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Firlakuza [10]
3 years ago
8

Which of the following statements about sets of numbers is true? (1 point)

Mathematics
2 answers:
gayaneshka [121]3 years ago
7 0

Answer:

-All integers are whole numbers.

-All rational numbers are natural numbers.

Step-by-step explanation:

Mamont248 [21]3 years ago
7 0

1:b

2:b

3:a

4:b

5:c

sums of real numbers quick check^

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Andrea made a replica of the Empire State Building. The surface area of the model is 45 ft2. What is the surface area of the act
melamori03 [73]

Answer:

<u>87,120 ft²</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Surface area of the Empire State building replica = 45 square feet

Scale factor = 44

2. What is the surface area of the actual Empire State Building in square feet?

For answering the question, we will make the following calculations:

45 square feet = 9 feet * 5 feet or,

45 square feet = 10 feet * 4.5 feet, or,

45 square feet = 20 feet * 2.25 feet.

Now, let's apply the scale factor to all of these probable lengths of the sides of the surface area of the replica, as follows:

(9 *44) * (5 * 44) = 396 * 220 = 87,120 ft²

(10 * 44) * (4.5 * 44) = 440 * 198 = 87,120 ft²

(20 * 44) * (2.25 * 44) =  880 * 99 = 87,120 ft²

<u>As we proved, no matter what are the lengths of the sides of the surface area of the replica. after applying the scale factor, the result is the same: 87,120 ft²</u>

6 0
3 years ago
Write the polynomial as a product: p^2q+r^2–pqr–pr<br> Thanks so much! Love you all who help!
Anarel [89]
Factor the equation so... 
(r^2-pr) and (p^2q-pqr)

Factor out (r^2-pr) = r(r-p)
Factor out (p^2q-pqr) = pq(p-r)

Add a negative to r(r-p) to make it -r(p-r)

(pq-r)(p-r) is the answer...  I'm sorry I can't explain things well, but I tried.
5 0
3 years ago
Please help me its 15 pts and brainlist
loris [4]

Answer:

this is 8 p

Step-by-step explanation:

8 0
2 years ago
Simplify (9k6 + 8k4 - 6k2)(4k2 - 5)​
Tasya [4]

Answer:

36k^8-13k^6-64k^4+30k^2

Step-by-step explanation:

36k^8-13k^6-64k^4+30k^2\\9k^6*(4k^2-5)+8k^4*(4k^2-5)-6k^2*(4x^2-5)\\36k^8-45k^6+8k^4*(4k^2-5)-6k^2*(4x^2-5)\\36k^8-45k^6+32k^6-40k^4-6k^2*(4x^2-5)\\36k^8-45k^6+32k^6-40k^4-24k^4+30k^2\\36k^8-13k^6-40k^4-24k^4+30k^2\\36k^8-13k^6-64k^4+30k^2

8 0
3 years ago
2. (20x4 – 4x3 + 12x2) = (4x2)
olasank [31]

Answer:

the answer to the question is 1/20

3 0
3 years ago
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