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
navik [9.2K]
3 years ago
8

What is the tenth term in the sequence 9, 13, 17, 21, 25…?

Mathematics
1 answer:
Zinaida [17]3 years ago
6 0

Answer:

45

Step-by-step explanation:

9, 13, 17, 21, 25

We are adding 4 each time

9+4 = 13

13+4 =17

17+4 = 21

The common difference =4

a1 = 9

The formula is

an = a1+d(n-1) where n is the term number

an = 9+4(n-1)

We want the 10th term

a10 = 9+4(10-1)

     = 9+4(9)

    = 9+36

   = 45

You might be interested in
Solve for x and y simultaneously:<br> X-2y=3<br> 4xsquared-5xy+6y=3
Mkey [24]
X - 2y = 3
<span>4x^2 - 5xy + 6y = 3
lets solve for x the first and substitute in the second:
x = 3 + 2y
4(</span>3 + 2y)^2 - 5(3 + 2y)y + 6y = 3
4(9 + 12y + 4y^2) - 15y - 10y^2 = 3
36 + 48y +16y^2<span> - 15y - </span><span>10y^2 = 3
6y^2 + 33y + 33 = 0
we can solve using the general quadratic formula:
y = (-33 +- </span>√(33^2 - 4*6*33)<span>)/12
</span>y = (-33 +- √(297)<span>)/12
</span>so there are 2 solutions for y:
y1 = (-33 + √(297)<span>)/12
</span>y2 = (-33 - √(297)<span>)/12
</span>pick one and then substitute the y value in the first equation to find x
4 0
3 years ago
Read 2 more answers
Can someone help me plsssss I’ve been struggling
Studentka2010 [4]
I can’t see it








.........
5 0
3 years ago
Read 2 more answers
Answer with solution
adelina 88 [10]
In general, the scalar multiple of k times u,<span> is this: 

</span>k\vec u = k(ux, uy)=(Kux,Kuy) 

So, here's how we find 3\vec v 

3\vec v = 3 * (2,4) = (3*2,3*4) &#10;&#10;= (6,12) 

The answer is <span><span>(6,12).</span></span>
6 0
3 years ago
Read 2 more answers
Seven times a number equals<br> 70<br> Show work
DerKrebs [107]

Answer:

7 times 10 equals 70

Step-by-step explanation:

70 divided by 7 equal 10 and 70 divided by 10 equal 7

3 0
3 years ago
Which measurement is most accurate to describe the amount of water a teaspoon could hold?
Tasya [4]
5 mL. 1 (US)teaspoon = 4.92892 mL
5 0
3 years ago
Read 2 more answers
Other questions:
  • Bailey writes the expression g2 + 14g + 40 to represent the area of a planned school garden in square feet. If g = 5, what are t
    9·2 answers
  • What is the diameter of the circumference is 29.5?
    7·1 answer
  • Someone help yaaa girl out!!! Fr need help ASAP.
    14·2 answers
  • What is the least common multiple of 5 and 150
    14·1 answer
  • Find the surface area
    14·1 answer
  • Solve each system by elimination<br> 9) 5x+y=9<br> 10x-7y=-18
    13·1 answer
  • I need help with this question.​
    15·1 answer
  • 5. Solve the inequality. Show your work.<br> 6y – 8 ≤ 10
    8·2 answers
  • What is the equation of the line parellel to line L that passes through point (3, 3)?
    7·1 answer
  • Evaluate and simplify the expression when c=1 and d=3. 3(2c + d) - 4(c-d) + d2 = [?]​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!