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3 years ago

If you are good at sequences in math please help I am giving more points

Mathematics

2 answers:

MaRussiya [10]3 years ago

6 0

Answer:

C. is the answer.

Step-by-step explanation:

Arithmetic sequences are linear.

So their slope is the same no matter the two points you choose.

We are given the following two points:

(7,71)

(16,26)

-----------

We can find the slope by subtracting vertically here and putting y difference on top of x difference.

71-26=45

7-16=-9

The slope is 45/-9=-5.

The equation so far is

a(n)=-5n+b

To find b we will use a known point on the line like (7,71):

71=-5(7)+b

71=-35+b

Add 35 on both sides:

106=b

The equation for the nth term is

a(n)=-5n+106

Now you could expand your choices to see switch matches.

Or you could write this equation into the form presented in the choices.

a(n)=-5(n-1+1)+106

a(n)=-5(n-1)-5+106

a(n)=-5(n-1)+101

a(n)=101-5(n-1)

vodka [1.7K]3 years ago

4 0

Answer:

C. 101 - 5(n - 1)

Step-by-step explanation:

d = (26 - 71)/(16 - 7)

d = -45/9

d = -5

a7 = a1 + (7-1)(-5)

71 = a1 - 30

a1 = 101

an = 101 + (n - 1)(-5)

an = 101 - 5(n - 1)

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Hill in the blank: Type your answer in the box and then clichWhat is the value of n?144eAnswer:

Inessa05 [86]

The correct answer is $95$ °.

To solve for $n$ , you can start by finding the measures of the triangle's interior angles. Knowing that a straight line measures $180$ °, you can subtract the given values from $180$ ° to find the measures of the respective supplementary interior angles. That would give you $59$ ° $(180-121)$ and $36$ ° $(180-144)$ .

Now, knowing that the measure of all the interior angles of a triangle is also $180$ °, you can add the two interior angles you know $(59+36)$ and subtract those from $180$ °. Doing so would give you the measure of the missing third angle, which is $85$ °.

Finally, because angle $n$ is the supplementary angle of the missing angle from the previous step, simply subtract that angle's measure from $180$ ° to find $n$ °, which is $180-85$ or $95$ °.

5 0

4 years ago

Please help me quickly !!

xeze [42]

Answer:

Jada should have multiplied both sides of the equation by 108.

Step-by-step explanation:

-4/9=x/108

you must multiply both sides

108*-4/9 = x*108

=-9/4

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3 years ago

The formula for the perimeter, P, of a rectangle is P = 2L + 2w, where L is the length and W is th width sovle the formula for t

vichka [17]

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VladimirAG [237]

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