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Vitek1552 [10]
3 years ago
7

What is 8 to the second power open parentheses 3x - 2 closed parentheses + 5 = 56. solve for x

Mathematics
1 answer:
Ratling [72]3 years ago
8 0
8² (3x -2) + 5 = 56  I do the exponents first
64 (3x -2) + 5 = 56  I distribute the 64 over the 3x-2
192x - 128 + 5 = 56 I combined liked terms  (-128+5)
192x -123 = 56  I add 123 to both side
192x - 123 +123= 56 + 123  Finally I divide both sides by 192
<u>192x</u> = <u>179
</u>192       192

x = \frac{179}{192}

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11..
lozanna [386]

Answer:

D. n= 0 or n= 4/5

Step-by-step explanation:

Factor and set each factor equal to zero.

n

=

0

,

4

5

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

Exact Form:

n

=

0

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4

5

Decimal Form:

n

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0.8

4 0
3 years ago
79 points for one question help
Serjik [45]

Answer:

x = 42

Step-by-step explanation:

The angle between the tangent and the secant is

\frac{1}{2} difference of the measure of the intercepted arcs, that is

x = 0.5( 136 - 52) = 0.5 × 84 = 42

4 0
3 years ago
If f(x)=16x-30 and g(x)=14x-6, for which value of x does (f-g)(x)=0
tamaranim1 [39]

Answer:

x=12

Step-by-step explanation:

f(x)=16x-30 and g(x)=14x-6

(f-g)(x)=0

f(x)=16x-30 -(14x-6)

Distribute

     = 16x -30 -14x +6

Combine like terms

     = 16x-14x -30+6

         2x-24

Set this equal to zero

2x-24 =0

Add 24 to each side

2x-24 +24=0+24

2x=24

Divide by 2

2x/2 =24/2

x = 12

5 0
2 years ago
Which expression is equivalent to 10x to the 6th why do the 12 / -5x to the negative 2 y to
Law Incorporation [45]

Answer: #2

Step-by-step explanation:

cuz i said so

6 0
2 years ago
Jason earned a total of $15900 from two part-time jobs. If he earned 3700 more from one job than the other , how much did he ear
KiRa [710]
Let's call job one x.

Job two can be y.

Jason earned $3,700 more from job y than x. Therefore y = x + 3700

From the two jobs, Jason earned $15,900. This can be written as x + y = 15900.

Now substitute y for x + 3700:

x + x + 3700 = 15900

2x + 3700 = 15900

Subtract 3700 from both sides:

2x = 12200

Divide both sides by 2:

x = 6100

Take the original equation x + y = 15900 and substitute x with 6100:

6100 + y = 15900

y = 9800

Job one (x) paid Jason $6,100.

Job two (y) paid Jason $9,800.
6 0
3 years ago
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