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Lelechka [254]
4 years ago
9

I have 2 more questions I still need help with sorry about me keep asking questions

Mathematics
1 answer:
algol134 years ago
4 0
I can't help I don't see a question
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Need help asap......
Korvikt [17]

Answer:

32

Step-by-step explanation:

(2x+20)+3x=180\\5x+20=180\\5x=180-20=160\\x=160/5=32

6 0
3 years ago
7. x, when n(x) = -2
grandymaker [24]

Answer:

please send full question

Step-by-step explanation:

6 0
3 years ago
Hannah was adding 5 plus -4. When explaining her work she said that the sum is 9 because you add the numbers and take the sign o
Scilla [17]

Answer:

The sum is 1

Step-by-step explanation:

When you add a negative number to a positive number, it is basically just subtracting the negative from the positive. To make it simple, 5 + -4 is just 5 - 4.

Hannah was wrong in saying you take the sign of the larger number because it would not matter if the first number was a million, the signs don't change based on the size of numbers.

6 0
4 years ago
What is the inverse of the function f(x) = 2x + 1?
soldier1979 [14.2K]

Answer: The inverse of the linear function f(x)=2x+1 is f^(-1) (x) = (1/2)x-1/2


Solution

f(x)=2x+1

y=f(x)

y=2x+1

Isolating x: Subtracting 1 both sides of the equation:

y-1=2x+1-1

y-1=2x

Multiplying both sides of the equation by 1/2:

(1/2)(y-1)=(1/2)2x

(1/2)y-1/2=x

x=(1/2)y-1/2

Changing "x" by "f^(-1) (x)" and "y" by "x":

f^(-1) (x) = (1/2)x-1/2

8 0
3 years ago
GEOMETRY PLEASE HELPPP!! WILL MARK BRAINLIEST
MaRussiya [10]
I think the answer is the 3rd rectangle but I'm not too sure I'm sorry
4 0
3 years ago
Read 2 more answers
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