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Alex73 [517]
3 years ago
13

What is the coordinate of the midpoint of segment AC

Mathematics
1 answer:
Aloiza [94]3 years ago
7 0

Answer:

-5.5

Step-by-step explanation:

\frac{-7+-4}{2}\\\\\frac{-11}{2}\\\\-5.5

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Find each sum (-4y+3) + (11y-5)
Airida [17]

Answer:

7y−2

Step-by-step explanation:

8 0
3 years ago
HELP ME!!! ITS DUE TOMMOROW!! Find the largest value of $r$ such that $6r^2+7r+8=6$.
Alex787 [66]
First you need to see that this is a quadratic. I need.to put all of the values on one side of equation to see what I got.
6r^2 + 7r + 8 = 6
6r^2 + 7r + 2 = 0

Now this one is difficult to factor so i will use quadratic equation:
[-b (+-) sqrt (b^2 - 4ac)] / (2a)

we know that a b and c are in a quadratic at these positions.
ax^2 + bx + c

so
[-7 (+-) sqrt (7^2 -(4)(6)(2)] / (2) (6)
[-7 (+-) sqrt (49 - 48)] / 12
[-7 (+-) 1] /12

split into the + and - for 2 answers
(-7 + 1) / 12
-6/12
-1/2

And
(-7 -1) /12
-8 / 12
-2/3

those are.the 2 answers

But but it says largest so -1/2
4 0
3 years ago
Read 2 more answers
Evaluate-2+7x^2-2x^3-8x+7x^4 at x=5
Murljashka [212]

Answer:

4262

Step-by-step explanation:

2 + 7x^2- 2x^3-8x +7x^4     at x = 5

= 2 + 7*(5)^2 - 2*(5)^3-8*5 +7*(5)^4

=2+175-250-40+4375

=4552-290

=4262

4 0
3 years ago
(X2)3<br> Power of a power rule
nalin [4]
2•3=6
I’m not for sure but used photomath
6 0
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How many ways can 4 people sit in a row of 7 ​chairs?
Ghella [55]

7\cdot6\cdot5\cdot4=840

6 0
3 years ago
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