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nexus9112 [7]
4 years ago
15

Please answer any one on the page

Mathematics
2 answers:
pogonyaev4 years ago
7 0
\color{red} \huge\bf{holla}
\bf{your \: answer}

4x + 3(2 - x) = 8 - 2x \\ \\ 4x + 3(2) + 3( - x) = 8 - 2x \\ \\ 4x + 6 - 3x = 8 - 2x( - \times + = - ) \\ \\ 4x - 3x + 6 = 8 - 2x \\ \\ x + 6 = 8 - 2x \\ \\ x + 2x = 8 - 6 \\ \\ 3x = 2 \\ \\ x = \frac{2}{3}

\frac{19 - 2(3x - 1) }{5} = \frac{x + 2}{1} \\ \\ cross \: multiplication \\ 19 - 2(3x - 1) = 5(x + 2) \\ \\ 19 - 2(3x) -2 ( - 1) = 5(x) + 5(2) \\ \\ 9 - 6x + 2 = 5x + 10 \\ \\9 + 2 - 6x = 5x + 10 \\ \\ 11 - 6x = 5x + 10 \\ \\ - 6x - 5x = 10 - 11 \\ \\ - 11x = - 1 \\ \\ x = \frac{ - 1}{ - 11} = \frac{1}{11}

i hope it is helpful
mark as brainliest please
Nostrana [21]4 years ago
5 0

17. It looks like the funky symbol is averaging.  I'll render it as #.  Then a#b = (a+b)/2.

4 # 8 = 6

-5 # 0 = -2.5

2 # 2 = 2


18.  

A and D are complementary.  In degrees,

A+D=90

A and E are supplementary

A+E=180

Eliminating A,

A=90-D

90-D+E = 180

E=D+90

Answer: We conclude E is bigger than D by 90 degrees


19.

4x + 3(2 - x) = 8 - 2x  Given

4x + 6 - 3x = 8 - 2x   distributive law

x + 6 = 8 - 2x    collect like terms

x + 2x = 8 + - 6     add equals to both sides

3x = 2   like terms

x = 2/3   divide both sides by 3

Answer: x=2/3

\dfrac{19 - 2(3x-1)}{5} = x + 2

Multiply by 5

19-2(3x-1) = 5(x+2)

Distribute

19 - 6x + 2 = 5x + 10

Add 6x to both sides.  Add -10 to both sides.

19 + 2 - 10 = 5x + 6x

Collect terms,

11 = 11x

Divide by 11,

x = 1

Answer: x=1

20.

I'll let you make the chart, I'll just write.

We assume that each person likes a single color with no overlap.

We have girls B,C boys D,J colors g,p,r,y.

No person's name has the same length as their color.  Let's write the lengths

B5,C5,D4,J3         g5,p4,r3,y6

So B and C don't like g, D doesn't like p, J doesn't like r

Cathy's in a different grade means C doesn't like p

A boy likes red means B and C don't like r.

That leaves only y for C.    C likes y

That leaves only p for B.   B likes p

That leaves only g for J.   J likes g

That leaves: D likes r

Answer: Becky-pink, Cathy-yellow, Dck-red, Joe-green

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madreJ [45]

Useful Log Rules:

  • log(A*B) = log(A)+log(B)  .......... log rule 1
  • log(A/B) = log(A) - log(B) .......... log rule 2
  • log(A^B) = B*log(A)  ................... log rule 3

=========================================================

Part (a)

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log(500) = log(5*100)

log(500) = log(5*10^2)

log(500) = log(5)+log(10^2) .... use log rule 1

log(500) = log(5) + 2*log(10) .... use log rule 3

log(500) = 1.4650 + 2*2.096 ....... substitution

log(500) = 5.657

<h3>Answer: 5.657</h3>

=========================================================

Part (b)

All logs shown below are base 3.

log(2) = log(10/5)

log(2) = log(10) - log(5) .... use log rule 2

log(2) = 2.096 - 1.4650  ....... substitution

log(2) = 0.631

<h3>Answer: 0.631</h3>
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3 years ago
Con un diámetro de 4x y un ares de 28.26cm cual es el valor de X
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Answer:

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Step-by-step explanation:

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11x - 7 = 180

Add 7 to both sides

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11x = 187

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\frac{11x}{11} = \frac{187}{11}

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answer is down below

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4/10 0.4

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