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2 years ago

What is the common difference between successive terms in the sequence?

Mathematics

1 answer:

kozerog [31]2 years ago

5 0

The sequence you add 6 each time so I say 6

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3. 4 more than the difference of x and 7.

Ainat [17]

Answer:

y = (x - 7) + 4

Step-by-step explanation:

4 more = + 4

difference = (-)

y = (x - 7) + 4

6 0

3 years ago

A square table has a perimeter of 20 feet. What is its area?

RSB [31]

Answer:

25 feet squared :)

Step-by-step explanation:

20/4 = 5

5^2 = 25

5 0

2 years ago

Use the discriminant to find the number and type of solution for x^2+6x=-9

likoan [24]

Answer:

D = 0; one real root

Step-by-step explanation:

Discriminant Formula:

$\displaystyle \large{D = {b}^{2} - 4ac}$

First, arrange the expression or equation in ax^2+bx+c = 0.

$\displaystyle \large{ {x}^{2} + 6x = - 9}$

Add both sides by 9.

$\displaystyle \large{ {x}^{2} + 6x + 9 = - 9 + 9} \\ \displaystyle \large{ {x}^{2} + 6x + 9 = 0}$

Compare the coefficients so we can substitute in the formula.

$\displaystyle \large{a {x}^{2} + bx + c = {x}^{2} + 6x + 9 }$

a = 1
b = 6
c = 9

Substitute a = 1, b = 6 and c = 9 in the formula.

$\displaystyle \large{D = {6}^{2} - 4(1)(9)} \\ \displaystyle \large{D = 36 - 36} \\ \displaystyle \large{D = 0}$

Since D = 0, the type of solution is one real root.

6 0

2 years ago

What is the value of this expression?

Zepler [3.9K]

Answer:

-3

Step-by-step explanation:

Step 1: Solve (-2+(-1))^2/3 3

1. -2+(-1) = -3

2. (-3)^2 = 9

3. 9/3 = 3

Step 2: Solve (-4)^2-17 -1

1. 3/-1

Step 3: Simplify 3/-1 = -3. I hope this helped and please don't hesitate to reach out with more questions!

5 0

3 years ago

Urgent!! Help math!!

mylen [45]

10,11,15 is not right triangle

30,40,50 is right triangle

9,13,16 is not right angel

16,30,34 is right triangle

4 0

3 years ago