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2 years ago

PLSS HELP FOR BRAINLIST!!!! btw its my birthday :D

Mathematics

1 answer:

hichkok12 [17]2 years ago

6 0

Answer:

c(x)

Step-by-step explanation:

c(x) increases by 10 every time

a(x) is multiplied by 2

b(x) is multiplied by 4

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Plz help ZOOM IN TO SEE IT CLEAR

Alexandra [31]

answer #3 is correct, 3^1•3^7=3^2•3^5

because 3^1•3^7=3^8 and 3^2•3^5=3^8. they are equal!

8 0

3 years ago

Read 2 more answers

What is the factored form x2-x-42

Alina [70]

I believe that the it would be :

(x + 7) (x - 6)

So the answer would be D.

6 0

3 years ago

PLZ ANSWER FAST In an arithmetic sequence, a17 = -40 and a28 = -73. explain how to use this information to write a recursive for

jarptica [38.1K]

Answer:

$a_{r+1}=a_r-3$

Step-by-step explanation:

$Let\ first\ term=a\\\\Let\ constant\ difference=d\\\\n^{th}\ in Arithmetic\ sequence\ is\ given\ by\ a_n=a+(n-1)d\\\\a_{17}=-40\\\\a_{17}=a+(17-1)d\\\\a+16d=-40................eq(1)\\\\a_{28}=-73\\\\a_{28}=a+(28-1)d\\\\a+27d=-73.................eq(2)\\\\eq(1)-eq(2)\\\\a+16d-a-27d=-4-+73\\\\-11d=33\\\\d=-3\\\\$

$a_{r+1}=a+(r+1-1)d\\\\a_{r+1}=a+r\times d\\\\a_{r+1}=a+r\times (-3)\\\\a_{r+1}=a-3r.................................eq(3)\\\\a_r=a+(r-1)d\\\\a_r=a+(r-1)\times (-3)\\\\a_r=a-3r+3...................................eq(4)\\\\eq(3)-eq(4)\\\\a_{r+1}-a_r=(a-3r)-(a-3r+3)\\\\a_{r+1}-a_r=a-3r-a+3r-3\\\\a_{r+1}-a_r=-3\\\\a_{r+1}=a_r-3\\\\Required\ recursive\ formula:\ a_{r+1}=a_r-3$

4 0

4 years ago

How do you do this problem?

mr_godi [17]

(Use exponent rules)

first multiply fractions. then simply the fraction, after that write in exponential form. finally simply the expressions and get your answer.

The answer to this problem would be 3/7 or 0.428571.

5 0

3 years ago

PLS HELP ASAP!tysm if u help me!<3

Mars2501 [29]

Answer:

Step-by-step explanation:

It is a matter of just substituting the values into the given equation.

4m^2-2n+5

If m=5 and n=9 then it becomes

4(5^2)-2(9)+5

4(25)-18+5

100-18+5

6 0

3 years ago