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Nadya [2.5K]
3 years ago
10

What two integers have a sum of negative ten and a product of negative seventy five?

Mathematics
1 answer:
Natali [406]3 years ago
7 0
A+b=-10
ab=-75

a=-75/b
-75/b + b = -10

-75/b + b²/b = -10b/b
b²+10b-75=0

(b+15)(b-5)=0
b+15=0 or b-5=0,
b= -15, a=5
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Not to good with math but the answer may be B
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3 years ago
Jim offers 15% off on a gallon of ice cream that costs $4.36. Which of the following will make Jeff's offer a better deal?
Mashcka [7]

The price after the discount is $3.706

<h3>Discount price</h3>

Give the following parameters

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  • Percent-off coupon = 15%

Discount = 0.15 * 4.36

Discount = $0.654

Price after the discount = $4.36 - 0.654

Price after the discount = $3.706

Hence the price after the discount is $3.706

Learn more on discount here: brainly.com/question/24304697

4 0
2 years ago
Find the distance between (3, 8) and (7, -11). Round to the nearest hundredth.
Mama L [17]
Distance formula : d = sqrt (x2 - x1)^2 + (y2 - y1)^2
(3,8)(-7,11)
d = sqrt (-7 - 3)^2 + (11 - 8)^2
d = sqrt (-10^2) + (3^2)
d = sqrt (100 + 9)
d = sqrt 109
d = 10.44
===============
mid-point formula : ((x1 + x2) / 2 , (y1 + y2) / 2)
(-9,5)(21,-7)

midpoint = ((-9 + 21)/2 , (5 + (-7)/2)
               = ((12/2) , (-2,2))
               = (6, -1) <==
=======================
(-8,7)(-9,11)
midpoint = ((-8 + (-9) / 2, (7 + 11)/2 )
               = (-17/2, 18/2)
               = (-8.5, 9) <==
======================
(8,y)(-11,6).....midpoint = (-1.5/5)
midpoint = ((8 + (-11)/2, (y + 6)/2)
               = (-3/2), (4 + 6)/2
               = (-1.5,5)
               y = 4 <==
======================
slope = (y2 - y1) / (x2 - x1)
(3,-6)(6,12)
slope = (12 - (-6) / (6 - 3) = (12 + 6) / 3 = 18/3 = 6 <==
======================
(x,10)(-4,8)...slope = 2/3

y = mx + b
slope(m) = 2/3
(-4,8)...x = -4 and y = 8
sub and find b
8 = 2/3(-4) + b
8 = -8/3 + b
8 + 8/3 = b
24/3 + 8/3 = b
32/3 = b
equation is : y = 2/3x + 32/3 or 3y = 2x + 32
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30 - 32 = 2x
-2 = 2x
-2/2 = x
-1 = x <===
=================
(9,0)(3,y)...slope = 1/2

y = mx + b
slope(m) = 1/2
(9,0)...x = 9 and y = 0
sub and find b
0 = 1/2(9) + b
0 = 9/2 + b
-9/2 = b
equation is : y = 1/2x - 9/2 or 2y = x - 9
sub in 3 for x and solve for y
2y = 3 - 9
2y = -6
y = -6/2
y = -3 <==
=================
(8,7)(11,7)...notice how the y values are the same. This means it is a horizontal line. A horizontal line has a slope of 0.
====================
sorry...not too good with the picture graphs







4 0
3 years ago
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Tju [1.3M]
6/5 * 25/24 = (6 * 25) / (5 * 24) = 150/120 = 15/12 = 5/4
8 0
3 years ago
Read 2 more answers
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pashok25 [27]

Answer:

Step-by-step explanation:

You will have to find what times what = 80 so 8 x 10 = 80 so the answer is 8

4 0
2 years ago
Read 2 more answers
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