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Lana71 [14]
3 years ago
13

Tell me weather the sequence is arithmetic. If it is, what is the common difference 2,7,13,20...

Mathematics
1 answer:
dusya [7]3 years ago
3 0

No it is not. It increases by 1 more each time.

So it is an increase of 5, then an increase of 6, then an increase of 7. This means it is not arithmetic.

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Which of the following is a point-slope equation of a line with the point (-6,2)
joja [24]

Answer:

Choose (D)

y-y1=m(x-x1)

y-2=1/2(x+6)

4 0
3 years ago
A circle has a diameter of
nignag [31]

Answer:

Circumference = 50.24 units

Area = 200.96 units²

Determining the area of the circle:

The formula of finding the area of the circle is π(r)² or π(d/2)².

(Where "r" represents the radius and "d" represents the diameter)

In this case, we are given the diameter. Thus, we will use the formula π(d/2)². Simply substitute the diameter in the formula to determine the area of the circle.

⇒ π(D/2)² = Area of circle

⇒ π(16/2)² = Area of circle

⇒ π(8)² = Area of circle

⇒ π × 64 = Area of circle

[Exact form of pie: 22/7; Approx form of pie: 3.14]

⇒ Area of circle ≈ 3.14 × 64

⇒ Area of circle ≈ 200.96 units²

Determining the circumference of the circle:

The formula of finding the circumference of a circle is 2πr or πd.

(Where "r" is radius and "d" is diameter)

In this case, we are given the diameter. Thus, we will use the formula πd. Simply substitute the diameter in the formula to determine the circumference of the circle.

⇒ πd = Circumference of circle

⇒ π(16) = Circumference of circle

[Exact form of pie: 22/7; Approx form of pie: 3.14]

⇒ (3.14)(16) ≈ Circumference of circle

⇒ 50.24 units ≈ Circumference of circle

4 0
2 years ago
Usha had a balance of -$84. She worked for 6 days and put half the money in the bank. Now she has a balance of -$45. How much do
Darina [25.2K]

Answer:

$13

Step-by-step explanation:

First, find how much she put into the bank:

84 - 45 = $39

Then, multiply this by 2 to find how much she made, because this was half of the money she got:

39(2) = 78

Then, divide this by 6 to find how much she makes a day:

78/6 = 13

= $13

8 0
3 years ago
(question in a picture below)
Strike441 [17]

Answer:

-20 - (-20) = 0

Step-by-step explanation:

Since the problem starts with a negative number, you need to find out how many units from 0 it is. Since it is 20 units away from 0 in the negative direction, you need to add 20 in the positive direction to make it 0. Subtracting a negative number makes it positive. 2 negatives make a positive, so the problem is stated (rearranged) : 20 - 20 = 0.

8 0
2 years ago
Read 2 more answers
P(x) = -5x2 - 10x - 2<br> (Graphing quadratic functions in the form f(c) =ax^2 + bc + c)
asambeis [7]

Answer:

p=

−5x2−10x−2

x

Step-by-step explanation:

px=−5x2−10x−2

Step 1: Divide both sides by x.

px

x

=

−5x2−10x−2

x

p=

−5x2−10x−2

x

7 0
2 years ago
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