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Svetlanka [38]
3 years ago
15

What is the domain of the following relation? {(a, b), (b, c), (c, a), (a, c), (c, d)}

Mathematics
2 answers:
ElenaW [278]3 years ago
8 0
X:{a, b, c}, because the numbers(or letters in this problem) cannot repeat.
Oksanka [162]3 years ago
4 0

Answer:

x:{a, b, c}, because the numbers(or letters in this problem) cannot repeat.

Step-by-step explanation:

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Can someone please help me solve a, b, c, and d <br> I’m so lost
xxTIMURxx [149]

Answer:

jjjjjjjjgy78uiogtvyigty68ig

Step-by-step explanation:

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5 0
3 years ago
A certain computer costs $599.00 at Best Buy. On Black Friday, it is on sale for 35% off. What is the price of the computer on b
iris [78.8K]

(599 x 35)/100 = $209.65

599 - 209.65 = $389.35

$389.35 is your answer.

7 0
3 years ago
What is the image of (−8,−8) after a dilation by a scale factor of 1/2 centered at the origin?
Romashka-Z-Leto [24]

Answer:

(-4,-4)

Step-by-step explanation:

Since this is centered at (0,0), we have to multiply the x and the y coordinates by the scale factor.

-8 × 1/2 = -4

7 0
3 years ago
If (a+b)^2=54, and (a-b)^=46, then a^2+b^2=?
erastovalidia [21]

(a+b)^2 =a^2 +b^2 + 2ab = 54~~~.....(i)\\\\(a-b)^2 = a^2 +b^2 -2ab = 46~~~.....(i)\\\\\\(i)+(ii):\\\\(a+b)^2 +(a-b)^2  = 54+46\\\\\implies a^2 +b^2 + 2ab + a^2 +b^2 - 2ab =100\\\\\implies 2a^2 +2b^2 =100\\\\ \\\implies 2(a^2 +b^2) =100\\\\\implies a^2 +b^2 = \dfrac{100}2 = 50

4 0
3 years ago
The width of a triangle is six more than twice the height. The area of the triangle is 88in2. Find the height and base of the tr
malfutka [58]

For this case we have that by definition, the area of a triangle is given by:

A = \frac {b * h} {2}

Where:

b: It is the base of the triangle

h: It is the height of the triangle

According to the statement data we have:

b = 6 + 2h

Substituting we have:

88 = \frac {(6 + 2h) * h} {2}\\176 = 6h + 2h ^ 2\\2h ^ 2 + 6h-176 = 0

We divide between 2 on both sides:

h ^ 2 + 3h-88 = 0

We factor by looking for two numbers that, when multiplied, are obtained -88 and when added together, +3 is obtained.

These numbers are +11 and -8.

(h + 11) (h-8) = 0

We have two roots:

h = -11\\h = 8

We choose the positive value.

Thus, the base of the triangle is:b = 6 + 2 (8) = 22

Answer:

The base of the triangle is 22 units.

5 0
3 years ago
Read 2 more answers
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