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Sonja [21]
3 years ago
8

Paige went to a hair stylist to get a haircut. Her bill came to $52.00, and she left an 18% tip. How much did she spend in all?

Plz show work and explain.
A. $42.64
B. $52.18
C. $59.63
D.$61.36
Mathematics
1 answer:
Dimas [21]3 years ago
5 0
The answer is d

This is the answer because you multiply 52 by 18% and then add the answer to 52 and will getD
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(a+b)²-4ab=<br>please help me for my exam​
Colt1911 [192]

Answer:

\huge \boxed{ \boxed{(a  -  {b)}^{2} } }

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • algebra
<h3>tips and formulas:</h3>
  • algebraic identity:(a-b)²=(a+b)²-4ab
<h3>let's solve:</h3>

therefore

using the identity our answer is (a-b)²

let's prove it

  1. (a-b)²:a²-2ab+b²
  2. rewrite -2ab as 2ab-4ab:a²+b²+2ab-4ab
  3. use (a+b)²=a²+2ab+c²:(a+b)²-4ab

therefore

we have also proven that

8 0
3 years ago
It says I have 13 free answers left and then it says I used them all so I only get 2 free. why?
creativ13 [48]

Answer: That used to happen to me but if you answer peoples questions it doesnt do that anymore because you are helping out

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which is the inverse of the function f(x) = 1/4x-12
Ivanshal [37]
To find the inverse of the function, <span> f(x) = 1/4x-12, first interchange the variables of x and y
x=1/4y-12, now solve for y
1/4y=x+12, multiply by 4 on both sides
y=4x+48
Thus, the inverse of the function</span><span> f(x) = 1/4x-12 is 4x+48
Hope this helps!</span>
8 0
3 years ago
The vertices of polygon ABCD are at A(1, 1), B(2, 3), C(3, 2), and D(2, 1). ABCD is reflected across the x-axis and translated 2
Lana71 [14]

-- Reflecting across the x-axis makes all the x-coordinates the negative of
what they were before the reflection.  The y-coordinates don't change.

-- Translating 2 units up makes all the y-coordinates 2 greater than
they were before the translation.  The x-coordinates don't change.

You didn't give us a list of new coordinates, so there's nothing
to match with.
8 0
3 years ago
The radius of a right circular cone is increasing at a rate of 1.4 in/s while its height is decreasing at a rate of 2.8 in/s. At
zepelin [54]

Answer:

34191.7πin³/sec

Step-by-step explanation:

Volume of circular come = 1/3pi x r² x h

When we differentiate this formula we have

dv/dt = 1/3π[r²dh/dt + 2rhdr/dt]

We have the following information

r = 138

H = 143 inch

dr/dt = 1.4

dh/dt = -2.8

When we plug into the formula

1/3π[130² x -2.8 + 2x138x143x1.4]

= 34191.7πin³/sec

7 0
3 years ago
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