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aleksklad [387]
3 years ago
11

Which pair is a vertical angle

Mathematics
1 answer:
AVprozaik [17]3 years ago
7 0

Answer:

Step-by-step explanation:

When two lines cross into any kind of x shape , four angles are made.  if you look at one angle, there are two on either side.  These are NOT vertical angles.  The third angles though is vertical from the starting angle.  

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The half-life of cobalt-60 (used in
Likurg_2 [28]

Answer:

6.25 gm left

Step-by-step explanation:

Find the number of half lives in 26.3 years

   26.3 / 5.26 = 5 half lives

(1/2)  ^5   = 1/32 nd  of the original will be left

   1/32 * 200g = 6.25 gm left

5 0
2 years ago
If f(x-3)=x^2-4x+5, what's f(1-x)​
olganol [36]

Answer:

\large\boxed{f(1-x)=x^2-4x+5}

Step-by-step explanation:

f(x-3)=x^2-4x+5\\\\f((x-3)+3)\to\text{put x + 3 to the equation of the function:}\\\\f(x-3+3)=(x+3)^2-4(x+3)+5\\\text{use the distributive property and}\ (a+b)^2=a^2+2ab+b^2\\f(x)=x^2+2(x)(3)+3^2+(-4)(x)+(-4)(3)+5\\f(x)=x^2+6x+9-4x-12+5\qquad\text{combine like terms}\\f(x)=x^2+(6x-4x)+(9-12+5)\\f(x)=x^2+2x+2\\\\f(1-x)\to\text{put 1 - x to the equation of the funtion f(x):}\\\\f(1-x)=(1-x)^2+2(1-x)+2\\\text{use the distributive property and}\ (a-b)^2=a^2-2ab+b^2

f(1-x)=1^2-2(1)(x)+x^2+(2)(1)+(2)(-x)+2\\f(1-x)=1-2x+x^2+2-2x+2\qquad\text{combine like terms}\\f(1-x)=x^2+(-2x-2x)+(1+2+2)\\f(1-x)=x^2-4x+5

4 0
4 years ago
Lucas bought some plumbing equipment for $37.48 .The price the paid included a sales tax of 5% what was the price of the plumbin
julsineya [31]
Given:
Price paid including tax: $37.48
sales tax = 5%

This means that $37.48 is equivalent to 105%

To get the value of the 100% or its original price, we divide the price paid by its percentage rate

$37.48 ÷ 1.05 = $35.70 value of the original price

$35.70 * 5% =  $1.78  value of sales tax
$35.70 + 1.78 = $37.48
5 0
3 years ago
Read 2 more answers
X + 3x + x<br> Simplify
lana [24]
Answer:
5x

Answer Explained:
All the x’s add up together to make 5x
3 0
3 years ago
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What is the positive solution of x2 – 36 = 5x?
stiv31 [10]
Your answer is -12 x=-12
7 0
3 years ago
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