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sweet-ann [11.9K]
3 years ago
7

I don't understand. Please help answer questions!!!!!!

Mathematics
1 answer:
insens350 [35]3 years ago
7 0
16) yes, they are reflections on a summit.
17) no parallelogram shown to answer question <span />
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A pentagon has angle measures of 105°, 101°, 112° and 113°. What must the fifth angle measure?
Taya2010 [7]
Add them. Pentagram interior angle is 540. 105+101+112+113=431. 540-431=109 Hence, 109 is the answer. Please brainliest.
8 0
3 years ago
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Solve for x. 3(3x - 1) + 2(3 - x) = 0
olga nikolaevna [1]
The equation given in the question is
3(3x - 1) + 2(3 - x) = 0
9x - 3 + 6 - 3x = 0
6x + 3 = 0
6x = - 3
x = - (3/6)
   = - (1/2)
So the value of x as has been determined above is -1/2. I hope the procedure is clear enough for you to understand.<span>You can always use this method for solving problems that are similar in type without requiring any help from outside. </span>



8 0
3 years ago
Question 4
alina1380 [7]
For question 4 the answer is yes and for question 5 the answer is false
6 0
3 years ago
Factor 20x2 + 25x – 12x – 15 by grouping. 1. Group terms with common factors. 2. Factor the GCF from each group. 3. Write the po
RUDIKE [14]
<span>Step 1:
</span>
<span> (((22•5x2) + 25x) - 12x) - 15)))

</span>
<span>The first term is, <span> <span>20x2</span> </span> its coefficient is <span> 20 </span>.
The middle term is, <span> +13x </span> its coefficient is <span> 13 </span>.
The last term, "the constant", is <span> -15



</span></span>
<span>step 2 above,  -12  and  25 
                     <span>20x2 - 12x</span> + 25x - 15

Step-4 : Add up the first 2 terms, pulling out like factors :
                    4x • (5x-3)
              Add up the last 2 terms, pulling out common factors :
                    5 • (5x-3)
Step-5 : Add up the four terms of step 4 :
                    (4x+5)  •  (5x-3)
             Which is the desired factorization</span>Final result :<span> (5x - 3) • (4x + 5) </span>
5 0
3 years ago
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Will give brainleist PLEASE HELP ASAP<br> Sorry if it’s a bit blurry
dangina [55]

Answer:

too blurry, I cant see the numbers

7 0
3 years ago
Read 2 more answers
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