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zheka24 [161]
4 years ago
11

if set A contains 4 distinct numbers and set B contains 7 distinct numbers, how many elements are in ( A u B)

Mathematics
1 answer:
Juli2301 [7.4K]4 years ago
7 0
A \cup B will contain a minimum of 7 and a maximum of 11 elements. The number depends on how many are in both sets.
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The area of a rectangle is represented by the function x3 − 2x2 − 40x − 64. The width of the rectangle is x + 4. Find the expres
const2013 [10]

Answer: Length = x² - 6x - 16

Step-by-step explanation:

The formula for determining the area of a rectangle is expressed as. Area = length × width

Length = Area/width

The area of a rectangle is represented by the function

x³ - 2x² - 40x - 64. The width of the rectangle is x + 4. Therefore,

Length = (x³ - 2x² - 40x - 64)/(x + 4)

We would apply the method of long division. The steps are shown in the attached photo. From the photo,

Length = x² - 6x - 16

3 0
3 years ago
HELP DUE IN 20 MINS!<br><br><br>m∠c =?? degrees<br><br><br>° m∠d =?? degrees
dimaraw [331]

Answer:

<c = 45°

<d = 90°

I am not sure okay....this ia sq right?

6 0
3 years ago
Read 2 more answers
Meghan walked 1/3 mile in 3 minutes, 5 seconds. If she walk at the same rate, what portion of a mile will she walk in one second
ELEN [110]
1/555 of a mile. I did this by figuring out how many seconds it would take her to walk a full mile and then got the answer for 1 second
6 0
4 years ago
Y= -3x + 1 and y= x - 3
e-lub [12.9K]

Answer:

x= 1

y= -2

Step-by-step explanation:

equation (1): y= -3x+1

equation (2): y=x-3

solve the system of equations by substitution:

step1: sub ( x-3 ) for y in equation 1:

y = -3x+1

x-3 = -3x+1

step2: simplify the equation to get x:

(add 3 for both sides)

x = -3x+4

(add 3x for both sides)

4x = 4

(divide 4 from both sides)

x = 1

step3: sub the value of x (x=1) in equation 2:

y = x-3

y = 1-3

step4: solve the equation to get y:

y = -2

3 0
3 years ago
How do I do this also?
dusya [7]
Pretty sure I can't give you test answers

4 0
3 years ago
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