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Serga [27]
3 years ago
14

Find the area to the left of -1.3

Mathematics
1 answer:
seraphim [82]3 years ago
3 0

If you could add a picture or tell me what the picture shows that would be great!

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Two lines or equations are described in each part. Decide whether each system has one solution, no solution, or infinitely many
olga55 [171]
To get the solution of a set of equations means to get a point that satisfies both equations.

Part (1):
The first line has a rate of change of 7, this means that slope of first line is 7
The second line has a rate of change of -7, this means that slope of second line is -7
Since the slope of the first line = - slope of the second line, then these two lines are definitely perpendicular to each other.
Two perpendicular lines will meet only in one point. This means that one point only will satisfy both equations (check the image showing perpendicular lines attached below)
Therefore, only one solution exists in this case

Part (2): 
The first given equation is:
2x + 3y = 5.5
The second given equation is:
4x + 6y = 11
If we simplified the second equation we will get: 2x + 3y = 5.5 which is exactly similar to the first equation.
This means that the two given equations represent the same line. 
Therefore, we have infinite number of solutions

Part (3):
We are given that the two lines are parallel. This means that the two lines are moving the same path side by side. Two parallel lines can never intersect. This means that no point can satisfy both equations (check the image showing parallel lines attached below).
Therefore, we have no solutions for this case.

7 0
3 years ago
Read 2 more answers
What is the surface area of the regular pyramid given below ?
Levart [38]

Answer:

Option C 207\ units^{2}

Step-by-step explanation:

we know that

the surface area of a pyramid is equal to

SA=B+LA

where

B is the area of the base

LA is the lateral area

The area of the base B is

B=9*9=81\ units^{2}

The lateral area is equal to

LA=4*(1/2)(9*7)=126\ units^{2}

the surface area is equal to

SA=81+126=207\ units^{2}

5 0
3 years ago
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To which subsets of the real numbers does the number 82 belong?
larisa86 [58]
We know that
<span>82 is an integer, a whole number, a natural number, and a rational number (since 82 = 82/1)

</span><span>So
82 belongs to the set of integers, set of whole numbers, set of natural numbers, and the set of rational numbers</span>
3 0
3 years ago
Please answer this correctly without making mistakes
IrinaVladis [17]

Answer:

44 5/6 "the second one"

5 0
3 years ago
Ellie bought a pair of jeans on sale for 15% off. If the jeans were originally $35, how much did she save?
Maurinko [17]

Answer:

she saved $5.25

Step-by-step explanation:

8 0
2 years ago
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