3 years ago

Topic 9 Review

Mathematics

1 answer:

Lesechka [4]3 years ago

3 0

Merry Christmas and a happy new year

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A = {a, b, c, d}

Helen [10]

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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2 years ago

Dan has finished 2/3 of the 30 problems on an assignment

sleet_krkn [62]

Answer:

Step-by-step explanation:

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3 years ago

Mason, a hardwood flooring installer, needs to calculate the amount of hardwood flooring needed to cover a floor that's 33⁄4 yar

Aleksandr-060686 [28]

Answer:

20 5/8 yd^2

Step-by-step explanation:

width = 3 3/4 yd

length = 5 1/2 yd

First change both measurements to fractions.

3 3/4 = 3 + 3/4 = 12/4 + 3/4 = 15/4

5 1/2 = 5 + 1/2 = 10/2 + 1/2 = 11/2

area = length * width

area = 15/4 yd * 11/2 yd

area = (15 * 11)/(4 * 2) yd^2

area = 165/8 yd^2

165/8 = 20 remainder 5

area = 20 5/8 yd^2

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3 years ago

The table of values represents a linear function g(x), where x is the number of days that have passed and g(x) is the balance in

mina [271]

Part A: slope is 40

And i don’t know the rest I’m sorry

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2 years ago

The cost to rent a paddle boat at the county park is $8 per hour plus a nonrefundable deposit of $10. The cost can be modeled by

Agata [3.3K]

Answer:

ok fine

Step-by-step explanation:

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2 years ago