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laila [671]
3 years ago
13

I need help for this question

Mathematics
1 answer:
lyudmila [28]3 years ago
3 0
Number8)4n+6-2n=2(n+3) 
4n+6-2n=2n+6 then collect the like terms
(4n-2n-2n=0)
0n=0

2(3b-4)=4b-11
6b-8=4b-11 collect the like terms
(6b-4b=2b)(-11+8=-3)

answer
2b=-3 then divide both sides by 2
b=-1.5
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HURRY!!!!!!!!!<br><br> Given P(5,10,8) and Q(7,11,10), find the midpoint of the segment PQ.
rusak2 [61]

Answer:

P_{m}=(6,10.5,9)

Step-by-step explanation:

The mid point can be found with the formula

P_{m}=(\frac{x_{1}+x_{2} }{2},\frac{y_{1} +y_{2} }{2} ,\frac{z_{1}+z_{2}  }{2} )

The given coordinates are P(5,10,8) and Q(7,11,10).

Replacing coordinates in the formula, we have

P_{m}=(\frac{5+7}{2},\frac{10+11 }{2} ,\frac{8+10}{2} )=(\frac{12}{2},\frac{21 }{2} ,\frac{18}{2} )\\P_{m}=(6,10.5,9)

Therefore, the mid point of the segment PQ is P_{m}=(6,10.5,9)

4 0
3 years ago
Multiply.<br><br> (3x+2)(2x−5)<br><br><br> 6x^2+4x−3<br> 6x^2−10<br> 6x^2−11x−10<br> 6x^2−13x−3
Serjik [45]

Answer: Heyaa! ^^

Your Answer when multiplied is.. 6x²−11x−10

Step-by-step explanation:

  • 6x^2−11x−10
  • Expand the polynomial using the FOIL method.

                    - FOIL EXPLANATION -

  • A handy way to remember how to multiply two binomials.

It stands for "First, Outer, Inner, Last"

  • - It is the sum of: -

· multiplying the First terms,

· multiplying the Outer terms,

· multiplying the Inner terms, and

· multiplying the Last terms

<em>Hopefully this helps you! ~</em>

6 0
2 years ago
Using the numbers -4, 10, 8, 2, -3, -5 create two expressions that equal six
docker41 [41]

Answer:

8-2 and 10-3

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Can someone help me answer these two questions please.
mr_godi [17]

Answer:

The first one is a the second one is b

Step-by-step explanation:

3 0
2 years ago
Could someone give me an answer and explain how you got it ?
tankabanditka [31]

Answer:

A (9, 3)

Step-by-step explanation:

First the point is rotated 90° counterclockwise about the origin.  To do that transformation: (x, y) → (-y, x).

So S(-3, -5) becomes S'(5, -3).

Next, the point is translated +4 units in the x direction and +6 units in the y direction.

So S'(5, -3) becomes S"(9, 3).

3 0
2 years ago
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