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krok68 [10]
3 years ago
14

The first three terms of an arithmetic sequence are x-1, 3x-2 and 5x-3. Which of the following expressions represents the 15th t

erm in the arithmetic sequence
Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

29x-15

Step-by-step explanation:

fifteenth term=x-1+14(2x-1)

=x-1+28x-14

=29x-15

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Write the equation of the circle graphed below
Serjik [45]

<u>Given</u>:

Given that the circle is graphed with center (-1,1)

We need to determine the equation of the circle.

<u>Radius</u>:

To determine the radius of the circle, let us simply count the number of units between the center point to any point on the circle.

Hence, from the figure, it is obvious that there are 5 units between the center and any point on the circle.

Thus, radius of the circle is 5 units.

<u>Equation of the circle:</u>

The standard form for the equation of the circle is given by

(x-h)^{2}+(y-k)^{2}=r^{2}

where the center is (h,k) and radius is r.

Substituting the center (-1,1) and r = 5 in the above formula, we get;

(x+1)^{2}+(y-1)^{2}=5^{2}

(x+1)^{2}+(y-1)^{2}=25

Thus, the equation of the circle is (x+1)^{2}+(y-1)^{2}=25

7 0
3 years ago
PLZ PLZ HELP ME ILL MARK BRAINLIEST AND GET A FOLLOW BUT PLZ HELP ME ​
Nesterboy [21]

Answer:

  • See below

Step-by-step explanation:

<u>Initial coordinates and transformations:</u>

  • (x, y) → (4x, 4y) → (3x, 3y)
  • A(-1, -1) → A'(-4, -4) → A''(-3, -3)
  • B(1, 1) → B'(4, 4) → B''(3, 3)
  • C(2, 0) → C'(8, 0) → C''(6, 0)
6 0
3 years ago
Read 2 more answers
It takes 4 hours to go fly to Atlanta, a city that is about 200 miles. How many miles have I flown in in 2.5 miles
Irina-Kira [14]

Answer:

x = 125

Step-by-step explanation:

4 hrs : 200 mi

2.5 hrs : x mi

4/2.5 = 1.6 hrs

200/1.6 = 125 mi

x = 125 mi

5 0
3 years ago
Two students were asked to find the value of a $1000 item after 3 years. The item was depreciating (losing value) at a rate of 4
Yuki888 [10]

Answer:

<em>Student 2 is incorrect because he didn't use the formula properly</em>

Step-by-step explanation:

The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

C(t)=C_o\cdot(1-r)^t

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The initial value of the item is Co=$1000, the rate of decay is r=40%=0.4, and the time is t=3 years.

Substituting into the formula:

C(3)=\$1000\cdot(1-0.4)^3

C(3)=\$1000\cdot0.6^3

C(3)=$216

Student 2 is incorrect because he didn't use the formula properly

8 0
3 years ago
Which graph can be used to find the solution(s) to 4x=-4x?
Elden [556K]
<h2>Answer:</h2>

The graph is shown in the Figure below

<h2>Step-by-step explanation:</h2>

In this exercise, we have an equation. On the left side we have a straight line with slope m=4 and there is no any y-intercept. On the right side, on the other had, we also have a straight line, but the slope here is  m=-4. Therefore, by plotting these two straight lines, we have that the solution is the origin, that is, the point (0, 0).


6 0
3 years ago
Read 2 more answers
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