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ANTONII [103]
2 years ago
9

In the diagram EF is the bisector of <DEF = m < D' EF.

Mathematics
1 answer:
finlep [7]2 years ago
4 0

hii! i just wanted to say hope you're having a fantastic day and hope that things are going well (: stay strong and stay safe!

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Solve Systems by Substitution<br> 2x+5y=-3<br> x+8y=4<br> and<br> 2x+y=7<br> x-2y=-14
ASHA 777 [7]
2x + 5y = -3 ⇒ 2x +   5y = -3 
1x + 8y =  4 ⇒ <u>2x + 16y = 8
</u>                               -<u>11y</u> = <u>-11 </u>
                                -11     -11
                                    y = 1
                        2x + 5(1) = -3
                            2x + 5 = -3
                            <u>      -5     -5</u>
                                  <u>2x</u> = <u>-8</u>
                                   2      2
                                    x = -4
                              (x, y) = (-4, 1)

2x + 1y = 7     ⇒ 2x + 1y = 7
1x -  2y = -14 ⇒ <u>2x  - 4y  = -28</u>
                                   <u>5y</u> = <u>35</u>
                                    5      5
                                     y = 7
                             2x + 7 = 7
                             <u>      -7   -7</u>
                                   <u>2x</u> = <u>0</u>
                                    2     2
                                    x = 0
                              (x, y) = (0, 7)
4 0
3 years ago
What was his mistake????
stealth61 [152]
He didn't distribute 1/3 to x and 15 before solving
4 0
2 years ago
What is one third plus one seventh
Kryger [21]
To do this, change into common denominators.  The common denominator is 21 so change the problem from 1/3 + 1/7 to 7/21 + 3/21.  This gives you 10/21.  It is already in simplest form.
8 0
3 years ago
Help!!!! please!!!!!
Rufina [12.5K]

Answer:

cylinder

Step-by-step explanation:

this net forms a cylinder.

4 0
3 years ago
Read 2 more answers
Alex created a new game. Please HELP!​
natulia [17]

Answer:

64

Step-by-step explanation:

6 0
2 years ago
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