Find an equation for the nth term of the arithmetic sequence. a18 = 97, a20 = 281

2. The roots of a polynomial are where the graph crosses the x-axis. Find each of the following polynomials' roots and find the

Shalnov [3]

The factorization of A is y = (x - 8)(x + 7).
The factorization of B is y = (x + 1)(x - 4)(x - 5)

In order to find these, you must first find where each graph crosses the x-axis. In the first problem it does so at 8 and -7. In order to find the correct parenthesis for those, you need to write it out as a statement and then solve for 0.

x = 8 ---> subtract 8 from both sides
x - 8 = 0
This means we use (x - 8) in our factorization.

You then need to repeat the process until you have all the pieces. In the second problem, there will be 3 instead of 2 since it crosses the axis 3 times.

8 0

4 years ago

Each of the 4 family members uses 175 or fewer minutes of their combined family cell phone plan. At the end of the month, the fa

miskamm [114]

Answer:

The family might share maximum of 700 mins each month.

Step-by-step explanation:

Given:

Total number of minutes used by each member = 175

Number of members in family = 4

We need to find the number of minute family will share each month.

Solution:

Let the number of minute family will share each month be 'x'.

So we know that;

Total number of minute family will share each month should be less than or equal to Total number of minutes used by each member multiplied by Number of members in family

framing in equation form we get;

$x\leq 175\times4\\\\x\leq 700 \ mins$

Hence The family might share maximum of 700 mins each month.

5 0

4 years ago

If a(5,3),b(0,0) and c(-3,5) are the vertices of a triangle then the value of AB.BC is

statuscvo [17]

The dot product associated to sides AB and BC is 0.

<h3>What is the dot product generated by two sides of a triangle?</h3>

In this question we must find the dot product of two vectors associated with two surrounding sides of a triangle. First, we need to find the vectors associated to sides AB and BC:

Side BA

BA = (5, 3) - (0, 0)

BA = (5, 3)

Side BC

BC = (- 3, 5) - (0, 0)

BC = (- 3, 5)

By definition of dot product, the result associated to the two sides of the triangle is:

BA • BC = (5, 3) • (- 3, 5)

BA • BC = (5) · (- 3) + (3) · (5)

BA • BC = - 15 + 15

BA • BC = 0

The dot product associated to sides AB and BC is 0.

<h3>Remark</h3>

The statement is poorly formatted, the correct form is shown below:

If A(x, y) = (5, 3), B(x, y) = (0, 0) and C(x, y) = (- 3, 5) are the vertices of a triangle then the value of the dot product between vectors AB and BC is:

To learn more on dot product: brainly.com/question/14455586

#SPJ1

8 0

2 years ago

Please help meeehhh!! If u do u get brianleist!! :)) :DDD

irga5000 [103]

Answer:

7/11

Step-by-step explanation:

A unit fraction is any fraction with 1 as its numerator (top number)

so the only one thats not a unit fraction is 7/11

7 0

3 years ago

Read 2 more answers

Please Help Quickly!!! I really need this! 50 points!

denis-greek [22]

Answer:

wow this is confusing

Step-by-step explanation:

5 0

3 years ago