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k0ka [10]
2 years ago
8

Is this correct on how to graphing the inequalities???

Mathematics
2 answers:
Verizon [17]2 years ago
5 0
You have the right idea, the shading is incorrect however your lines are not. For your line y is less than or equal to x. you can check the answer by using a coordinate from the graph that is not on the line.

For example let's use the coordinate (0,1) to see if it creates a false or true statement. 
1 is less than 0.
This is a false statement.
Because these coordinates are on the left of the line, and the checked statement is false, you should have instead shaded on the right of the line.
so your answers are instead between the two lines.
ArbitrLikvidat [17]2 years ago
4 0
It is correct but for the broken or dashed line, you have you shade the upper region. The line with the thick line is right.
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A shelf is designed so it will fit in a 90º corner between two walls. The shelf has dimensions, rounded to the nearest tenth, as
den301095 [7]

Answer:

Yes, it will fit snugly in a 90º corner

Step-by-step explanation:

To do this, we simply need to check if the given sides of the shelf is right-angled.

So, we have:

Hypotenuse = \sqrt{242

Side\ 1 = Side\ 2 = 11

To check for right-angle triangle, we make use of:

Side\ 1^2 + Side\ 2^2 = Hypotenuse^2

This gives:

11^2 + 11^2 = \sqrt{242}^2

121 + 121 = \sqrt{242}^2

242 = \sqrt{242}^2

242 = 242

This shows that the given sides of the shelf is a right-angled triangle.

Hence, it will fit the wall

4 0
3 years ago
Solve the Quadratics:
klasskru [66]

Answer:

Step-by-step explanation:

1 ) k²-8k = 0

k(k-8)=0

k = 0 or k=8

2) a²+5a=0

a(a+5) = 0

a=0 or a  = - 5

3 ) 6n²+5n-25=0

delta = b²-4ac      b =5 and a = 6   and   c= - 25

delta = 5²-4(6)(-25) = 625 = 25²

n 1 = (-5+25)/12 = 20/12 = 5/3

n 2 = (-5-25)/12 = -  30/12  = -5/2

same method for 4) and 5)

6 0
2 years ago
What is the length of the hypotenuse? If necessary, round to the nearest tenth.
andre [41]

Answer:

7 feet

Step-by-step explanation:

Pythagorean theorem

sqrt(4.5^2 + 5.3^2) = hypotenuse

sqrt(48.34) = hypotenuse

6.95269732 = hypotenuse

round to nearest tenth

7 feet = the length of the hypotenuse

5 0
2 years ago
Evaluate the expression when a=6 and b=45
KIM [24]

Answer:

21

Step-by-step explanation:

Given

b - 4a ← substitute a = 6 and b = 45 into the expression

45 - 4(6) = 45 - 24 = 21

3 0
3 years ago
Read 2 more answers
Liam needs to find the solution that satisfies both equations 1. Y=1/3x+7 2. Y=-2x
enot [183]

Answer:

(-3,6)

Step-by-step explanation

5 0
2 years ago
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