an= a +(n-1) (-2)



Find a10 for the sequence that follows the rule

Answers

Answer 1

Answer:

a10 = a-18

Step-by-step explanation:

a10 = a+(10-1)×(-2)a10 = a+9×(-2)a10 = a-18

HOPE THIS HELPS YOU.


Related Questions

In the diagram below, de is parallel to xy. What is the value of y?
194"
O A. 86
O B. 94
O C. 104
O D. 106

Answers

y=94 (B) because of angle rules

Help me before tomorrow.number 1

Answers

Answer:

how can i help you and when to help u and where to help you because i don't have much time say me fast what help do you need

Three consecutive even integers have a sum of 36. Find the integers.

Answers

first integer=x

second integer=x+1

third integer= x+2 (x + 1 + 1)

x + (x + 1) + (x + 2) = 36

Solve the inequalities.

1. u – 7 ≤ 2

2. q - 3 < 10

3. 2r ≤ 18

4. 3t > 96

Answers

Answer:

1.u<_9

2.q<13

3.r<_9

4.t>32

number divisible by 4​

Answers

Answer:

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108...

Step-by-step explanation:

Numbers go on forever. So there is an infinite amount of numbers that are evenly divisible by 4.

1.) There are f fish in an aquarium. One fourth of the fish are angelfish. How many are angelfish?

2.) The temperature is 62°F. It gets warmer by h degrees. What is the temperature now?

please help me ~•~

Answers

Answer

1. f - 3/4

2. 62 + h

Step-by-step explanation:

1. 1/4 of the fish are angelfish, all fish are one whole, one whole - 3/4's = 1/4

2. we dont have the value of H so we in turn have to figure out the equation and 62 + h is the only answer we can come to

The formula for the area of a traingle is 1/2 bh, where b is the length of base of the traingle and h is the vertical height. Use the formula to find the height of a traingle with a base length of 8 inches and an area of 39 square inches.​

Answers

Answer:

9.75 in

Step-by-step explanation:

A = (1/2)bh

Given:

A = 39 in²b = 8 in

Find h:

h = 2A/bh = 2*39/8 = 39/4 = 9.75 in

Step-by-step explanation:

We know that

Area of triangle = ½ × b × h

39 = ½ × 8 × h

39 = 4h

39/4 = h

9.75 = h

help me if u did u just saved my life :)
ありがとうございました

Answers

-y/3+x/5=1

y=3x/5-3

have a great day

Write a subtraction expression with a positive and negative integer whose difference is negative. Then find the difference

Answers

Answer:

-20-15=-35

Step-by-step explanation:

I think this answers your question, sorry if I'm wrong!

(2sinx+3cosx)²+(3sinx-2cosx)²=13 prove plz

Answers

Answer:

LHS:-

(4sin²x +9cos²x + 12sinxcosx) +(9sin²x+ 4 cos²x -12sinxcosx)

13 (sin²x + cos²x)

13*1 =

13RHS

HP

Answer:

see explanation

Step-by-step explanation:

Using the identity

sin²x + cos²x = 1

Consider left side

(2sinx + 3cosx)² + (3sinx - 2cosx)² ← expand parenthesis using FOIL

= 4sin²x + 12sinxcosx + 9cos²x + 9sin²x - 12sinxcosx + 4cos²x

Collect like terms

= 13sin²x + 13cos²x ← factor out 13 from each term

= 13(sin²x + cos²x)

= 13 × 1

= 13

= right side , thus proven

Enter numbers to write 13,000 in scientific notation.




13,000=1.3 ×
=1.3×10

Answers

Answer:

104 = 10,000 x 1.3 = 13,000

Step-by-step explanation:

step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 13,000

New Number: 1.3000

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 1 . 3 0 0 0

Decimal Count:   1 2 3 4

There are 4 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 1.3 (Please notice any zeroes on the end have been removed)

b = 4

Now the whole thing:

1.3 x 104

Step 4

Check your work:

104 = 10,000 x 1.3 = 13,000

Write two fractions that are equivalent to 5/20.

Answers

Answer:

[tex] \frac{5}{20} = \frac{1}{4} = \frac{10}{40} \\ thank \: you[/tex]

The circumference of a circle is B
inches. The radius of the same circle
is 4.5 inches. Which expression best
represents the value of it?

Answers

Answer:

C=2πr may be i am not sure

Answer:

The circumference of a circle is B

inches. The radius of the same circle

is 4.5 inches. Which expression best

represents the value of it?

c

Write 3.15 repeating as a mixed number in simplest form.

Answers

Since the greatest common factor of 312 and 99 is 3, we can simplify the fraction and show the same amount

312
99
=
312 ÷ 3
99 ÷ 3
=
104
33

Therefore, 104/33 is simplified fraction of 3.15 repeating. Since this is an improper fraction, converted to mixed number is:
104
33
= 3
5
33

I need some help on 9 and 10

Answers

Answer:

question 9

92/11 or 8.36

Step-by-step explanation:

angle on straight line is 180

:. 10x+1 + 12x-5 = 180

collect like terms

10x+12x = 180+5-1

22x = 184

divide both sides by the coefficient of x

22x/22 = 180/22

:. x = 180/22(to d lowest form= 92/11)

or 8.36

Simplify: 4b^5 + 10b^5

Answers

Answer:

14 b^5

Step-by-step explanation:

you can do all mathmatical operations to same variables with same power

On a police force, there are 60 more male officers than female officers. If the ratio of
male to female officers is 10:7, determine the number of male and female officers on
the force.

Answers

     We will solve this problem by solving the system of equations formed by the statements given in the question.

Number of male and female officers are 200 and 140 respectively.

Statements given in the question,

There are 60 more male officers than female officers.Ratio of male and female officers is 10 : 7.

Let the number of male officers in the police force = m

And the female officers in the police force = f

       "There are 60 male officers than female officers"

m = f + 60 ----- (1)

       "Ratio of male and female officers is 10 : 7"

Therefore, [tex]\frac{m}{f}=\frac{10}{7}[/tex]

[tex]m=\frac{10}{7}f[/tex] ------- (2)

   By substituting the value of 'm' from equation (2) to equation (1),

[tex]\frac{10}{7}f=f+60[/tex]

[tex]\frac{10}{7}f-f=60[/tex]

[tex]\frac{3}{7}f=60[/tex]

[tex]f=140[/tex]

   Substitute the value of 'f' in equation (1),

m = 140 + 60

m = 200

    Therefore, number of male and female officers are 200 and 140 respectively.

Learn more,

https://brainly.com/question/8260974

is π11 a real number?​

Answers

No it is not pie is an infinite number in its self 3.14 etc etc

PLease hellp meeeeeeeee

Answers

Answer:

I think it -2 then -7

The maths class has 9 girls and 14 boys. What is the ratio to boys to girls

Answers

It’s 14:9

It’s asked for boys first, so the amount of boys goes first

(Btw, If it asked for girls first, it would be 9:14)

Shelby's dad bought 0.98
pounds of bacon. What is
this decimal as a fraction,
in lowest terms.

Answers

Answer:

[tex]\frac{49}{50}[/tex]

Step-by-step explanation:

First, divide it by 100.

[tex]\frac{98}{100}[/tex]

Then, simplify. (They both can be divided by 2 since it is their GCF)

[tex]\frac{49}{50}[/tex]

Answer: [tex]\frac{49}{50}[/tex]

Write the mixed number of 6241/101

Answers

Answer:

[tex]60 \frac{152}{101} [/tex]

Answer:

61 80/101

Step-by-step explanation:

Divide 6241 and 101 which equals 61 R80

Two cars leave towns 760 kilometers apart at the same time and travel toward each other. One car's rate is 20 kilometers per hour less than the other's. If they meet in 4 hours, what is the rate of the slower car?

Answers

Answer:

Let speed of slower car be xkm/h

Therefore rate of other car=x+20 km/h

After 4 hrs ,

Distance covered by Car A=4x

Distance covered by Car B=4x+80

4x+4x+80=760km

8x=680

x=45

The rate of the slower car=45km/h

Mathematics adding and subtracting integers
PLEASE HELP ASAP
1 by 1 please

Answers

Answer:

ummmmmmmmm it's: 1+1=3

Answer:

- 5 and 12

Step-by-step explanation:

Using the rules

- (-) = + , + (-) = -

- 7 - (- 5) + (- 3)

= - 7 + 5 - 3

= - 2 - 3

= - 5

--------------------------------

9 - (- 7) + (- 4)

= 9 + 7 - 4

= 16 - 4

= 12

I need help with #61 to #64 ASAP please and thank you …. Could someone please help me with it… I need to get it done ASAP .. I need the answers for all of them ASAP

Answers

Problem 61

Refer to this link where I solved the problem earlier

https://brainly.com/question/24517029

===========================================================

Problem 62

T(n) = nth triangular number

T(n) = n(n+1)/2 = 0.5n(n+1)

That squares to (0.5n(n+1))^2 = 0.25n^2(n+1)^2

The next triangular number after T(n) is

T(n+1) = 0.5(n+1)(n+1+1) = 0.5(n+1)(n+2)

That squares to 0.25(n+1)^2(n+2)^2

Notice how each squared result has 0.25 and (n+1)^2 found buried in them.

Let's say A = 0.25(n+1)^2

That would mean the first result 0.25n^2(n+1)^2 becomes An^2

The second result 0.25(n+1)^2(n+2)^2 becomes A(n+2)^2

Let's add those to see what happens

An^2+A(n+2)^2

An^2+A(n^2+4n+4)

A(n^2+n^2+4n+4)

A(2n^2+4n+4)

0.25(n+1)^2*(2(n^2+2n+2))

0.5(n+1)^2(n^2+2n+1+1)

0.5(n+1)^2((n+1)^2+1)

0.5k(k+1)

We see that the result is a triangular number where k = (n+1)^2

This shows that adding the squares of consecutive triangular numbers gets us another triangular number.

A few examples

3^2+6^2 = 9+36 = 45 which is in the form n(n+1)/2 when n = 96^2+10^2 = 36+100 = 136 which is in the form n(n+1)/2 when n = 16Answer: Triangular number

===========================================================

Problem 63

I'll borrow some of the ideas from problem 62

We found that after squaring the nth and (n+1)th triangular numbers, we got An^2 and A(n+2)^2 respectively. We let A = 0.5(n+1)^2

Subtract those expressions to get...

A(n+2)^2 - An^2

A(n^2+4n+4)-An^2

A(n^2+4n+4-n^2)

A(4n+4)

4A(n+1)

4*0.5(n+1)^2*(n+1)

(n+1)^3

This proves that the difference between the squares of consecutive triangular numbers is a perfect cube, aka a cube number.

A few examples:

6^2 - 3^2 = 36 - 9 = 27 = 3^310^2 - 6^2 = 100-36 = 64 = 4^3Answer: Cube number

===========================================================

Problem 64

Refer to this link where I solved the problem earlier

https://brainly.com/question/24517029

Line XY intersects plane M and point O.

Answers

Answer:

x and y are coordinates and m is slope

How many repeating digits are in the smallest group of repeating digits in the decimal equivalent of 2/9?

Answers

Answer: 1

Step-by-step explanation:

Only one

[tex]\frac{2}{9} =0.\overline{2}\\[/tex]

Please help!! Will give 100 points

Answers

Answer:

x+2

Step-by-step explanation:

Answer:

The answer is x+2

Step-by-step explanation:

Example 1 Allison currently has a balance of $2,300 in her checking account. She deposits a $425.33 paycheck, a $20 rebate check, and a personal check for $550 into her checking account. She wants to receive $200 in cash. How much will she have in her account after the transaction? step by step ​

Answers

Answer:

$1955.33 left in her account

Step-by-step explanation:

2300+425.33-20-550=2155.33-200=

solve for x? i need this asap please

Answers

The Angles (3x - 3)° and 60° forms alternate interior Angle pair. hence,

(3x - 3)° = 60°

3x = 63°

x = 21°

Answer:

x = 21

Step-by-step explanation:

3x-3 = 60 (congruent angles)

3x = 60+3

x = 63/3

x = 21

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