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solong [7]
4 years ago
15

7+3x−12x=3x+17+3x−12x=3x+1 solve for X

Mathematics
2 answers:
mariarad [96]4 years ago
4 0
X is equal to -11/6 or -1.8333333333..................................
nydimaria [60]4 years ago
4 0
This is a very long and complex problem, so I am going to help you organize the details.

Always remember that you can only add alike variables

ex. 3x + x= 4x

7+3x-12x = -9x+7

3x+17+3x-12x= -6x+17

Now lets combine:

-9x+7=-6x+17=3x+1


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What is the number six million, thirty thousand, expressed in scientific notation? 6.03 × 10^6
TEA [102]
The answer is B. 6.3 * 10^6
6.3 * 10^6 = 6,300,000
Hope this helps!
8 0
3 years ago
Read 2 more answers
The average depth of the ocean is about
Dafna1 [17]

The height, in meters, of the tallest tower on the Incheon Bridge is 230.5 meters

From the question,

The average depth of the ocean is about 3688 meters.

Also,

To reach this depth, one would have to stack the tallest tower of the Incheon Bridge in South Korea 16 times.

Now, to determine the height, in meters, of the tallest tower on the Incheon Bridge,

We will divide the average depth of the ocean by 16

That is,

The height of the tallest tower on the Incheon Bridge = 3688 m ÷ 16

∴ The height of the tallest tower on the Incheon Bridge = 230.5 meters

Hence, the height, in meters, of the tallest tower on the Incheon Bridge is 230.5 meters

Learn more here: brainly.com/question/3029763

6 0
3 years ago
Write each complex number in rectangular form.
hram777 [196]
Hello,

A)
cos 135°=- cos 45°=-√2/2
sin 135°=sin45°=√2/2
2(cos 135°+i sin 135°)=-√2 + i*√2

B)
cos 120°=-cos 30°=-√3 /2
sin 120°=sin 30°=1/2

3(cos 120° + i sin 120)=-3/2*√3 +i*3/2

C)
cos (5π/4)=-cos (π/4)=-√2 /2
sin (5π/4)= -sin(π/4)=-√2 /2
5(cos (5π/4)+i sin (5π/4))=-5/2*√2 +i *5/2*√2

D)
cos(5π/3)=cos(π/3)=√3 /2
sin (5π/3)=-sin(π/3)=-1/2

4(cos(5pi/3)+i sin (5pi/3))
=2√3- 2*i


4 0
3 years ago
Samuel plans to install a fence around the perimeter of his yard. His yard is shaped like a square and has an area of 40,000 squ
NISA [10]

Answer:

$450

Step-by-step explanation:

The area of the square is 40,000 square feet so the square's side length is 20 (√40,000).

The company charges $2.50 per foot, and the perimeter is 80 (20*4), so the  cost is $400 ($2.50 * 8).

Add on the $50 installation fee and the total cost is $450 ($400 + $50).

7 0
3 years ago
A population of insects grows exponentially, as shown in the table. Suppose the increase in population continues at the same rat
oksano4ka [1.4K]

<u>Answer-</u>

<em>The insect population at the end of week 11 is </em><em>1730</em><em>.</em>

<u>Solution-</u>

A population of insects grows exponentially.

The general form of exponential function is,

y=ab^x

Where,

a, b are constants.

Putting the data given in the table, in the the equation in order to get the values of a, b

At (0, 20)

\Rightarrow 20=ab^0

\Rightarrow a\cdot (1)=20

\Rightarrow a=20

Now the exponential function becomes,

y=20b^x

At (1, 30)

\Rightarrow 30=20b^1

\Rightarrow 20b=30

\Rightarrow b=\dfrac{30}{20}

\Rightarrow b=\dfrac{3}{2}

Now the equation becomes,

y=20(\frac{3}{2})^x

For calculating the number of insects at the end of the 11th week, putting x=11, so

y=20(\frac{3}{2})^{11}

=1729.95 \approx 1730

8 0
4 years ago
Read 2 more answers
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