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svlad2 [7]
3 years ago
14

HELPPPPPP

Mathematics
2 answers:
fenix001 [56]3 years ago
7 0

the answer is 40 units i hopes this helps

kherson [118]3 years ago
6 0
We are asked to solve the perimeter of the given triangle QSU. To solve this, we need to formulate two equations, please refer to the attached picture. 
For triangle SRC, we have it:
(2x)² + r² = h²
For triangle STC, we have it:
(x+3)² + r² = h²
Perform subtraction of two equations:
  (2x)² + r² = h²
- ((x+3)² + r² = h²)
---------------------------
   (2x)² - (x+3)² = 0
Simplify further the expression such as:
4x² - x² - 6x - 9 =0
3x² - 6x - 9 =0 
(3x² - 6x - 9 =0 ) / 3
Performing quadratic equation, then roots are:
x² - 2x - 3 = 0
(x-3) (x + 1) = 0
x1 = 3
x2 = -1 (not possible)
Using x=3, the total perimeter for two sides of the triangle is:
Partial perimeter = 2x + (x+3) + 10 + 4
Partial perimeter = 2*3+ (3+3) + 10 + 4
Partial perimeter = 26 units

Then the answer is 40 units for the total perimeter of the triangle QSU since it is impossible that the last and third side is 4 units, then select 40 units for the total perimeter.

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Ln a+3 + ln a-3 = ln 16
Lilit [14]
\bf log_{{  a}}(xy)\implies log_{{  a}}(x)+log_{{  a}}(y)\\\\
and\qquad \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-----------------------------\\\\
ln(a+3)+ln(a-3)=ln(16)\implies ln[(a+3)(a-3)]=ln(16)
\\\\\\
ln[a^2-3^2]=ln(16)\impliedby \textit{removing ln() from both sides}
\\\\\\
a^2-9=16\implies a^2=16+9\implies a^2=25
\\\\\\
a=\pm\sqrt{25}\implies a=\pm 5
7 0
3 years ago
Teague is participating in a 50K run to raise money for a charity. He has already raised $102 and will receive $1.40 for each ki
Volgvan
He has to run 45 kilometers
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Describe the location of the point that has the following coordinates. positive abscissa, positive ordinate
Marysya12 [62]
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4 0
3 years ago
Read 2 more answers
2.85 rounded to the nearest hundredth <br> A. 2.861<br> B. 2.849<br> C. 2.842<br> D. 2.805
blagie [28]

Answer:

B) 2.849

Step-by-step explanation:

Given: 2.85 which is rounded to the nearest hundredth place.

To find the number, the thousandth place must be greater than or equal to 5.

Here 2.849 has the thousandth place greater than 5

When we round off 2.849 to the nearest hundredth place, we get

2.85

Therefore, answer is B) 2.849

Hope this will helpful.

Thank you.

5 0
3 years ago
Read 2 more answers
One day in December the temperature in London was -3°C, in Stockholm it was -5°C, while in Moscow it was -8°C. Which statement c
shusha [124]
<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ If you think about the positioning on a number line, -3 would be the closest to 0 - making it the largest. The next largest would then be -5 and then finally -8.

As per the options, the correct one would be D

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

4 0
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