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Rus_ich [418]
3 years ago
8

Learning

Mathematics
1 answer:
andrezito [222]3 years ago
6 0

Answer:

13

Step-by-step explanation:

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konstantin123 [22]

{ \qquad\qquad\huge\underline{{\sf Answer}}}

Here we go ~

\qquad \sf  \dashrightarrow \:  \cfrac{9 {}^{(x + 1)}  - 3 {}^{2x} }{4 \times 3 {}^{(2x - 1)} }

\qquad \sf  \dashrightarrow \:  \cfrac{3{}^{2(x + 1)}  - 3 {}^{2x} }{4 \times 3 {}^{(2x - 1)} }

\qquad \sf  \dashrightarrow \:  \cfrac{3{}^{(2x + 2)}  - 3 {}^{2x} }{4 \times 3 {}^{(2x - 1)} }

here :

  • { \sf {3}^{(2x+2)}=({3}^{2x - 1})\sdot (3³)}

  • { \sf {3}^{(2x)}=({3}^{(2x - 1)})\sdot (3¹)}

\qquad \sf  \dashrightarrow \:  \cfrac{3{}^{(2x  - 1)}(3 {}^{3}   - 3 {}^{1}) }{4 \times 3 {}^{(2x - 1)} }

[ taking { \sf {3}^{(2x - 1)} }common here ]

\qquad \sf  \dashrightarrow \:  \cfrac{27 {}^{}   - 3 {}^{}}{4  }

\qquad \sf  \dashrightarrow \:  \cfrac{24{}^{}   {}^{}}{4  }

\qquad \sf  \dashrightarrow \: 6

7 0
2 years ago
Read 2 more answers
a slab or ribs at the butcher costs $4.55 per pound how much will it cost if you buy 3.5 pounds of ribs round to the nearest pen
lozanna [386]
15.93 because 4.55 times 3 and (4.55/2) so you'll end up with 15.93
4 0
3 years ago
Given that €1 = £0.72 a) how much is €410 in £? b) what is the £ to € exchange rate
avanturin [10]

Answer:

£295.2

€1.39

Step-by-step explanation:

€1 = £0.72

a) €410=  £0.72*410= £295.2

b) £1= €1/0.72= €1.39

6 0
4 years ago
A brownie recipe asks for three and one half times as much sugar as chocolate chips. If four and two thirds cups of sugar is use
Svetradugi [14.3K]

Answer:

1 1/3 chocolate chips

Step-by-step explanation:

you have to divide 4 2/3 ÷ 3 1/2

change mixed number to improper fraction

14/3÷7/2

KFC-Keep Flip Change

14/3 × 2/7 = 28/21

28÷21= 1 1/3

4 0
3 years ago
consider the line y= 2/3x-0. Find the equation of the line that is parallel to this line and passes through the point (8, 4).
tresset_1 [31]
Point-slope form of a line: we need a point (x₀,y₀) and the slope "m".
y-y₀=m(x-x₀)

slope intercept form :
y=m+b

m=slope

If the line is parallel to y=2/3 x-0, the line will have the same slope, therefore the slope will be: 2/3.

Data:
(8,4)
m=2/3

y-y₀=m(x-x₀)
y-4=2/3(x-8)
y-4=2/3 x-16/3
y=2/3 x-16/3+4
y=2/3 x-4/3  (slope intercept form)

Answer: The equation of the line would be: y=2/3 x-4/3.


if we have the next slope "m",then the perendicular slope will be:
m´=-1/m

We have this equation: y=2/3 x+0; the slope is: m=2/3.

The perpendicular slope will be: m`=-1/(2/3)=-3/2

And the equation of the perpendicular line to : y=2/3 x+0, given the point (8,4) will be:

y-y₀=m(x-x₀)
y-4=-3/2 (x-8)
y-4=-3/2 x+12
y=-3/2x + 12+4
y=-3/2x+16

answer: the perpendicular line to y=2/3 x+0 , given the point (8,4) will be:
y=-3/2 x+16
3 0
3 years ago
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