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Liula [17]
2 years ago
10

Nghia bought a $650 personal

Mathematics
2 answers:
tester [92]2 years ago
7 0

Answer:

$65

Step-by-step explanation:

10% of 650 is 65 because you multiply .1 and 650, or move the decimal one place to the left. because the question asks for the discount price, you would just find the discount.

tekilochka [14]2 years ago
3 0

Answer:

65

Step-by-step explanation:

650x0.1=65

the answer is 65 dollars uwu

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Jacob is going on a vacation to Australia. His flight leaves at 1:15 P.M. It takes 1 hour to get to the airport, and Jacob wants
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Answer:

The latest time is 12:00

Step-by-step explanation:

take an hour away for 1:15 which is gonna be 12:15 then take the 15 minutes away and you get 12:00

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3 years ago
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By visual inspection, determine the best-fitting regression<br> model for the data plot below.
Firlakuza [10]

Answer:

A. linear

Step-by-step explanation:

A linear model is the best-fitting regression  model for the data plot because for similar variations in x values, the variation in y values are also similar, that is, if you take points (x1, y1), (x2, y2) and (x3, y3) the y1 - y2 is similar to y2 - y3, when x2 - x1 is also similar to x3 - x2.

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3 years ago
Need some help please
Oduvanchick [21]

Answer:

1.x^1=1.73205,x^2=1.73205  2. x^1=-2.5,x^2=-3/2 3.x=74

Step-by-step explanation:

8 0
3 years ago
Convert –18° to radians.<br> Answer: D on edg (- pie/10 radians)
Natalija [7]

Answer:

-\frac{\pi }{10} radians

Step-by-step explanation:

4 0
2 years ago
Any point on the parabola can be labeled (x,y) as shown.
Sonja [21]

Answer:

Part A)

2nd and 5th choice.

Part B)

\displaystyle y=-\frac{1}{4}x^2-\frac{3}{2}x+\frac{3}{4}

Step-by-step explanation:

For the given parabola, our focus is (-3, 2), and our directrix is given by y = 4.

Part A)

We are given a point (x, y) on the parabola.

Since our directrix is an equation of <em>y</em>, the distance from (x, y) to the directrix will simply be the absolute value of the difference in y-values. So:

d_1=|y-4|=|4-y|

Recall the distance formula:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2

Our distance from (x, y) to the focus (-3, 2) can be determined using the distance formula. Let (x, y) be (x₂, y₂) and let our focus (-3, 2) be (x₁, y₁). Therefore:

d_2=\sqrt{(x-(-3))^2+(y-2)^2}=\sqrt{(x+3)^2+(y-2)^2

Hence, for Part A, our answers are the 2nd and 5th choices.

Part B)

Recall that by the definition of a parabola, any point (x, y) on it is equidistant to the directrix and focus. Hence:

\sqrt{(x+3)^2+(y-2)^2}=|y-4|

Solve for <em>y</em>. Square both sides. We may remove the absolute value since anything squared is positive:

(x+3)^2+(y-2)^2=(y-4)^2

Square:

x^2+6x+9+y^2-4y+4=y^2-8y+16

Rearrange:

(x^2+6x+13)+(-16)=(y^2-y^2)+(-8y+4y)

Combine like terms:

x^2+6x-3=-4y

Divide both sides by -4. Hence, our equation is:

\displaystyle y=-\frac{1}{4}x^2-\frac{3}{2}x+\frac{3}{4}

5 0
3 years ago
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