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2 years ago

8

Solving quadratic equation using the completing the square (a).9k²+5k=2

1 answer:

garik1379 [7]2 years ago

6 0

Answer:

06959399449444rifotvovty5

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which choice is the explicit formula for the following geometric sequence 0.5,-0.1, 0.02, -0.004, 0.0008

defon

Hello,

Answer is C

$a_1=0.5=\dfrac{1}{2} \\\\a_2=-0.1=-\dfrac{1}{10} =a_1*(-\dfrac{2}{10} )=a_1*(-\dfrac{1}{5} )\\\\a_3=0.02=\dfrac{2}{10^2} =a_2*(-\dfrac{2}{10} )=a_2*(-\dfrac{1}{5} )=a_1*(-\dfrac{1}{5} )^2\\...\\a_n=a_1*(-\dfrac{1}{5} )^{n-1}\\\\\boxed{a_n=0.5*(-0.2)^{n-1}}\\$

8 0

3 years ago

On Monday,it took Helen 3 hours to do a page of science homework exercises.The next day she did the same number of exercises in

Blababa [14]

Answer:

It's 3/2p!

Step-by-step explanation:

Because Helen do the same number of exercises on 2 days, the time to do and the average rate are inversely proportional!

So, if on Monday, Helen's average rate is p then on the next day, her average rate is:

p × 3 ÷ 2 = $\frac{3p}{2}$

=3/2p

Brainliest?

3 0

3 years ago

Factor the expression below.

Gnom [1K]

Answer:

A. (x-5)(x-5)

Step-by-step explanation:

We need to factor x^2-10x+25 into the form (x+y)(x+y) where 2y=-10 and y^2=25

2y=-10

y=-5

So this becomes (x-5)(x-5)

Hope this helped!

4 0

2 years ago

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Lauren's science class is taking a field trip to the nearest natural history museum. The

Orlov [11]

Answer:60

Step-by-step explanation:

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3 years ago

Jeanine is twice as old as her brother Marc. If the sum of their ages is 24, how old is Jeanine

Vesna [10]

Her brother is 8: 8 x 2 is 16, and 16 + 8= 24.

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3 years ago

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