1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hichkok12 [17]
2 years ago
10

2[(3x + 5) – 7] = 3(4x – 3)

Mathematics
2 answers:
fenix001 [56]2 years ago
8 0

Answer:

5 / 6

Step-by-step explanation:

2 [ ( 3x + 5 ) - 7 ] = 3 ( 4x - 3 )

2 [ ( 3x + 5 - 7 ] = 3 ( 4x - 3 )

2 [ 3x - 2 ] = 3 ( 4x - 3 )

6x - 4 = 12x - 9

12x - 9 = 6x - 4

12x - 6x = - 4 + 9

6x = 5

x = 5 / 6

podryga [215]2 years ago
7 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Step-by-step explanation:

Exact Form:

x=5/6

Decimal Form:

x=0.8¯3

You might be interested in
Jalyn plans to sell Algebra Nation t-shirts as a fundraiser for a new scholarship initiative. The wholesale t-shirt company char
ivolga24 [154]
This situation can be represented by a step function.If Jalyn purchases 60 shirts the total cost will be $600.At these prices it is cheaper to buy 76 shirts than it is to buy 75 shirts.
7 0
3 years ago
Please help me with this question I’m stuck!
Natasha_Volkova [10]
12 is the answer.

The sequence is 12, 6, 3, 3/2
8 0
3 years ago
Find the exact value by using a half-angle identity. sin(5pi/12)
anzhelika [568]

Find <span>tan<span>(<span><span>5π</span>12</span>)</span></span> and sin ((5pi)/12)
Answer: <span>±<span>(2±<span>√3</span>)</span>and±<span><span>√<span>2+<span>√3</span></span></span>2</span></span>

Explanation:

Call tan ((5pi/12) = t. 
Use trig identity: <span><span>tan2</span>a=<span><span>2<span>tana</span></span><span>1−<span><span>tan2</span>a</span></span></span></span>
<span><span>tan<span>(<span><span>10π</span>12</span>)</span></span>=<span>tan<span>(<span><span>5π</span>6</span>)</span></span>=−<span>1<span>√3</span></span>=<span><span>2t</span><span>1−<span>t2</span></span></span></span>
<span><span>t2</span>−2<span>√3</span>t−1=0</span>

<span>D=<span>d2</span>=<span>b2</span>−4ac=12+4=16</span>--> <span>d=±4</span>

<span>t=<span>tan<span>(<span><span>5π</span>12</span>)</span></span>=<span><span>2<span>√3</span></span>2</span>±<span>42</span>=2±<span>√3</span></span>

Call <span><span>sin<span>(<span><span>5π</span>12</span>)</span></span>=<span>siny</span></span>
Use trig identity: <span><span>cos2</span>a=1−2<span><span>sin2</span>a</span></span>
<span><span>cos<span>(<span><span>10π</span>12</span>)</span></span>=<span>cos<span>(<span><span>5π</span>6</span>)</span></span>=<span><span>−<span>√3</span></span>2</span>=1−2<span><span>sin2</span>y</span></span>
<span><span><span>sin2</span>y</span>=<span><span>2+<span>√3</span></span>4</span></span>
<span><span>siny</span>=<span>sin<span>(<span><span>5π</span>12</span>)</span></span>=±<span><span><span>√<span>2+<span>√3</span></span></span>2</span></span></span>

5 0
3 years ago
A rectangle has a height of 4x ^ 3 width of x ^ 3 + 3x ^ 2 + 2x . Express the area of the entire rectangle .
astra-53 [7]

Answer:

4x^6+12x^5+8x^4

Step-by-step explanation:

To find the area of a triangle, you need to multiply the width by the height. In this case:

(4x^3)(x^3+3x^2+2x)=\\4x^6+12x^5+8x^4

Hope this helps!

6 0
3 years ago
What is the period of the sinusoidal function
rodikova [14]

Answer:

The period of the sine curve is the length of one cycle of the curve. The natural period of the sine curve is 2π. So, a coefficient of b=1 is equivalent to a period of 2π. To get the period of the sine curve for any coefficient b, just divide 2π by the coefficient b to get the new period of the curve.

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • John and Mary Billings own a condominium with an assessed value of $110,000. If the tax rate is 25 mills per $1.00 of assessed v
    14·2 answers
  • What fractions added equal 14/15
    8·1 answer
  • Solve for x.<br> 3(3x - 1) + 23 - x) = 0
    7·1 answer
  • A jetliner is traveling at 500 mph. How far does it travel in 10 seconds. I am trying to calculate how many cell towers a call w
    5·1 answer
  • How would you factor c(m - n) d(m - n)?
    7·1 answer
  • a country's population in 1990 was 242 million, in 1999 it was 244 million. estimate the population in 2013
    7·1 answer
  • If an equation, Y varies directly as X varies. If Y equals 208 when X equals 13, what is the value of X when Y equals -144?
    13·1 answer
  • What is the slope for this table? <br> Give an explanation.
    15·2 answers
  • WILL GIVE BRAINLIEST!!
    13·2 answers
  • (x + 7) + (y + 4)2 = 16<br><br> Center:<br><br> Radius:
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!