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3 years ago

Solve for x, rounding to the nearest hundredth. 70 - 2^3x = 35

Mathematics

2 answers:

agasfer [191]3 years ago

6 0

Answer:

x= 1.71

Step-by-step explanation:

We need to isolate x in the equation, first subtract 70 from the left side, so the equation is, - $2^{3x\\}$ =-35. There is a negative sign in both equations so we cancel them out so our equation is $2^{3x\\}$ =35. Now we use log, so our equation now looks like {log(35)/log(2)}/3=x. When we do it out we get that x=1.70976, and when rounded we get, x-1.71.

eduard3 years ago

5 0

Answer:

x=4.375

Step-by-step explanation:

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Read 2 more answers

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

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

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