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Scilla [17]
3 years ago
7

Write an equation for the nth term of the arithmetic sequence. Then find a10.

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0

Answer:

-3n

a10= -30

Step-by-step explanation:

the distance between -3 and -6 is 3.

if you multiply 3 by the 1st term, it's just 3, so the 3 needs to be a -3.

For a10, you plug in 10 into the equation which is -3n. and that is -30.

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It tells you how temperature varies with pressure :)
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3 years ago
Read 2 more answers
Simplify: 1/5(-16-9) + 4^2 ÷8​
enot [183]

Answer:

-3

Step-by-step explanation:

you start with the parentheses -16-9 turns into -16 + (-9)

and then you try to solve everything.

8 0
3 years ago
Point m is located at 4,-2 what is located 2 units for point m
eimsori [14]

Answer:

None

Step-by-step explanation:

Given

m = (4,-2)

Required

Point 2 units from m

There are 4 possible points 2 units from m and they are:

m' = (4+2,-2) = (6,-2)

m" = (4,-2+2) = (4,0)

m'''= (4-2,-2) = (2,-2)

m'''' = (4,-2-2) = (4,-4)

From the graph, we have:

A = (4,2)

B = (-4,2)

C = (2,-3)

None of the points is 2 units from m

7 0
2 years ago
I am having trouble with this problem. I need to find the lengths of this right triangle. How would you do this?
podryga [215]
You labeled the triangle wrong sides 'a' and 'b' are supposed to be the sides that make the right angle.  the other side is called the hypotenuse which is the longest side which you should have labeled 'c'

so Pythagorean theorem says
a^2+b^2=c^2
so
(2x+1)^2+(11x+5)^2=(12x+1)^2
distribute
(4x^2+4x+1)+(121x^2+110x+25)=(144x^2+24x+1)
add like terms
125x^2+114x+26=144x^2+24x+1
subtract 125x^2 from both sides
114x+26=19x^2+24x+1
subtract 114x from both sides
26=19x^2-90x+1
subtract 26 from both sides
0=19x^2-90-25
factor
(x-5)(19x+5)=0
therefor x-5=0 and/or 19x+5=0
so
x-5=0 add 5 to both sides
x=5
19x+5=0
subtract 5 from both sides
19x=-5
divide both sides by 19
x=-5/19
since side legnths can't be negative, we can cross this solution out

so x=5
subtitute
1+2x
1+2(5)
1+10=11
side a=11

11x+5
11(5)+5
55+5=60
side b=60

12x+1
12(5)+1
60+1=60
side c=61
add them all up
side a+b+c=11+60+61=132=total legnth
5 0
3 years ago
By visual inspection, determine the best-fitting regression model for the data
igor_vitrenko [27]

Answer:

it's quadratic

Step-by-step explanation:

sorry i answered late but i hope this helps other people

4 0
3 years ago
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