To reduce inventory, Millennium Games offers single-game CDs at a $5 discount. Roger buys 4 of these single-game CDs for $80. Write and solve an equation to determine the original price of a single-game CD.

Answer:

Its not a rhombus its a triangle and your answer is 600

Step-by-step explanation:

mutlpiy 20 by 30 to get your answer

Answer:

(2x3) x 4= 2 (3x4)

Depending on the length of the two sides of the triangle the length could be smaller than 1.

The answer that is not true is :

B. It is always greater than 1

9514 1404 393

Answer:

  y = 10

Step-by-step explanation:

Put -3 where x is and solve for y.

  4(-3) +3y = 18

  -4 +y = 6 . . . . . . . divide by 3

  y = 10 . . . . . . . . . add 4

Answer:

4

Step-by-step explanation:

because BC=CD as it is parallel that means all the sides are equal

The value of CD is 20/3.

The correct option is (A).

Similar triangles are triangles that have the same shape, but their sizes may vary. All equilateral triangles, squares of any side lengths are examples of similar objects. In other words, if two triangles are similar, then their corresponding angles are congruent and corresponding sides are in equal proportion.

In ACB and ECD,

angle CAB= angle DEC

angle CBA= angle EDC

angle DCE = angle ACB

By, AA similarity criteria,

ΔACB~ΔECD

Now,

AC/CE= BC/CD

3/5=4/CD

CD= 20/3

Learn more about similarity property here:

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Answers and Step-by-step explanation:

Question 8:

Since angle BCD is opposite angle DAB, this means that they are similar angles as the shape is a parallelogram, and so BCD is 115 degrees, or answer D

Question 3:

We can use process of elimination on this question - The first choice is all squares are rhombuses, which is true. The second question is all rectangles are squares, which is not true, therefore the answer is B

Question 4:

m angle 2 is equal to 106, as it is similar to question 8, and angle 3 is equal to 360 (the total degrees of the shape) - 106 - 106, then divided by 2 and divided by 2 again.

This will equal to angle 3 being 37 degrees, and the answer will be C

Question 5:

We can draw a rectangle from this graph. We can also tell that, in theory, the diagonals are the same, that rules out answer B, and also 5x-5 = x+11

We can then find out x.

+5 on both sides

5x = x+16

-x on both sides

4x = 16

x = 4.

Therefore, each of the sides will be 4+11 = 15, and the answer being C

Answer:

1) LInear Pair

2) Adjacent (but not a linear pair)

3) Complementary Angles

4) Vertical angles

Step-by-step explanation:

1st pair of angles are linear because they sum to 180 and are on the same line

2nd pair of angles are adjacent but not linear because they're not on a line

3rd pair of angles are complementary because they're neighboring a 90° angle and the three angles share the same line.

4th pair of angles are vertical because they're across from each other.

Answers:

The answers are given from top to bottom in that exact order.

=======================================================

Explanations:

Answer:

{(-5, -7),(-5,4), (-2,-8),(3,5)}

Step-by-step explanation:

Functions can't use the same x-coordinate twice

Answer:

f(x) = -3x^2 + 10x + 3

Step-by-step explanation:

(0,3) (2,11)(3,6)

Using the form ax^2 + bx + c = y

From the first set we know that c = 3

Write an equation for the last two sets

x=2; y=11

a(2^2) + b(2) + 3 = 11

4a + 2b = 11 - 3

4a + 2b = 8

simplify divide by 2

2a + b = 4

and

x=3, y=6

9a + 3b + 3 = 6

9a + 3b = 6 - 3

9a + 3b = 3

simplify divide by 3

3a + b = 1

:

Use elimination to find a

3a + b = 1

2a + b = 4

--------------subtracting eliminate b

a = -3

Find b using the equation 2a + b = 4

2(-3) + b = 4

b = 4 + 6

b = 10

:

The equation: f(x) = -3x^2 + 10x + 3

Answer:

Concept:

Here, we need to know the idea of the circle equation.

Circle equation: (x - h)² + (y - k)² = r²

(h, k) = center

r = radius

x = variable

y = variable

Solve:

Given expression

(x - 3)² + y² = 9

Find the point of the center

(h, k) = [tex]\boxed{(3,0)}[/tex]

Find the length of the radius

r² = 9

[tex]\boxed{r=3}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Answer:

It is 9214.2

Step-by-step explanation:

[tex](125 + 47 - 2.5) \div 140 + 37 \times 249[/tex]

first solve the bracket:

[tex] = (169.5) \div 140 + 37 \times 249[/tex]

form brackets of division and multiplication:

[tex] = (169.5 \div 140) + (37 \times 249)[/tex]

solve the brackets:

[tex] = 1.211 + 9213[/tex]

then add:

[tex] = 9214.211[/tex]

Answer:

sum is 19,999,998 and difference is 0

please brainleist my answer

Answer:

Step-by-step explanation:

The greatest number of 7-digits number is 9,999,999

The least number of 7-digits number........is 1,000,000

Their sum......................................................... is 10,999,999

Their différence ............................................. is  8,999,999

Answer:

A.

Step-by-step explanation:

Answer:

(x-10)/4

Step-by-step explanation:

10 less than x means,

x - 10

and the divide by 4.

=> (x-10)/4

Answer:

x-10/4

10 less than x

x-10

divided by 4

/4

You are falling by [tex]32[/tex],

[tex]128, 128 - 32, 128 - 32\cdot2,\dots[/tex]

In general your sequence is defined as,

[tex]a_n=128-32\cdot n[/tex] where [tex]0\leq n \lt\infty[/tex].

The question is at which [tex]n[/tex] does the value [tex]a_n=0[/tex].

If you divide [tex]128[/tex] with [tex]32[/tex] you get the number of steps needed to stuff [tex]128[/tex] with [tex]32[/tex], [tex]4[/tex].

If you plug in [tex]n=4[/tex], you get [tex]a_4=128-32\cdot4[/tex], since [tex]32\cdot4=128[/tex] you get [tex]a_4=0[/tex].

The zero turn of the arithmetic sequence is thus at [tex]n=4[/tex].

Hope this helps :)

Answer:

$21.10

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The lateral area of the regular pyramid shown in the diagram is 540 unit². Hence, option B is the right choice.

The area of a figure is the two-dimensional space enclosed within the boundary of that figure.

In the question, we are asked to find the lateral area of the regular pyramid shown.

A regular pyramid is one with all lateral faces the same.

In the given diagram, the pyramid shown has a hexagonal base. So it has 6 equal lateral faces.

Each lateral face is a triangle, with the base as 12 units and height as 15 units.

Thus, the area of one lateral face = (1/2)*12*15 units² = 90 units².

Thus, the total lateral surface area = Lateral surface area of one lateral face*number of lateral faces = 90 units²*6 = 540 units².

Thus, the lateral area of the regular pyramid shown in the diagram is 540 unit². Hence, option B is the right choice.

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Answer:

(2,3.5)

Step-by-step explanation:

B=(1,2)

A=(3,5)

Answer:

example of Analog computer=

Operational amplifiers

Answer:

there are many types eg cosmic engine

Answer:

To find this answer, you would need to find how many miles 1 gallon of gas will take them. To find this, you would do 290÷8=36.25. So with this information, you will be able to find out how much gas it would take to travel 400 miles. You would do 400÷36.25=11.03. 11.03 would be how many gallons of gas is used to travel 400 miles. Hope this helps! :)

Step-by-step explanation:

3. x = 45

4. 73°

Step-by-step explanation:

3. The sum of the interior angles of a pentagon is 540° so

90° + 112° + 2x + (2x + 10) + 148° = 540°

Simplifying this, we get

4x + 360 = 540 => 4x = 180 or x = 45

4. The sum of the interior angles of a pentagon is 540° which means that the unknown interior angle is 107°. This angle is a supplementary angle to [tex]\angle{A}[/tex] so [tex]\angle{A}[/tex] is

180° - 107° = 73°.

Answer:

-6

x - 6 is the equation, (unless there was a y, and it pasted wrong)

Step-by-step explanation:

You do additive property of equality by adding 1 to both sides.

-6x - 1 = 35

= -6x - 1 + 1 = 35 + 1

= -6x = 36

Division property of equality by dividing both sides by -6 or 6

= -6/-6x = 36/-6

= 1x = -6

x = -6

Answer:

15% for both games

Step-by-step explanation:

30%÷2=15%

Answer:

1611.00

Step-by-step explanation:

You have $1611.00 in the account in 10 years. The correct option is B.

Interest that compounded continuously to the principal amount. This interest rate provides exponential growth to a period of time.

Formula of continuous compound interest rate;

F(t) = a(e[tex])^{rt}[/tex]

, where a is the principal amount, r is the interest rate and t is the time period.

Given:

You invest $800 into an annuity account that pays 7% annual interest, compounded continuously.

And the formula is given by:

F(t) = a(e[tex])^{rt}[/tex]

According to the question,

Investment a = $800

Time period = 10 years.

And the interest rate r = 7%

Converting interest rate into decimals,

r = 0.07

Substituting all the values top the formula,

F(t) = a(e[tex])^{rt}[/tex]

F(t) = (800)(e[tex])^{(0.07)(10)}[/tex]

F(t) = (800)(e[tex])^{(0.7)}[/tex]

F(t) = 1611

F(t) = $1611.00

Therefore, you have $1611.00 in account.

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Answer:

Step-by-step explanation:

60  

600

Answer:

(3 ± √23 * i) /4

Step-by-step explanation:

To solve this, we can apply the Quadratic Equation.

In an equation of form ax²+bx+c = 0, we can solve for x by applying the Quadratic Equation, or x = (-b ± √(b²-4ac))/(2a)

Matching up values, a is what's multiplied by x², b is what's multiplied by x, and c is the constant, so a = 2, b = -3, and c = 4

Plugging these values into our equation, we get

x = (-b ± √(b²-4ac))/(2a)

x = (-(-3) ± √(3²-4(2)(4)))/(2(2))

= (3 ± √(9-32))/4

= (3 ± √(-23))/4

= (3 ± √23 * i) /4