i really need help on thisss

Answer:

1) Rearrange the equation so "y" is on the left and everything else on the right.

2) Plot the "y=" line (make it a solid line for y≤ or y≥, and a dashed line for y< or y>)

3) Shade above the line for a "greater than" (y> or y≥) or below the line for a "less than" (y< or y≤).

Step-by-step explanation:

Answer:

A. (-1, 3)

Step-by-step explanation:

→A solution is when the two lines on the graph intersect at a certain point. Looking at this graph, you can clearly see that the lines intersect at the point of (-1, 3).

This means the correct answer is "A."

Answer: Yes I agree with Jada. His approach is correct.

Step-by-step explanation: The question requires the student to write an equivalent equation with fewer terms. Nonetheless, this does not prevent applying a mathematically correct approach.

(1) Noah is wrong and the reason is that the initial step is mathematically incorrect. The expression on the right hand side reads 3(4 - 9x), therefore starting with "8 - 3" is very wrong. The right step was to take one side which is 8 and take the other side which is 3(4 - 9x).

(2) Lin is wrong and the reason is that she started inside the parenthesis and this also is mathematically incorrect. The digits inside the parenthesis are "not like terms" and hence calculating 4 - 9x = -5x is very incorrect (the same way you cannot correctly calculate 500 metres minus 200 inches. You must make sure they are both in meters or in inches, that is both must be like terms).

(3) Jada is very correct in using the distributive property and ended up with the only correct solution. The digits on the right hand side of the expression  was solved first and that resulted in -12 + 27x. The reason being that the number outside the parenthesis which is -3, multiplied both digits inside the parenthesis. The minus sign had a major effect, and after simplifying the right hand side the expression now becomes;

8 - 12 + 27x

Since the like terms are 8 and 12, you can simplify further to become

- 4 + 27x OR the expression can be rearranged as 27x - 4

(4) Andre is not correct and the reason is that although he used the distributive property, he made a slight mistake while solving for the right side of the expression. What Andre did was

-3(4 - 9x)

-12 - 27x

Remember that when a negative value multiplies another negative value the answer is positive. Therefore -3 times -9x should have been +27x, just like Jada did as shown above.

From that point onward, his answer would be incorrect.

Answer:

^ man straight up earns brainliest at this point

Answer:

Its answer d

Step-by-step explanation:

I took the quiz  

A 2-column table with 4 rows. Column 1 is labeled x with entries 2, 4, 6, 8. Column 2 is labeled y with entries negative 4, negative 12, negative 20, negative 28.

A 2-column table with 4 rows. Column 1 is labeled x with entries 2, 4, 6, and 8. Column 2 is labeled y with entries negative 4, negative 12, negative 20, and negative 28.

The answer is option D.

Slope measures the rate of change in the dependent variable as the independent variable changes. The greater the slope the steeper the line. Consider the linear function: y = a + bx. b is the slope of the line.

A steeper slope in a graph means that the rate of change is faster.

Learn more about linear function here: brainly.com/question/2418168

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Answer:

$83.2

Step-by-step explanation:

price= $128

sale discount= 35%

sale price= $128- 35%= $128*0.65= $83.2

Answer:

83.2$

Step-by-step explanation:

Given:

A docking station for an iPod cost 128$.

The discount percent is 35%.

Solve for:

The sale price of docking station.

Solution:

The amount of discounted price (DP) could be calculated by formula:

DP = original price x discount percent

     = 128 x 35%

     = 128 x 35/100

     = 44.8$

=> The sale price (P) is:

P = original price - discounted price

  = 128 - 44.8

  = 83.2$

Hope this helps!

Answer:

$128.75

Step-by-step explanation:

Gross Pay = $1287.50

Income Tax  = 10% of Gross Pay

Income Tax  = 10% of $1287.50

Income Tax  = 10/100 * $1287.50 = $128.75

Thus, federal income tax is $128.75.

Answer: A =350 (1.05)^t

Step-by-step explanation:

Hi, to answer this question we have to apply an exponential growth function:

A = P (1 + r) t  

Where:

p = original population

r = growing rate (decimal form; 5/100=0.05)

t= years

A = population after t years

Replacing with the values given:

A = 350 (1+0.05)^t

A =350 (1.05)^t

Feel free to ask for more if needed or if you did not understand something.

-0.45 x + 0.33 = -0.66

Adding -0.33 to both sides

-0.45 x = -0.99

Dividing both sides by -0.45

x = -0.99 / -0.45 = 2.2

Answer: x = 2.2, last choice

Answer:

Two thirds of 56 is simply two thirds times 56, which can be written as follows:

Two/thirds x 56

Furthermore, you can convert "two" to "2" and "thirds" to "3" and then the equation and answer is:

2/3 x 56 = 37.33

Step-by-step explanation:

The multiplication of the numbers 56 and 2/3 will be 37.33.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

It is also known as the product. If the object n is given to m times then we just simply multiply them.

The numbers are given below.

56 and 2/3

Then the multiplication of the numbers 56 and 2/3 will be

⇒ 56 x (2/3)

⇒ 112/3

⇒ 37.33

Thus, the multiplication of the numbers 56 and 2/3 will be 37.33.

More about the Algebra link is given below.

https://brainly.com/question/953809

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Answer:

50 = x

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the opposite interior angles

105 = 55+x

Subtract 55 from each side

105-55 = 55-55+x

50 = x

Answer:

A

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

105° is an exterior angle of the triangle , thus

x + 55 = 105° ( subtract 55 from both sides )

x = 50° → A

Answer:

40 copies for $3000

Step-by-step explanation:

First: The Equation

y=(20+x)(100-x)

This shows how for every new painting, the price will go down.

y=2000+80x-x²

Convert it to standard form: ax²+bx+c

You can now choose to graph it or find the vertex form. For the limit of time, I will just use a graph.

The vertex, (40,3000), is your answer, where the x value is the number of paintings and the y value the money made.

Answer:

[tex] \boxed{q = 0.8} [/tex]

Step-by-step explanation:

[tex] = > 0.48 + 5.7q = 6.3q \\ \\ = > 6.3q = 5.7q + 0.48 \\ \\ = > 6.3q - 5.7q = 0.48 \\ \\ = > 0.6q = 0.48 \\ \\ = > q = \frac{0.48}{0.6} \\ \\ = > q = 0.8[/tex]

Answer:

q = 0.8

Step-by-step explanation:

isolate the variable and solve

Answer: x= 6.6667

Step-by-step explanation:

subtract 15 on both sides=20

divide 3 on both sides

Answer:

6.666

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

the answer is 2

Step-by-step explanation:

3+5=8

8÷4=2

A square typically has the larger area than a rectangle of similar size.

120 / 4 sides = 30 feet per side

30 x 30 = 900 square feet

Answer: 9π/2

Step-by-step explanation:

A semicircle is half of a circle. Therefore, you must divide the area by 2.

[tex]A=\frac{\pi r^2 }{2}[/tex]

Since we know the radius, we can directly plug it into the formula.

[tex]A=\frac{\pi (3)^2}{2} =\frac{9\pi }{2}[/tex]

Since the problem stated to give the answer in terms of π, 9π/2 is our answer.

Answer:

[tex]\frac{9\pi }{2}[/tex] cm²

Step-by-step explanation:

The area of a semicircle can be expressed by the formula [tex]\frac{\pi r^{2} }{2} = A[/tex].

When you plug in the radius, you get [tex]\frac{\pi 3^{2} }{2} = \frac{\pi 9}{2} = \frac{9\pi }{2}[/tex].

Answer:

Area is πr²

Step-by-step explanation:

The area of a circle is given as

A = πr²

Where r, which is half of the circumference of the circle, is the radius of the circle.

Where π = 3.14...

Answer:

πr2.

Step-by-step explanation:

The shape changed, but the amount of space inside the shape remained the same. The space inside the parallelogram is the same as the space, or area, inside the circle. The area of the circle is 0.5 × circumference × radius = πr2.

Answer:

9 = (9 x 8)/8 = 72/8

10 =(10 x 8)/8 = 80/8

=> Six rational numbers between 9 and 10​ could be selected as:

73/8, 74/8, 75/8, 76/8, 77/8, 78/8

Hope this helps!

:)

Answer:

70

Step-by-step explanation:

15% said hockey and 10% said gymnastics which together is 25% of the students.

25% of 280 is 70.

There is a  1 in 6 chance.

Answer:

0.17

Step-by-step explanation:

Answer:

H = 120°

Step-by-step explanation:

The sum of the internal angles of a polygon with n sides is given by the formula:

S = (n-2)*180

So, for a pentagon, we have n = 5, then:

S = (5-2)*180 = 540°

So we have that:

M + A + T + H + S = 540° (eq1)

M = T = H (eq2)

A + S = 180° (eq3)

Using the second and third equation in the first one, we have:

H + H + H + 180 = 540

3H = 360

H = 120°

Answer:

4502 pieces of grass

Step-by-step explanation:

The radius of the semicircle is 36 meters, so its perimeter is:

Perimeter = pi * radius = 113.097 m

The perimeter of both semicircles is 2 * 113.097 = 226.194 m

So if the total perimeter is 395, the length of the rectangle is:

395 = 226.194 + 2*length

2*length = 168.8

length = 84.4 m

The width of the rectangle is 2 times the radius of the semicircle, so:

width = 2 * 36 = 72 m

Then the area of the rectangle is:

Area = length * width = 84.4 * 72 = 6076.8 m2

To find the number of grass pieces, we divide the rectangle area by the grass piece area:

number of pieces = 6076.8 / 1.35 = 4501.33 pieces

So we will need 4502 pieces to cover the rectangular area.

Answer:

I believe it would be C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

In the beginning it is increasing then it decreased but you look at the end which is staying the same

Hope this helps plz mark brainliest

Answer:

The inequality that can be used to figure out how many cases Sandra is working on is: [tex]x + 8 > 29[/tex]

Step-by-step explanation:

She is working on "x" cases, then she adds 8 more to that number, therefore it is "x + 8" and we also know that the total number of cases she's working is more than 29, in other words, it is greater than 29. With this in mind we can create the following inequality:

[tex]x + 8 > 29[/tex]

The inequality that can be used to figure out how many cases Sandra is working on is: [tex]x + 8 > 29[/tex]

Answer:

No, because they are parallel.

Kevin says that lines p and m will eventually intersect. The statement is incorrect because lines p and m are parallel.

Lines in a plane that are consistently spaced apart are known as parallel lines. Parallel lines don't cross each other. Perpendicular lines are those that cross at a straight angle of 90 degrees.

It is given that lines A and B intersect. Plane A contains lines p, m, and n. Line n is horizontal on the plane. Lines p and m are both going in the same direction and are identical. Plane B contains vertical line l which forms a right angle with line n.

In the image attached with the answer below it is observed that the two lines p and m are in the same plane and are parallel to each other.

Therefore, the statement given by Kevin is incorrect.

To know more about parallel and perpendicular lines follow

brainly.com/question/7098341

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Step-by-step explanation:

not function because students has unique id

Answer:

Not function

Step-by-step explanation:

Answer:

Step-by-step explanation:

2/3, 7/10, 11/15, 4/5

Answer:

so the answer is y=5,x=-3

Answer:

7/20

Step-by-step explanation: