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alekssr [168]
3 years ago
15

Solving Systems of linear equations by graphing. no graphing device.

Mathematics
1 answer:
valentina_108 [34]3 years ago
6 0

Answer: (1,3)

Step-by-step explanation:

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Find the 20th term in the sequence, where the first term is -2 and the common ratio is-2.
geniusboy [140]

Answer:

Step-by-step explanation:

(1)

a1=-2

r=-2

a_{20}=(-2)(-2)^{20-1}=-2(-2)^{19}=2^{20}=1048576\\(2)\\a_{1}=1000\\r=\frac{200}{1000} =\frac{1}{5} \\a_{8}=1000(\frac{1}{5} )^{8-1}=1000(.2)^7=0.0128\\(3)\\a_{1}=2\\a_{3}=50\\a_{2}=\sqrt{2*50} =10\\r=\frac{10}{2} =5

6 0
3 years ago
Is the number 3 a rational number?
VikaD [51]

Answer:

Yes.

Step-by-step explanation:

The number 3 is a <u>natural number</u>, and all of these types of numbers are rational.

Another way to look at it is if a number can be <u>written as a fraction</u>, the number is rational.

5 0
3 years ago
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Simplify the following question
fiasKO [112]

Answer:

<em>−  2sin(b) / cos(2b)</em>

​

Step-by-step explanation:

DIFFERENTIATE W.R.T. B is a different method entirely

We simply add together the numerators and set with 2cos

then keep this number and add to sinb and square it.

then repeat initial 2 + cosb ^2 but instead of multiplying its add.

Then set the whole division to -sin (2b) squared then +1

<em> −  2cos(b)(3(sin(b))^2+(cos(b))^2)  /  −(sin(2b)) ^2 +1  </em>

​

 

5 0
2 years ago
Ben is paid £9.60 per hour.
marshall27 [118]
The answer is 85.20$
7 0
3 years ago
Read 2 more answers
Timed please help added picture​
DaniilM [7]

Answer:

\sqrt[4]{2}^{3}

Step-by-step explanation:

7 0
3 years ago
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