Plane J.

These characteristics are its points, lines, and planes that it contains. We can then use these characteristics to compare and match them with the given options.

Here are the key characteristics of Plane J: Points: J, A, D Lines: JA, JD, AD Planes: Plane J Now let's examine each option to see which one matches the characteristics of Plane J: Option A: Plane h This option is not a match since Plane h is not one of the planes that contain the points J, A, and D.

Option B: Plane ABD This option is not a match since Plane ABD contains points A, B, and D but not point J.

Option C: Plane EFG This option is not a match since Plane EFG contains points E, F, and G but not point J.

Option D: Plane ADF This option is a match since Plane ADF contains points A, D, and F which are all points that are contained in Plane J.

Therefore, Plane ADF is another way to label Plane J.

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Answer:

The correct option is C

Step-by-step explanation:

ANOVA is the correct option because it can be used to carry out comparison of average of more than  two groups  

The relative frequency of spinning an even number is 26%.

What is probability?

Probability is a measure of the likelihood or chance of an event occurring. It is a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

The total number of times the spinner was spun is:

8 + 6 + 9 + 11 + 9 + 7 = 50

To find the relative frequency of spinning an even number, we need to add up the number of times an even number was spun, which are 2 and 4:

2 + 11 = 13

The relative frequency of spinning an even number is the number of times an even number was spun divided by the total number of spins:

Relative frequency of spinning an even number = 13/50

Relative frequency of spinning an even number = 0.26 or 26%

Therefore, the relative frequency of spinning an even number is 26%.

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Answer:

Step-by-step explanation:

The Area of a triangle is expressed  as 1/2 * base * height. If uma is planning to decorate a blanket with a triangular shape that has a base of 5 centimetres and a height of 7 centimetres, area of the blanket will be expressed as shown;

Area of the blanget = 1/2 * 7 * 5

Area of a blanket = 35/2 = 17.5cm²

If she plans to cut out 68 triangles with these dimensions, the total area will be total number of triangles * area of one triangle i.e 68 * 17.5 = 1,190cm²

Answer:

The maximum profit the florist will earn from selling celebration bouquets is $725.

The florist will break-even after one-dollar decreases when her profit is zero. From the graph, this occurs at x = 10. So the florist will break-even after 10 one-dollar decreases.

The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is (0, 10). This is because the profit is positive for values of x between 0 and 10, and becomes negative after 10.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Required function:

Time required to pay all money. At this time P = 0

Since w > 13, John needs 14 weeks

We will start with multiplying 9 by 4

Then multiply 9 by -2i

then multiply -6i by 4

Then multiply -6i by -2i

The value of i^2 is -1, then multiply 12 by -1

Now, we will collect them together

We will add the like terms

The answer is c

A linear function is defined as y = mx + b, in which m is the slope and b is the y-intercept.

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

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