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Nataly [62]
4 years ago
10

Hannah is saving money for a car. She earns $160 each week working part time after school and on the weekends at Papa's Pizza. H

annah currently has $1,280 in savings. Her parents put $50 in her savings account each week and she saves one-half of her paycheck each week. Which expression represents the situation? (n represents the number of weeks) A) 1,280 + 130n B) 1,280 + 160n + 50n C) 1,280 + 160n 2 D) 1,280 + 160n + 50n 2
Mathematics
2 answers:
Xelga [282]4 years ago
5 0

Answer:

it is A

Step-by-step explanation:

katrin [286]4 years ago
4 0

Answer:

answer is A

Step-by-step explanation:

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addison and kelsey are running on a path modeled by x^2+y^2-10x-18y-378=0, where the distance is in meters. what is the maximum
bulgar [2K]

The maximum distance is the <u>diameter of the circle</u>, which is of 44 units.

The equation of a circle of <u>radius r and center</u> (x_0,y_0) is given by:

(x - x_0)^2 + (y - y_0)^2 = r^2

  • The diameter is <u>twice the radius</u>, and is the <u>maximum distance</u> between two points inside a circle.

In this problem, the circular path is modeled by:

x^2 + y^2 - 10x - 18y - 378 = 0

We complete the squares to place it in the standard format, thus:

x^2 - 10x + y^2 - 18y = 378

(x - 5)^2 + (y - 9)^2 = 378 + 25 + 81

(x - 5)^2 + (y - 9)^2 = 484

Thus, the radius is:

r^2 = 484 \rightarrow r = \sqrt{484} = 22

Then, the diameter is:

d = 2r = 2(22) = 44

The maximum distance is the <u>diameter of the circle</u>, which is of 44 units.

A similar problem is given at brainly.com/question/24992361

7 0
2 years ago
PLZ QUICK!!
iragen [17]

Answer:

See attached graph

Step-by-step explanation:

The equation is y-3=(x + 6)

Write the equation in a slope intercept form, then graph the equation on a graph tool to see the points that line on the line.

Alternatively , using the coordinates in the answer choices given, input them in the equation of the graph and select the answer choice that has all its coordinates true to the equation.

y-3 = x+6  -----can be written as : y= x+9

Graph  y= x+9 to see the graph and the points that are on the line as attached.

3 0
3 years ago
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1) Write an equation of a line that<br> is parallel to y = -5x + 2 and<br> passes through (-1, 4).
amid [387]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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Express the number 20000 as a single digit integer times a power of 10
PolarNik [594]
The answer is 2 x 10^4 or 2 to the power of 4 (4th power) where;
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Expressing a number to a single digit integer times a power of 10 is also writing a number in scientific form,where the number is multiplied by 10 to nth "power". Scientific notation is also called standard index form whereby, too large or too big numbers.
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Pre algebra help ( will give brainliest ) sorry if it's hard to see
valentinak56 [21]
It would have changed by 1/3 is ur answer
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