1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleonysh [2.5K]
2 years ago
7

I have the first part but I don't know how to do the second part h e l p

Mathematics
1 answer:
Debora [2.8K]2 years ago
3 0

\bf \begin{array}{cll} \stackrel{ordinal}{position}&\stackrel{term}{value}\\ \cline{1-2} 1&12\\ 2&12+d\\ 3&12+d+d\\ 4&12+d+d+d\\ &12+3d \end{array}\qquad \implies ~\hfill \begin{array}{llll} \stackrel{\textit{4th term}}{12+3d}~~=~~\stackrel{\textit{4th value}}{3}\\\\ 3d=-9\implies d = \cfrac{-9}{3}\\\\ \stackrel{\textit{common difference}}{d = -3} \end{array}

well, we know the common difference is -3, to go from the 4th term to the 8th term, we need to add "d" 4 times or namely 3+4(-3), likewise to go from the 13th term to the 19th term we have to add "d" 6 times, or namely -24 + 6(-3).

\bf \stackrel{\textit{8th term}}{3+4(-3)}\implies 3-12\implies -9 \\\\\\ \stackrel{\textit{19th term}}{-24 + 6(-3)}\implies -24-18\implies -42

You might be interested in
Can someone help I’ll give brainliest!
12345 [234]
D. None of those. The actual answer should be X + 7/2
3 0
2 years ago
You put 500 dollars into your savings account. Your bank account offers a yearly interest rate of 3.5% and you leave the money i
Alex777 [14]

Answer:

87.5

Step-by-step explanation:

87.5 because if your earning a 3.5% of the $500 then that means you're earning 17.5 dollars.in an year therefore in five years you multiply the 17.5 x 5 years which will give you at 87.5 so we've had in total you can get to 587.5 dollars

4 0
3 years ago
What is (f - g)(x)?<br>f(x) = 5x<br>g(x) = 3x2 - 8x​
erma4kov [3.2K]

Answer:

(5x)-(3x^2-8x)=-3x^2+13x

Step-by-step explanation:

(f-g)(x)=f(x)-g(x)

Using this, we can subtract and find the answer.

(5x)-(3x^2-8x)=-3x^2+13x

6 0
2 years ago
It takes Prakash 2 1/2 hours to paint a medium sized room. If he can work 50 minutes each day, how many days will it take to com
Aleksandr-060686 [28]
60 min in one hour so 60+60+30=150.
150 divided 50 mins = 3 days (50+50+50=150)
3 0
3 years ago
Solve with interval notation Solve: 5 | x − 2 | + 4 &gt; 8
Gnesinka [82]

Answer:

x<6/5, x>14/5

Step-by-step explanation:

Steps

$5\left|x-2\right|+4>8$

$\mathrm{Subtract\:}4\mathrm{\:from\:both\:sides}$

$5\left|x-2\right|+4-4>8-4$

$\mathrm{Simplify}$

$5\left|x-2\right|>4$

$\mathrm{Divide\:both\:sides\:by\:}5$

$\frac{5\left|x-2\right|}{5}>\frac{4}{5}$

$\mathrm{Simplify}$

$\left|x-2\right|>\frac{4}{5}$

$\mathrm{Apply\:absolute\:rule}:\quad\mathrm{If}\:|u|\:>\:a,\:a>0\:\mathrm{then}\:u\:<\:-a\:\quad\mathrm{or}\quad\:u\:>\:a$

$x-2<-\frac{4}{5}\quad\mathrm{or}\quad\:x-2>\frac{4}{5}$

Show Steps

$x-2<-\frac{4}{5}\quad:\quad x<\frac{6}{5}$

Show Steps

$x-2>\frac{4}{5}\quad:\quad x>\frac{14}{5}$

$\mathrm{Combine\:the\:intervals}$

$x<\frac{6}{5}\quad\mathrm{or}\quad\:x>\frac{14}{5}$

5 0
3 years ago
Other questions:
  • An airplane flys at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will tak
    6·1 answer
  • If 8x=-4(x+3) then x equals
    15·1 answer
  • I will give brain to the person with the right answer.
    14·2 answers
  • Find the measure of ∠ECB. Circle A is intersected by line CD at points D and E and line CB at point B, forming angle ECB outside
    11·2 answers
  • What is 312.501 rounded to the nearest whole number? A. 310 B. 311 C. 312 D. 313
    5·1 answer
  • Find the coordinates of the midpoint of the segment whose endpoints are given.
    11·2 answers
  • Solve the equation <br> 7x^2+21=0
    12·1 answer
  • X^2 +3x+37=0 Help solve
    9·1 answer
  • Send penis pics qaa3r3t24t​
    9·2 answers
  • Given the two similar octagons
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!