What are coordinates the of y=1.25x-3

Jamie purchased a DVD that was on sale for 15% off. The sales tax in her county is 5%. Let y represent the original price of the

xxTIMURxx [149]

Answer:

Q1) Final cost = y*0.85*1.05

Q2) Perimeter = 0.1*x - 16

Q3) One over five ( m - 100)

Step-by-step explanation:

We are given three question as follows:

Q1) Jamie purchased a DVD that was on sale for 15% off. The sales tax in her county is 5%. Let y represent the original price of the DVD. Write an expression that can be used to determine the final cost of the DVD.

Solution:

Note: The effect of each percentage on original price is as follows, where y is the original price of the DVD:

Discount of 15 % = Price reduced by 0.15*y

Sales Tax of 5% = Price increased by 0.05*y

- The resulting prices from each percentage is:

Amount left after discount = y - 0.15*y = 0.85*y

Amount after tax = y + 0.05*y = 1.05*y

- The factors of each affect are:

Factor of discount = 0.85

Factor of Tax = 1.05

Hence, The factors are multiplied by the original cost to get the combined effect as follows:

Answer: Final cost = y*0.85*1.05

Q2) Write an expression for the perimeter of the triangle shown below: A triangle is shown with side lengths labeled 0.5*x + 9, 3x, and - 3.4*x - 25.

Solution:

The perimeter of the triangle is the sum of all 3 sides given:

Perimeter = (0.5*x + 9) + (3x) + ( -3.4*x - 25 )

Perimeter = (0.5*x + 3x - 3.4x) + ( 9 - 25 )

Answer: Perimeter = 0.1*x - 16

Q3) Which expression is equivalent to one over five*m − 20?

Solution:

- Re-write expression:

(1 / 5)*m - 20

Take LCM of the denominator:

(m - 100) / 5

Answer: One over five ( m - 100)

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Which expression represents the area of the base of the cone?

zaharov [31]

Answer:

A. (pi)(3 squared)

Step-by-step explanation:

edge

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Damien has won 164 basketball games and lost 4. what percentage of his games have he won?

alexgriva [62]

Answer:

2.44% (rounded to nearest hundredth) games LOST

97.56% Games WON

My gratitude attitude - THANKS!

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Arrange the circles (represented by their equations in general form) in ascending order of their radius lengths. X2 y2 − 2x 2y −

Colt1911 [192]

Circles (represented by their equations in general form) in ascending order of their radius lengths can be arranged as first-fifth-second-forth-third-seventh-sixth.

<h3>What is the equation of circle?</h3>

The equation of the circle is the equation which is used to represent the circle in the algebraic equation form with the value of center point in the coordinate plane and measure of radius.

The standard form of the equation of the circle can be given as,

$(x-h)^2+(y-k)^2=r^2$

Here (h,k) is the center of the circle and (r) is the radius of the circle.

Lets arrange the first equation, in standard form of equation of circle as,

$x^2 +y^2 - 2x+ 2y -1 = 0 \\(x^2 - 2x) +(y^2+ 2y )= 1\\(x^2 - 2x+1) +(y^2+ 2y +1)= 1+1+1\\(x-1)^2+(y+1)^2=(\sqrt{3})^2$

The radius of this circle is √(3).

Lets arrange the second equation, in standard form of equation of circle as,

$x^2 +y^2 - 4x+ 4y - 10 = 0 \\(x^2 - 4x) +(y^2+ 4y )= 10\\(x^2 - 4x+4) +(y^2+ 4y +4)= 10+4+4\\(x-2)^2+(y+2)^2=(\sqrt{18})^2$

The radius of this circle is √(18).

Lets arrange the third equation, in standard form of equation of circle as,

$x^2 +y^2 - 8x - 6y - 20 = 0 \\(x^2 - 8x) +(y^2-6y )= 20\\(x^2 - 8x+16) +(y^2- 6y +9)= 10+16+9\\(x-4)^2+(y-3)^2=(\sqrt{45})^2$

The radius of this circle is √(45).

Similarly, radius of the forth, fifth, sixth and seventh circle is √(23), √(5), √(117) and √(46) units.

Hence, the circles (represented by their equations in general form) in ascending order of their radius lengths can be arranged as first-fifth-second-forth-third-seventh-sixth.

Learn more about the equation of circle here;

brainly.com/question/1506955

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Tan (30)=14/x<br><br> need for big ideas assignment

Ann [662]

Step-by-step explanation:

tan30 = 14/x

x = 14tan30

x = -89.7

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