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Ierofanga [76]
3 years ago
15

What is an algebraic expression for ​"21 more than n​"?

Mathematics
1 answer:
stealth61 [152]3 years ago
3 0

Answer:

Step-by-step explanation:

n+21

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Which represents the inverse of the function f(x) = 4x?
Dmitry_Shevchenko [17]
F (x) = 4x    ⇒    y = 4x 
                               ↓
                           x = 4y     Divide by 4 on both sides
                               ↓
                          x / 4 = y   ⇒   Inverse function = x / 4
5 0
3 years ago
PLEASE HELP!
Mariana [72]
-----------------------------------------------
Information Given:
-----------------------------------------------
ON = 7x - 9
LM = 6x + 4
MN = x - 7
OL = 2y - 7

-----------------------------------------------
Since it is a parallelogram:
-----------------------------------------------
ON = LM and
MN = OL

-----------------------------------------------
ON = LM:
-----------------------------------------------
7x - 9 = 6x + 4

-----------------------------------------------
Subtract 6x from both sides:
-----------------------------------------------
x - 9 = 4

-----------------------------------------------
Add 9 to both sides:
-----------------------------------------------
x = 13

-----------------------------------------------
MN = OL:
-----------------------------------------------
x - 7 = 2y - 7

-----------------------------------------------
Sub x = 13:
-----------------------------------------------
13 - 7 = 2y - 7

-----------------------------------------------
Simplify:
-----------------------------------------------
6 = 2y - 7

-----------------------------------------------
Add 7 on both sides:
-----------------------------------------------
13 = 2y

-----------------------------------------------
Divide by 2:
-----------------------------------------------
y = 13/2

-----------------------------------------------
Answer: x = 13, y = 13/2 (Answer D)
-----------------------------------------------


6 0
3 years ago
True or False: (x + 3)2 = x2 + 9
malfutka [58]

Answer:

false

Step-by-step explanation:

3 0
3 years ago
Evaluate the expression for the given value of the variable -4b-8 + -1 b^2 + 2b^3 ; b= -2
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-4b-8 + -1b^2 +2b^3
-4(-2)-8+-1(-2)^2+2(-2)^3
8-8+2^2-4^3
4-64
60
4 0
3 years ago
Read 2 more answers
From the intersection for the following sets.
zaharov [31]
Since x is intersecting y, it will be XnY =(0, 10)
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