Solve the system of equations.
Choose your method:
2x - y = 7
x - y = 10

Answer:

its not b

Step-by-step explanation:

its c 27160 we went over this with my teacher

Answer:

Step-by-step explanation:

The best way to check a question like this one is to graph it. I've done that for you. The red line is the parent function; the blue line is parent shifted 4 units left.

Yes, you are right.

Answer:

Step-by-step explanation:

f(-5) = -(-5) + 1

        = 5 +1

        = 6

Answer:

f(-5) = -(-5) + 1

       = 5 +1

       = 6

Step-by-step explanation:

can i maybe get branlyest i only have 1 one rn it would help

Answer: After 5 years it’ll cost  $90.767.

Step-by-step explanation:

Answer:

First choice

Step-by-step explanation:

Check if a relation is a function by looking at the x's.

No repeated x's? Then it's a function.

Repeated x's but the y is the same y both times? It's a function.

Repeated x's and different y's? NOT A FUNCTION.

see image

9514 1404 393

Answer:

  1 solution

Step-by-step explanation:

The coefficients of x are different on each side of the equal sign, so this equation has one solution.

_____

Additional comment

If the x-coefficients are the same on each side of the equal sign, then you need to look at the constants. If they are the same, there are an infinite number of solutions; if they are different, no solutions.

This equation simplifies to ...

  3x -3 = 2x +9

  x = 12 . . . . . . . . add 3-2x to both sides

The solution of expression by applying distributive property and combining like terms,

⇒ x = 12

Given that,

The mathematical expression is,

⇒ 3(x - 1) = 2x + 9

Now, simplify the expression by applying distributive property and combining like terms,

⇒ 3(x - 1) = 2x + 9

Apply distributive property,

⇒ 3x - 3 = 2x + 9

Combine like terms,

⇒ 3x - 2x = 9 + 3

Therefore, the solution of expression is,

⇒ x = 12

To learn more about the mathematical expression visit:

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well, from 800 to 600 is 200 bucks.

if we take 800 to be the 100%, what is 200 off of it in percentage?

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 800 & 100\\ 200& x \end{array} \implies \cfrac{800}{200}=\cfrac{100}{x}\implies 4=\cfrac{100}{x} \\\\\\ 4x=100\implies x=\cfrac{100}{4}\implies x=25[/tex]

Answer:

12

Step-by-step explanation:

84-54=30

30/2.5=12

Answer:

C. 108

Step-by-step explanation: This is the correct answer on Edge 2021, just took the quiz and made a 100%. Hope this helps ^-^.

The value of 'x' is 108° . Option C

From the illustration,

Angle RQS is at Q = x degrees

Angles KLM is at L = x - 36 degrees

Note that they are corresponding angles

Corresponding angles sum up to 180°

Then equate both angles to 180 degrees

x + x - 36 = 180°

Collect like terms

2x = 180 + 36

2x = 216

Make 'x' subject of formula

x = 216 / 2

x = 108°

Therefore, the value of 'x' is 108° . Option C

Learn more about corresponding angles here:

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Answer:

3500

34+(8)(2)

−4

=66

Answer:

$39.75

Step-by-step explanation:

0.2 X 30 = 6

45.75 - 6 = 39.75

Answer:

100 in^2

Step-by-step explanation:

(15/21)^2 x 196 = 100

Answer:

The answer is 12.

Answer:

12

Step-by-step explanation:

To Find Median;

Solve;

Least to Greatest:

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

Hence Median = 12.

[RevyBreeze]

Answer:

Step-by-step explanation:

focus of the parabola is (2,0) and directrix is x=-2. Here,a=2.So, Equation becomes, y2=4∗2x⇒y2=8x, which is the required equation of parabola.

The equation of a parabola with the given focus and directrix is x²-10x+74=14y.

A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point, and a fixed line

Given that, a parabola has focus (5,7) and directrix y=0.

When the focus (h, k) of a parabola and the equation of the directrix y = c are given, the equation of the parabola is given by (x-h)²+k²-c²=2(k-c)y

Here, y=c=0

Now, (x-5)²+7²-0²=2(7-0)y

x²-10x+25+49=14y

x²-10x+74=14y

Therefore, the equation of a parabola is x²-10x+74=14y.

To learn more about the equation of a parabola visit:

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Find the circumference and area of a circle with a radius of 11 inches.

Answer:

69.12

Answer: 98 Degrees

Step-by-step explanation: A straight line is 180 degrees so, Take 180 minus 82 : 180 - 82 = 98 Degrees

Answer:

1

Step-by-step explanation

Since you are given two points you can calculate the slope by use the formula Y1-Y2/X1-X2.

In this case:

Y1 = 5

Y2 = 7

X1 = 7

X2 = 9

(5-7)/(7-9) = -2/-2 = 1

Answer:

i am so srry but i dont know but good luck

Step-by-step explanation:

The table is an illustration of a quadratic regression model

The function that best models the data is y = -60.4x^2 +348.1x -334.2

To determine the function that models the data, we make use of a graphing calculator.

Using the graphing calculator, we have the following calculation summary

a = -60.4

b = 348.1

c = -334.2

A quadratic regression model is represented as:

y = ax^2 + bx + c

So, we have:

y = -60.4x^2 +348.1x -334.2

Hence, the function that best models the data is y = -60.4x^2 +348.1x -334.2

Read more about regression models at:

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Answer:

your answer would be B

Step-by-step explanation:

every item is 9 dollars divide the cost by the number of items it is always 9 meaning 9 is the constant. hope this helps.

Answer:

18  

To verify the constant you only have to verify every option by adding those options by itself and the one that matches your information is the correct answer

Answer:

x = - 12, y = 9

Step-by-step explanation:

Given the 2 equations

3x + 6y = 18 → (1)

x + 3y = 15 → (2)

Multiplying (2) by - 3 and adding to (1) eliminates the term in x

- 3x - 9y = - 45 → (3)

Add (1) and (3) term by term to eliminate x

- 3y = - 27 ( divide both sides by - 3 )

y = 9

Substitute y = 9 into either of the 2 equations and evaluate for x

Substituting into (2)

x + 3(9) = 15

x + 27 = 15 ( subtract 27 from both sides )

x = - 12

Solution is (- 12, 9 )

Answer:

hello

they are

1 - 3 - 5 and  15

Step-by-step explanation:

Answer:

Step-by-step explanation:

1- Distribute

2-Combine like terms

3. divide on both sides

4- subtract from both sides

Answer:

112.50

Step-by-step explanation:

10% added 7.50 is 75

5% added to 7.50 is is 37.50

75+37.50= 112.50

Answer:

I think the answer is 9-2x/x+1

Answer:

[tex] \: \: \: \: \: \: \: [/tex]

I'm From Philippines

I hope we can be friends.

Answer:

The answer is $2000

Step-by-step explanation:

8 had to give an extra $50 each.

8 x 50 = 400

400 ÷ 2 ( the two that changed their mind) = 200

Each person was to give $200

10 × 200 = 2000