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
4vir4ik [10]
3 years ago
12

I NEED HELP PLZ, PLZ, I NEED HELP, I AM BEGGING YOU

Mathematics
2 answers:
erastova [34]3 years ago
8 0

Answer:

tn = 8n -7

Step-by-step explanation:

given : t2=9, t4=25

the formula is:

tn = t1 + (n-1) d

gonna find d first:

d = (25-9) /(4-2) = 16/2 = 8

and find tn1:

t1 = 9-8 = 1

so, tn = 1 + (n-1) (8) = 1 +8n -8

tn = 8n -7

mel-nik [20]3 years ago
7 0

Answer:

Solution given

n th term[tn]=?

1st term =a

difference =d

we have

t2=9

a+(n-1)d=9

a+(2-1)d=9

a+d=9

a=9-d..................[1]

again

t4=25

a+(n-1)d=25

a+(4-1)d=25

now

substituting value of a

9-d+3d=25

2d=25-9

d=16/2

d=8

substituting value of d in equation 1.

,a=9-8

a=1

we have

tn term =a+(n-1)d=1+(n-1)8=1+8n-8=<u>8</u><u>n</u><u>-</u><u>7</u>

<u>n</u><u> </u><u>t</u><u>h</u><u> </u><u>t</u><u>e</u><u>r</u><u>m</u><u> </u><u>=</u><u>8</u><u>n</u><u>-</u><u>7</u><u> </u>

You might be interested in
the formula for the perimeter of a square is p=4s. find the side of the square if the perimeter is 96 inches
s2008m [1.1K]

Answer:

24 inches

Step-by-step explanation:

Plug in 96 for p in the equation

96 = 4s

Divide both sides by 4 to isolate the variable

24 = s

4 0
3 years ago
The graph shows the type and number of coins that three students plan to donate during a coin drivefundraiser.Coin Drive Donatio
yarga [219]

Answer:

39 dimes

Explanation:

From the graph:

• Total number of nickels = 9+4+7=20

,

• Total number of dimes = 7+10+9 = 26

The ratio of total nickels to total dimes = 20:26

If the total number of nickels the students donate is increased to 30, we have:

\frac{\text{Total Nickels}}{\text{Total Dime}}\colon\frac{20}{26}=\frac{30}{x}

We then solve for x:

\begin{gathered} 20x=30\times26 \\ x=\frac{30\times26}{20} \\ x=39 \end{gathered}

The number of dimes they should donate to keep the ratio of total nickels to total dimes the same is 39.

8 0
2 years ago
help me pleasee, lol. this question is probably so simple to answer but i don’t know what its really asking for. thank you so mu
Natalka [10]

Answer:

1 inch does equal 2.54

Formula = multiply the length value by 2.54

The answer is 25.4 cm

Enjoy.

7 0
3 years ago
Which of the following expressions are equivalent? Why? If an expression has no match, write 2 equivalent
ANTONII [103]

Answer:

a and b are equivalent.

c, d and e are not equivalent.

So, 2 equivalent expression for c and are,

c.

( i ) 2 ( x + 2 )

( ii ) ( 4x + 8 ) / 2

d.

( i ) 3x + 16

( ii ) ( 6x + 32 ) / 2

Step-by-step explanation:

a.

2 ( x + 4 )

= 2 ( x ) + 2 ( 4 )

= 2x + 8

b.

8 + 2x can also be written as 2x + 8.

d.

3 ( x + 4 ) + ( 4 + x )

= 3 ( x ) + 3 ( 4 ) + 4 + x

= 3x + 12 + 4

= 3x + 16

8 0
2 years ago
Read 2 more answers
Change each improper fraction into an equal mixed number.
olchik [2.2K]

A.) 3 3/4

B.) 4 5/9

C.) 8. 375 - I couldn't solve this one

D.) 12 3/11

E.) 5 7/20

F.) 29


6 0
3 years ago
Other questions:
  • Write an equation of the line, in slope-intercept form, with a slope of 5 and a y-intercept of -3.
    9·1 answer
  • The Sad State Lottery requires you to select a sequence of four different numbers from 0 through 42. (Order is important.) You a
    7·1 answer
  • Point W is on line segment \overline{VX}VX. Given WX=2WX=2 and VX=17,VX=17, determine the length{VW}.VW.​
    13·1 answer
  • If 11 is added to a number, the result is 45 less than twice the number. Find the number
    8·2 answers
  • Help me find the area of this hexagon.
    9·1 answer
  • HELPPPPPP PLEASE nenndjdjxididnnd
    7·2 answers
  • Can y'all help me pls ​
    12·2 answers
  • Which figure can be formed from the net?
    12·1 answer
  • Solve for x: -4|x +5| =-16
    14·2 answers
  • Write an expression for the perimeter of the triangle below 1.8k - 5, 3.5 + 6.1k, k + 1.5
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!