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Romashka [77]
2 years ago
10

Which expressions are equivalent?

Mathematics
2 answers:
Hunter-Best [27]2 years ago
8 0
3x - 7y and 7y + 3x bc they're interchangeable
lukranit [14]2 years ago
5 0

Answer:

3x -7y = -7y+3x

Step-by-step explanation:

3x is positive and   7y is negative

We can reverse the order

3x -7y = -7y+3x

You might be interested in
Q.2. Separate the digits of the number "893451" as per National and
LuckyWell [14K]

Answer:

imm a bit sorry I could only answer the international one as the national is equal to international place value system

Step-by-step explanation:

eight hundred ninety three thousand four hundred fifty one

hth tth th h t o

8 9 3 4 5 1

I hope you understand

8 0
3 years ago
WILL GIVE BRAINLIEST AND 100 POINTS
ICE Princess25 [194]

Answer:

a) The interval for those who want to go out earlier is between 43.008 and 46.592

b) The interval for those who want to go out later is between 47.9232 and 51.9168

Step-by-step explanation:

Given that:

Sample size (n) =128,

Margin of error (e) = ±4% =

a) The probability of those who wanted to get out earlier (p) = 35% = 0.35

The mean of the distribution (μ) = np = 128 * 0.35 = 44.8

The margin of error = ± 4% of 448 = 0.04 × 44.8 =  ± 1.792

The interval = μ ± e = 44.8 ± 1.792 = (43.008, 46.592)

b) The probability of those who wanted to start school get out later (p) = 39% = 0.39

The mean of the distribution (μ) = np = 128 * 0.39 = 49.92

The margin of error = ± 4% of 448 = 0.04 × 49.92 =  ± 1.9968

The interval = μ ± e = 44.8 ± 1.792 = (47.9232, 51.9168)

The way for those who want to go out earlier to win if the vote is counted is if those who do not have any opinion vote that they want to go earlier

4 0
3 years ago
An online store sells specialty bags. They charge $8 for shipping and $21 per bag ordered.
stellarik [79]

Answer:

cool

Step-by-step explanation:

8 0
3 years ago
PLEASE ANSWER ALL CORRECTLY IM STRESSING
omeli [17]

Answer:

#1. 5x - 24

#2. 10x - 1

#3. 10x -14

#4. 6x - 12

#5. 3x63 + 5x^2 - 3

#6. 12a + 43

#7. -7x + 5y + 28

#8. 3x + 3(not sure about the last exponent because It was really blury to see :/

Step-by-step explanation:

Sorry I cant do the last because I have to now :) I will try to answer it next time if It isn't already answered :)

4 0
3 years ago
Read 2 more answers
Angles A and B are complementary. If mA is 13°, what is the measure of B? A. 167° B. 347° C. 13° D. 77°
Marta_Voda [28]

Answer:

D

Step-by-step explanation:

complementary sums until 90 degrees

 90-13=77

7 0
3 years ago
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