what is the sum of the first 14 terms of an arithmetic sequence if the 5th term is 31 and the 9th term is 59?​

Answer:

m (slope) = 1/2

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

When we subtract a negative number, it's basically a double negative, kind of like how we don't use those in English. We want to turn that into a positive, and double negatives are positive.

So, instead of 7-(-3), we get 7+3, or 10

Answer:

10

Step-by-step explanation:

[remember: (+)(+) is (+) itself , (+)(-) is (-) , (-)(-) is (+) ]

(+7)-(-3)

⇒ +7+3

⇒ 10

hope you understood❤

Answer:

$113.1

Step-by-step explanation:

Well you add the 30% + the 87 bucks. Hope it helps friend! Please mark the brainliest. C:

Answer:6.66

Step-by-step explanation:

Answer: 1) D    2) B, A     3) A

Step-by-step explanation:

Domain is the x-values

Range is the y-values

Graph is a function if no x-values are duplicated

1) option D

  (3, 7), (1, 0), (8, 1), (-4, -3), (2, 7)

   ↓       ↓       ↓        ↓          ↓

Domain: x = {1, 1, 8, -4, 2}   → No duplicates so it is a function.

  (3, 7), (1, 0), (8, 1), (-4, -3), (2, 7)

       ↓       ↓       ↓          ↓        ↓

Range: y = {7, 0, 1, -3}    7 is a duplicate so only needs to be listed once

2) Domain = option B, Range = option A

x-values are between -5 (included = bracket) and +5 (not included = parentheses)

y-values are between -5 (included = bracket) and +5 (included = bracket)

3) option A

Domain: x = {1, 4, 5, 7, 9}   → 4 matches to both 5 and 7 so is NOT a function

Range: y = {3, 5, 7, 8}

Answer:

40

Step-by-step explanation:

50 x (4/5) = 50 x 4 =200/5=40

Answer:

aba mag solve kayo mag puro tanong samin

Answer:

y= -2x-2

Step-by-step explanation:

All parallel lines have the same slope. So, the line we create must have a slope of -2. If we multiply the x value by -2, we can find b through an equation.

-4 would be x in this case because it's a point we pass.

So, our equation would be

y= -2(-4)+b

y=8+b

Now, we know that y is 8+b. We can find b by plugging in y=6, because those are the coordinates of P.

6=8+b

b=-2

Now we know that b is -2. We put this into the equation for the parallel line and get:

y=-2x-2

Answer:

4 - 2 ^ 4

4 - (2)^4

-12

Step-by-step explanation:

Answer:

y=150x+200

Step-by-step explanation:

Given that:

Week : ____ 0___ 1 ___ 2 ____3 _____4

Balance : __200_350 _ 500 _ 650 ___800

Amount had in savings account = $200 before starting the job

x = number of weeks spent working

y = account balance

Slope intercept formula :

y = mx + c

C = intercept ; value of y when x = 0 = 200

m = slope or gradient = change in salary per month (350 - 200 = 500 - 350 = 650 - 500 = 800 - 650 = 150

Hence,

y = 150x + 200

Answer:

D...

Step-by-step explanation:

Feeling Lucky..

Answer:

true

Step-by-step explanation:

you have a square 0 is always first

Answer:

true

Step-by-step explanation:

:)

Answer:

7(3x-2)=133

x=7

Step-by-step explanation:

distribute the 7 which gives you 21x-14=133

the add 14 to both side making it 21x=147

finally divide 21 to both sides giving you x=7

Answer: just plug these into a calculator to find the simplified answers

Answer:

x=4

Step-by-step explanation:

Add six to both sides

x/4=1

Multiply by 4 on both sides

x=4

Regroup.

x/4 - 6 = -5

Add 6 to both sides

x/4 = -5 + 6

Simplify

x/4 = 1

Solve for x

x = 1×4

x = 4

Answer:

Step-by-step explanation:

A

Answer:

a=10

Step-by-step explanation:

Answer:

a=10 i just was confirming the other dudes answer and showing steps:)

Step-by-step explanation:

7.4a=3.2a+42

4.2a=42

a=10

Answer: AAS. Some people use SAA.

Step-by-step explanation: LM congruent to JK using given. <MLJ congruent to <JKM using given...The last one is using VAT(I can’t find the angle there. Hope this helps!

Answer:

its basically -4 divided by 2 which is 2

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

The given equation is linear with two variables that will have zero solutions.

A system of equations, also known as an equation system or a set of simultaneous equations, is a finite set of equations for which common solutions are sought.

Given equation is x + 2y = 8. The equation is a linear equation with two variables. If the equation will have another equation then the solution will have two values for two variables.

If there is only one equation with two variables we will not get any solution we need one more same equation. The equation will have zero solution.

Therefore, the given equation is linear with two variables that will have zero solutions.

To know more about a system of equations follow

https://brainly.com/question/25976025

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Answer:

15 unites

Step-by-step explanation:

Given:

perimeter = 30 units

scale factor = 0.5

30 units * 0.50 = 15 units

The perimeter of the resulting triangle is 15 units.

The perimeter of the dilated triangle will be, 15 units.

Dilation means changing the size of an object without changing its shape.

Given that, The perimeter of a triangle is 30 units. If it is dilated with respect to origin by a scale factor of 0.5, we need to find the perimeter of the resulting triangle,

Since, the triangle is with respect to origin by a scale factor of 0.5,

Therefore, the perimeter of the original triangle will be reduced by 0.5 units,

The perimeter of dilated triangle = 30 x 0.5 = 15

Hence, the perimeter of the dilated triangle will be, 15 units.

For more references on dilation, click;

https://brainly.com/question/13176891

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Answer:

Step-by-step explanation:

espera y termino y te ayudo vale que me falta poco

Answer:

12

Step-by-step explanation:

hope this helps :)

Answer:

-2q+5, choice a

Step-by-step explanation:

Answer:

Negative sets.

Step-by-step explanation:

Answer:

5x(7y + 5)

Step-by-step explanation:

Find the greatest common factor of 35xy and 25x and pull it in front of the parenthesis.