Help fast!!!

the first term of an arithmetic sequence is 17 and the 60th term is 194 and the 65 term is 209. the sum of the first 60 terms is 6330. What is the sum of the 20th and 30th terms?

first is brainliest!!!

Answer:

1). The average speed is 17 mps (m per second). I know this because if you divide 34 m by 2, (in order to get the m per second) you will get 17 mps. Thats how i got my answer.

2). It would take 2.5 hours to travel 130km. I know this by dividing 139 by 52. I chose to do this because if you travel 52km/h, then dividing 130km by 52 will give you an answer

Answer:

t = 2

Step-by-step explanation:

Answer:

x=5

Step-by-step explanation:

Answer:

C) 5

Step-by-step explanation:

2^3=3x-7

2*2*2=3x-7

8=3x-7

3x=8+7

3x=15

x=15/3

x=5

Answer:

1. ae=bd; cd=ce (given) 2. ae=ac+ce (segment addition postulate) 3. bd=ac+cd (substitution property of equality) 4. ac+cd=bd (symmetric property of equality) 5. bd=bc+cd (segment addition postulate) 6. ac+cd=bc+cd (transitive property of equality) 7. ac=bc (subtraction property of equality)

i think

Step-by-step explanation:

Answer:

9(v-8)

[line]

v+6

Step-by-step explanation:

Answer:

we can tell if line ac is straight

Step-by-step explanation:

Answer:

12 that's what I think the answer is

Answer:

3 and 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

15y = 45x + 60 ( divide all 3 terms by 15 )

y = 3x + 4 ← in slope- intercept form

with slope m = 3

Given

6y = 12x + 36 ( divide all 3 terms by 6 )

y = 2x + 6 ← in slope- intercept form

with slope m = 2

Answer:

[tex]x = 40 [/tex]

Step-by-step explanation:

[tex]x + x + 100 = 180 \\ 2x = 80 \\ x = 40 [/tex]

Answer:

$3.60 per pound

Step-by-step explanation:

you can set up a proportion:  $ / lbs = $ / lb

let 'x' = cost of 1 pound of chicken:

9 / 2.5 = x / 1

cross-multiply:

2.5x = 9

x = 9/2.5

x = 3.6

Answer:

289.38 m^2

Step-by-step explanation:

(9.6)^2 x 3.14 = 289.38 m^2

The area of the circle is [tex]289.38\ m^2[/tex]

Since the  radius of 9.6 meters and we use 3.14 for π

We know that

The area of the circle is

[tex]= \pi r^2\\\\= 3.14\times (9.6)^2\\\\= 289.38\ m^2[/tex]

We simply applied the given formula so that the area of the circle could come

Therefore we can conclude that The area of the circle is [tex]289.38\ m^2[/tex]

learn more about an area here: https://brainly.com/question/24364874

Answer:

-9 is the correct answer

Answer:

the slope is 9/10 and the y-intercept is (0,3) I hope it helps

Answer:

i cant see the question

Step-by-step explanation:

Answer:

3 2/5

Step-by-step explanation:

Answer:

Dion ran 105 kilometers in 28 days.

Step-by-step explanation:

3.75*28= 105

Dion ran 105 kilometers in 28 days.

Answer:

105 Kilometers

Step-by-step explanation:

3.75 times 28 equals 105.

Answer:

x²-4x+7

-x²-6x-12

Step-by-step explanation:

1.) the first thing we do is expand the exponent (or mulitply  (x-2)(x-2) the images below will show you how to do that

We get x²-4x+4 and then just need to add three

x²-4x+7

2.)

We do the same thing (expand the exponent) and get x²+6x+9

which means so far we have

-(x²+6x+9)-3

carry out the negative sign and subtract 3

-x²-6x-12

Answer:

Error....

.

.

.

.

.

At least 2 equation needed for the solution of two variables

Answer:

B

Step-by-step explanation:

Slope is rise/run, so the fraction would be more likely to be the correct answer.

Step-by-step explanation:

[tex]given \\ = 5 \times \frac{7}{2} \\ = \frac{35}{2} [/tex]

Hope it will help :)

Answer:

R'T = 28

Step-by-step explanation:

Dilation is one of the methods used in transformation. It is a process in which the size of a given object or shape is either increased or decreased by a scale factor.

In the given question, the length of RT was increased by the scale factor, so that;

R'T = RT x scale factor

      = 8 x 3.5

      = 28

R'T = 28

Therefore, the length of R'T is equal to 28.

Answer:

i dont

Step-by-step explanation:

Answer:

No one has..........lol

Answer:

It is its tenth value

Step-by-step explanation:

The 4 in .487 is the tenths value

Answer:

12

Step-by-step explanation:

19.50-4.50=15

15÷1.25=12

Answer:

3/8 or

2.67 or

2 67/100

Step-by-step explanation:

2.671×100100=267100

8 divide by 3. Take that and convert to fraction or decimal either or.

Answer:

150 ≥ 55+0.20t

Given:

The figure of triangle ABC.

To find:

The measure of angle A.

Solution:

From the given figure, we get

[tex]\angle ABC+120^\circ=180^\circ[/tex]                 (Linear pair)

[tex]\angle ABC=180^\circ-120^\circ[/tex]

[tex]\angle ABC=60^\circ[/tex]

According to the exterior angle theorem, the exterior angle of a triangle is equal to the sum of two opposite interior angles.

[tex]\angle A+\angle ABC=105^\circ[/tex]          (Exterior angle theorem)

[tex]\angle A+60^\circ=105^\circ[/tex]

[tex]\angle A=105^\circ-60^\circ[/tex]

[tex]\angle A=45^\circ[/tex]

Therefore, the measure of angle A is 45 degrees.

Step-by-step explanation:

9x+4=15

9x=15-4

9x=11

x=11/9 or 1 2/9

Answer:

Move all terms that don't contain

x

to the right side and solve.

Exact Form:

x=119

Decimal Form:

x=1.¯2

Mixed Number Form:

x=1 2/9

Hope it is helpful....

Answer: 10 and 3

Step-by-step explanation:

A coefficient is a number placed before a variable so its 10 and 3 in this expression.