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
aivan3 [116]
3 years ago
12

Find the 7th term of the arithmetic sequence 4x + 5, 11x + 9,18x + 13, ...

Mathematics
1 answer:
Svet_ta [14]3 years ago
5 0

Step-by-step explanation:

we see the common difference is

a2-a1 = 11x + 9 - 4x - 5 = 7x + 4

an = an-1 + (7x+4) = a1 + (n-1)×(7x+4)

for a7 we have then

a7 = 4x + 5 + 6×(7x +4) = 4x + 5 + 42x + 24 = 46x + 29

You might be interested in
Let X, the number of flaws on the surface of a randomly selected boiler of a certain type, have a Poisson distribution with para
kvasek [131]

Answer:

(a) 0.932

(b) 0.0653

(c) 0.032

(d) 0.316

(e) 0.251

Step-by-step explanation:

From the table with mean parameter μ = 5, we can compute the following cumulative and density probability

(a) P(X \leq 8) = 0.932 (cumulative)

(b) P(X = 8) = 0.0653 (density)

(c) P(9 \leq X) = 1 - P(X \leq 9) = 1 - 0.968 = 0.032 (cumulative)

(d) P(5 \leq X \leq 8) = P(X \leq 8) - P(X \leq 5) = 0.932 - 0.616 = 0.316 (cumulative)

(e) P(5 < X < 8) = P(X \leq 8) - P(X \leq 5) - P(X = 8) = 0.932 - 0.616 - 0.0653 = 0.251

5 0
3 years ago
Without graphing, tell whether the point (10, 37) is on the graph of y = 3x + 7.
slava [35]

Answer: YES

Plug in the numbers in your head.

y=3(10)+7

y=30+7

y=37 which is the y intercept

7 0
3 years ago
PLSS helpp <br><br> btw have a nice day
Natali5045456 [20]
It’s the first one! The table shows X going up and Y going down, so the slope would be negative!
8 0
3 years ago
How do you solve 5 1/4 - 2 3/4
CaHeK987 [17]

5 \frac{1}{4 } - 2  \frac{3}{4}

\frac{21}{4}  -  \frac{11}{4}

\frac{21 - 11}{4}

\frac{10}{4}

\frac{5}{2}

7 0
3 years ago
Read 2 more answers
Kevin and his children went into a restaurant and he bought $31.50 worth of hotdogs and drinks. Each hotdog costs $4.50 and each
Musya8 [376]

Answer:

6 hot dogs, 2 drinks

Step-by-step explanation:

let y = number of hot dogs

let x = number of drinks

system:

y = 3x

4.5y + 2.25x = 31.50   (standard form:  y = -1/2x + 7)

if you graph the system, lines intersect at (2, 6)

6 0
3 years ago
Other questions:
  • A number is multiplied by 2,and tgen the product is added to 9. Tge result is 49.Whatvus tye number
    10·1 answer
  • Sebastian studies from 3:15 - 4:45 p.m his sister,Sara studies from 4:30 -6:15 p.m who studies longer and by how,much?
    13·1 answer
  • Which of the following represent(s) an equation of the line passing through the points A(5, 6) and B(4, 8). Select all that appl
    12·1 answer
  • Which is greater 1 gal or 15 c
    13·2 answers
  • Pls answer my question​
    14·1 answer
  • [4]
    12·1 answer
  • Find the slope of the line and that passes through (7, 2) and (-7, 48)
    6·1 answer
  • Which of these is not an equation?
    8·1 answer
  • The unit cost, in dollars, to produce bins of cat food is $4 and the fixed cost is $18424. The revenue function, in dollars, is
    14·1 answer
  • 1. Write a rule that will take the triangle to a congruent triangle. Write your rule as (x,y)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!