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Ierofanga [76]
3 years ago
14

Using the discriminant, fdetermine the number of real solutions. 2x^2+7x-15=0

Mathematics
1 answer:
ratelena [41]3 years ago
4 0
Here's your solution.

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What is the sum of X2-3x+7 and 3x2+5X-9
Pie
x^2-3x+7+3x^2+5x-9=\ \ \ \  | combine\ like\ terms\\\\
4x^2+2x-2\\\\
Solution\ is\ 4x^2+2x-2.
6 0
3 years ago
A rental car company charges $22.15 per day to rent a car and $0.07 for every mile driven. Aubrey wants to rent a car, knowing t
Luda [366]

The number of days that Aubrey can drive to stay in her budget is 5 days.

<h3>Inequality signs and their meanings</h3>

> means greater than

< means less than

≥ means greater than or equal to  

≤ less than or equal to  

<h3>Equation that represents the question</h3>

Total amount that can be spent ≤ (cost to rent a car per day x number of days) + (cost per mile x total miles driven)

$130 ≤ ($22.15 x dd) + ($0.07 x 275)

<h3>Determination of the number of days that Aubrey can drive</h3>

130 ≤ ($22.15dd) + ($0.07 x 275)

130  ≤  $22.15dd + 19.25

130 - 19.25  ≤ $22.15dd

110.75  ≤ 22.15d

d  ≤ 110.75 / 22.15

d  ≤ 5

To learn more about inequality, please check: brainly.com/question/5031619

8 0
3 years ago
How much will two points cost on a $175,000 mortgage?
Triss [41]
                                                                             43  $3500.00


because you must calculate $175,000.00*.02 so when that is multiplied it equalos $3500.00
8 0
3 years ago
I need help on task 7 please
NARA [144]
I cant see the task... You need to put it on here
8 0
3 years ago
How much time is needed for $1,800 to accumulate $360 in simple interest at a rate of 10%?
Fiesta28 [93]
I = PRT....rearrange
I / PR = T

I = 360
P = 1800
R = 10% = 0.1

I/PR = T
360 / (1800*0.1) = T
360 / 180 = T
2 = T...so it would take 2 years

7 0
4 years ago
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