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inn [45]
2 years ago
8

PLEASE HELP ASAP WILL GIVE BRAINLIEST !!

Mathematics
1 answer:
STatiana [176]2 years ago
7 0
The answer is:

B) The solution is (4, 200). This means that it will cost me $200 to go to either gym 4 times.

the equations given to you were:
(C = 100 + 25x) and (C = 50x)

well, if you plug in 200 for C and 4 for x you get these equations,
200 = 100 + 25(4), and 200 = 50(x)

I solved both step-by-step below.
1. C = 100 + 25x plug in points
200 = 100 + 25(4) solve the parenthesis's
200 = 100 + 100 combine like terms
200 = 200 both sides are equal

2. C = 50x plug in points
200 = 50(4) solve the parenthesis's
200 = 200 both sides are equal
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Consider U = {x|x is a real number}. A = {x|x ∈ U and x + 2 > 10} B = {x|x ∈ U and 2x > 10} Which statements are true? 5 ∉
-Dominant- [34]

x+2 > 10 solves to x > 8 after we subtract 2 from both sides

So set A is the set of real numbers that are larger than 8. The value 8 itself is not in set A. The same can be said about 5 as well.


Set B is the set of values that are larger than 5 since 2x > 10 turns into x > 5 after dividing both sides by 2. The value x = 5 is not in set B since x > 5 would turn into 5 > 5 which is false. The values x = 6, x = 8, and x = 9 are in set B.


----------------


Summarizing everything, we can say...

5 is not in set A. True

5 is in set B. False

6 is in set A. False

6 is not in set B. False

8 is not in set A. True

8 is in set B. True

9 is in set A. True

9 is not in set B. False


5 0
2 years ago
Read 2 more answers
Find each sum.Simplify if possible
Alex Ar [27]
Number 2 is 7 9/8 but its an improper fraction so you'll have to reduce that since im having trouble doing that.

Number 5 is 9 11/12

Hope this helps!
8 0
3 years ago
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I am not sure how sigma notation works, can somebody explain how to solve this? It isn't the second choice.
Masja [62]

Answer:

first answer is correct

Step-by-step explanation:

Hello, we want to write 2 + 4 + 6 + ... + 20

for n = 1, 2n = 2*1 =2

for n = 2, 2n = 2*2=4

for n = 3, 2n=2*3=6

etc

so

\displaystyle \sum_{n=1}^{10} {2n} = 2*1 + 2*2 +2*3+2*4+...+2*10=2+4+6+8+...+20

thanks

6 0
2 years ago
Choose the correct simplification of the expression −3x2(5x − 4x2 − 6).
Bess [88]
Answer B.
- 3 {x}^{2} (5x - 4 {x}^{2} - 6) \\  =  - 15 {x}^{3}  + 12 {x}^{4}  + 18 {x}^{2}  \\  = 12 {x}^{4}  - 15 {x}^{3}  + 18 {x}^{2}
8 0
3 years ago
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HHHEEEEEELP PLEASE!!!! NEED ASAP!!!! HUUUURRRRYYYY
Monica [59]

Answer:

idk im dumb just like you dude


Step-by-step explanation:


4 0
2 years ago
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