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alukav5142 [94]
3 years ago
5

Please help asap 25 points

Mathematics
1 answer:
Dafna11 [192]3 years ago
7 0

Answer: (c) y<=-x+4

The area is shaded UNDER the boundary line, hence "<"

The boundary is plotted as solid line, hence "="

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Help plz:))) I’ll mark u brainliest
Papessa [141]

Answer:

25x = 75 (Because they are alternate interior angles)

=> x = 75/25

=> x = 3

So, x = 3

Because 25x is equal to 75, the two lines (u and v) are parallel

4 0
3 years ago
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A certain fraction has a value of 15. the denominator is four more than three times the numerator. what is the fraction?
ra1l [238]
N/d = 15
d= 4 + 3n

d=n/15
n/15=4+3n
n=60+45n
44n=-60
n=-15/11
-15/11 / d = 15
-15/11 = 15d
d=-1/11

15/11 / 1/11. = 15
3 0
3 years ago
What is the surface area of a cube with a edge of 5
sergejj [24]

Answer:

Step-by-step explanation:

A cube is made up of 6 squares

One square has 4 edges of equal length

The area of one face is Area = s^2

Therefore the surface area is 6 * s^2

The area of this cube is 6 * 5 * 5 = 150 units.

7 0
3 years ago
PLZ PLZ PLZ HELP ME!!! AND QUICKLY TOO!!! (15 POINTS)
Orlov [11]

The answer would be:


A translation 5 units down, followed by a 180-degree counterclockwise rotation about the origin


See attached picture:

8 0
3 years ago
Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real
hoa [83]

Answer: 0=2x^2-7x-9\\0=4x^2-3x-1\\0=x^2-2x-8


Step-by-step explanation:

We know that the standard quadratic equation is  ax^2+bx+c=0

Let's compare all the given equation to it and , find discriminant.

1. a=2, b= -7, c=-9

b^2-4ac=(-7)^2-4(2)(-9)=49+72>0

So it has 2 real number solutions.

2. a=1, b=-4, c=4

b^2-4ac=(-4)^2-4(1)(4)=16-16=0

So it has only 1 real number solution.

3. a=4, b=-3, c=-1

b^2-4ac=(-3)^2-4(4)(-1)=9+16=25>0

So it has 2 real number solutions.

4. a=1, b=-2, c=-8

b^2-4ac=(-2)^2-4(1)(-8)=4+32=36>0

So it has 2 real number solutions.

5. a=3, b=5, c=3

b^2-4ac=(5)^2-4(3)(3)=25-36=-9

Thus it does not has real solutions.



5 0
3 years ago
Read 2 more answers
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