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
iris [78.8K]
3 years ago
9

PLEASE HELP!!!

Mathematics
1 answer:
ANEK [815]3 years ago
3 0

The answer is D an = -5n + 12

Use the formula an = a1 + d(n - 1) to solve

an = 7 + (-5)(n - 1)

an = 7 + (-5n +5)

an = -5n + 12

You might be interested in
Dana has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the ra
Sedaia [141]

Answer:

2hrs 40 minutes

Step-by-step explanation:

The formula for distance is expressed as:

d=st, s=speed, t=time

#The time taken to run:

d=st\\\\t=d/s\\\\t_r=d/8

#The time taken to walk:

d=st\\\\t=d/s\\\\t_w=d/2

#Since the distances are the same:

d_r=8t_r,d_w=2t_w\\\\8t_r=2t_w\\\\t_r+t_w=4->t_w=4-t_r\\\\\therefore8t_r=2(4-t_r)\\\\8t_r=8-2t_r\\\\t_r=1\frac{1}{3} \hrs\\\\t_w=4-1\frac{1}{3}=2\frac{2}{3}\ hrs

Hence, Dana spends 2hrs 40 minutes walking back

8 0
3 years ago
Look at this graph.<br><br><br> The slope of line k is
FinnZ [79.3K]
I think it’s -2 k i hope I’m right
5 0
1 year ago
Find.the slope that passes they 3,5 &amp; 5,8
11Alexandr11 [23.1K]
Very hard question. .....
6 0
3 years ago
Read 2 more answers
The buyer for a convenience store negotiates a single discount for a gallon of yellow shaved ice flavoring, based on the change
Komok [63]

Answer:

$8.88

Step-by-step explanation:

12.00 - 26%(3.12)= $8.88

7 0
3 years ago
Look at these numbers. 0.3,
timama [110]
0.3.......the 3 is in the tenths place 
0.103....the 3 is in the thousandths place
0.13.....the 3 is in the hundredths place

0.3 is ur answer

8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the following equation-<br> p-4=(-9)+p
    15·1 answer
  • Aria and her children went into a bakery and will buy donuts and brownies. She must buy at least 6 donuts and brownies altogethe
    14·1 answer
  • Which equation can be used to solve the problem? 
    8·2 answers
  • 12. The table shows the number of people who attended a
    5·1 answer
  • Is my answer correct on question 11, if not please help
    13·1 answer
  • 80 POINTS! WILL GIVE BRAINLY
    6·2 answers
  • Solve the equation 66 = 3t+12<br> ASAP PLS PLS ASAP IM FAILING I HAVE A 33%
    12·1 answer
  • Which digit in the following number is the one that determines its precision?
    9·1 answer
  • PLease help middle school math
    11·1 answer
  • The function below describes the relationship the height H and the width W of a rectangle with area 75 sq. units. H(w)= 75/w wha
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!