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NikAS [45]
2 years ago
14

The second term in a geometric sequence is 50. The fourth term in the same sequence is 112.5 . What is the common ration in this

sequence
Mathematics
1 answer:
ale4655 [162]2 years ago
7 0
Let the common ratio be r.
then 
a2*r*r=a4
rearrange,
r^2=a4/a2=112.5/50=2.25
r=sqrt(2.25)=1.5 = common ratio
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171-55=x
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6 0
2 years ago
Write in slope-intercept form an equation of the line that passes through the points (−5,−9) and (5,1).
o-na [289]

Answer:

y=x-4

Step-by-step explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

m = (1--9)/(5--5)

m = (1+9)/(5+5)

    = 10/10

   = 1

The slope is 1

We have the slope and a point,so we can use point slope form

y-y1 = m(x-x1)

y-1 = 1(x-5)

y-1 = x-5

Add 1 to each side

y-1+1 = x-5+1

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This is slope intercept form (y= mx+b)

3 0
3 years ago
Factor 3h2 – 11h - 42
Zina [86]
The answer is D
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The factors of -126 that add to -11 are 7 and -18
replace -11h with 7h-18h
3h^2 + 7h - 18h - 42
Factor the first two terms and last two terms
h(3h+7) - 6(3h+7)
See how the two parentheses are the same?
THE ANSWER IS BELOW!!
(h-6)(3h+7)
the first parentheses has the terms that were outside, and the second has the original bracketed terms
This matches option D (it just multiplies the terms backwards, which gives the same result)
7 0
3 years ago
Read 2 more answers
A region c<br> B region d<br> C region a<br> D region b
anyanavicka [17]

Answer:

Region C

Step-by-step explanation:

y ≤ ¼ x + 3 maps the areas C and D including the common boundary line

y ≥ -x + 5 maps the areas B and C including the common boundary line

The common area mapped is C plus its boundaries

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2 years ago
Circle the table the represents a linear relationship.
nata0808 [166]
2nd one because it’s not a lot of big number I hope it helps
3 0
2 years ago
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