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2 years ago

Can some one help pls

Mathematics

1 answer:

Talja [164]2 years ago

6 0

Answer:

I don't see the link fix it or something

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Courtney needs blue and brown ribbon to use to make a bow for a dress. According to her pattern she needs 11.2 inches of brown r

Stells [14]

Answer: Expression used to find the total ribbon she used = x+11.2

Explanation:

Let the length of blue ribbon to use to make a bow for a dress be x

And

The length of brown ribbon is used to make a bow for a dress = 11.2 inches

Expression need to find the total ribbon she used will be sum of blue and brown ribbon altogether

i.e. x+11.2 inches

So, the required expression will be x+11.2 inches

5 0

3 years ago

Consider the two functions. Which statement is true?

Luden [163]

Answer:

I'm not for sure but I think it's a

8 0

2 years ago

A cheetah runs 108 meters in 4 seconds. How far can the cheetah run in 9 seconds?

Lesechka [4]

I believe the answer is 243

5 0

3 years ago

Read 2 more answers

taurus [48]

Answer:

$x^2 - 2x + 10$ , option B

Step-by-step explanation:

Complex numbers:

The most important relation that involves complex numbers is given by:

$i^2 = -1$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

The solutions are:

$x_1 = 1 - 3i, x_2 = 1 + 3i$

We have to find the polynomial. All option have $a = 1$ . So

$(x - (1 - 3i))(x - (1 + 3i)) = x^2 - x(1 + 3i) - x(1 - 3i) + (1 - 3i)(1 + 3i) = x^2 - x -3ix - x + 3ix + 1^2 - (3i^2) = x^2 - 2x + 1 - 9i^2 = x^2 - 2x + 1 - 9(-1) = x^2 - 2x + 10$

The correct answer is given by option b.

6 0

3 years ago

Use synthetic division to solve (x^3+1)/(x-1). What is the quotient?

Sav [38]

Answer:

x^2 +x +1

Step-by-step explanation:

See below for the tableau. The quotient is x^2 +x +1.

___

The remainder is 2.

7 0

3 years ago