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marta [7]
3 years ago
7

A = {a, b, c, d}

Mathematics
1 answer:
Helen [10]3 years ago
4 0

Answer:

Johnny is wrong.

A \cup B = \left\{a,b,c,d,e,f,g,h\right\}

Step-by-step explanation:

Johnny is wrong.

A better definition would be: A \cup B is the set of all elements that belong to at least one A or B.

So, the elements that belong to both A and B, like c and d in this exercise, also belong to A \cup B.

So:

A \cup B=\left\{a,b,c,d,e,f,g,h\right\}

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Write 2x+3y=9 to slope-intercept form
kkurt [141]

Answer: y=(-2/3)x + 3

Step-by-step explanation:

y=mx+b

m=slope

b=intercept of y axis

move the the y on one side by itself

3y= -2x + 9

divide by three to isolate y

y=(-2/3)x + 3

(!!!divide all the terms by 3!!!)

9/3= 3

7 0
3 years ago
you buy 7 packages total of AA and AAA. AA has 6 batteries in each pack and AAA has 8 batteries in each pack. you end up with 52
Nina [5.8K]

Answer:

you bought 8 packs in total or four of each

Step-by-step explanation:

if you ad 6 and eight you get 14 and when you divide 52 by 14 you get four. to ensure your answer if you multiply 6 by 4 and 8 by 4 and add them together you will get 52

3 0
3 years ago
How do you represent a table with linear functions
patriot [66]

A table can be represented with a linear function equation as y = mx + b, where m is the slope and b is the y-intercept.

<h3>How to Represent a Table with Linear Function?</h3>

Assuming we have a table of values as shown in the image attached below, to write an equation of linear function for the table, do the following:

Pick two pairs of values, say, (1, 5) and (2, 25) and find the slope (m):

Slope (m) = change in y / change in x = (25 - 5)/(2 - 1)

Slope (m) = 20

Find the y-intercept (b) by substituting (x, y) = (1, 5) and m = 20 into y = mx + b:

5 = 20(1) + b

5 = 20 + b

5 - 20 = b

-15 = b

b = -15

Write the equation of the linear function by substituting m = 20 and b = -15 into y = mx + b:

y = 20x - 15

Learn more about the linear function on:

brainly.com/question/15602982

#SPJ1

8 0
2 years ago
the area of a square floor on a scale drawing is 100 square centimeters, and the scale of the drawing is 1 cm: 2 ft. what is the
kondaur [170]
The square root of 100 is 10. The drawing must be 10 cm by 10 cm.

1 cm = 2 ft, so 10 cm must equal 20 feet.

20 * 20 = 400 square feet :)
3 0
3 years ago
How do I solve -4 times the square root of 1/10
schepotkina [342]

Answer: I think it is -0.4

Step-by-step explanation:

7 0
3 years ago
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