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3 years ago

Exponential functions algebra 1

Mathematics

1 answer:

meriva3 years ago

5 0

Your question is very unclear

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Is the sequence geometric? If so, identify the common ratio. 6, 12, 24, 48,

maxonik [38]

Yes
common ratio= r2/r1 or r3/r2 or r4/r3 if it is all the same then it is a geometric sequence, so the common ratio is 2 because 12/6=2, 24/12=2 and 48/24=2

4 0

4 years ago

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Which expression is equivalent to 12b + 3a? choices: a (a + b) x 12 b 3 (4b + a) c ab x 12 x 3 d (12 x 3) + (b x a)

gavmur [86]

Answer:

The answer to the equation is B.

Step-by-step explanation:

6 0

2 years ago

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Answer po plss plss plss

Dmitry_Shevchenko [17]

Answer:

$( 3) - ( 4) + ( 18) + (6) - (5)$

$(3+18+6)+(-4-5)$

$( 27) + (-9)$

$18$

8 0

3 years ago

63 is 90% of what number? In number line

Reika [66]

63/x=90/100
5670=100x
56.7

7 0

3 years ago

Precalculus PLEASE HELP ME right answers only check all please

Alex_Xolod [135]

Given :

$cos(x)cos(\frac{\pi }{7}) + sin(x)sin(\frac{\pi }{7})=-\frac{\sqrt{2}}{2}$

We know the identity

$cos(x)cos(y) + sin(x)sin(y)=cos(x-y)$

We use this property to simplify the left hand side

So $cos(x)cos(\frac{\pi }{7}) + sin(x)sin(\frac{\pi }{7})=cos(x - \frac{\pi }{7})$

$cos(x - \frac{\pi }{7}) =-\frac{\sqrt{2}}{2})$

we know ,

when $cos(x) =-\frac{\sqrt{2}}{2})$ then

$x = \frac{3\pi }{4} , \frac{5\pi }{4}$

For $cos(x - \frac{\pi }{7}) =-\frac{\sqrt{2}}{2})$

$x - \frac{\pi }{7}= \frac{3\pi }{4} and x - \frac{\pi }{7}= \frac{5\pi }{4}$

Add $\frac{\pi }{7}$ on both sides

$x= \frac{3\pi }{4} + \frac{\pi }{7} and x= \frac{5\pi }{4} +\frac{\pi }{7}$

Finally we add 2npi for general solution

So options C and D are correct

6 0

3 years ago