3 years ago

Add the following polynomials (2x + 5) + (-1x -4) Answer options: 3x + 9, 3x + 1, 1x + 1, 1x + 9

Mathematics

1 answer:

Leni [432]3 years ago

3 0

Answer:

1x+1

Step-by-step explanation:

just open the parentheses

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Answer:

C.8/27

Step-by-step explanation:

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2 years ago

Hey pls help worth 30 points

GrogVix [38]

Step 1: Find the slope:

$m = \dfrac{y_2-y_1}{x_2-x_1} = \dfrac{10-6}{6-5} = \dfrac{4}{1} = 4$

Step 2: Set up your equation $y-y_1=m(x-x_1)$ using one of the points.

Using (5,6) we have $y-6 = 4(x-5)$ .

Using (6,10) we have $y-10 = 4(x-6)$

Both of those equations would be correct.

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3 years ago

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In the function y=4x^2-5, what effect does the number -5 have on the graph, as compared to the graph of y=x^2

kati45 [8]

It moves the graph 5 steps downwards on the y axis.

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3 years ago

Suppose the linear regression line y=2.1x+130 predicts sales based on the money spent on advertising. If x represents the dollar

slega [8]

Linear regression line y=2.1x+130 predicts sales based on the money spent on advertising.

Linear regression represents the relationship between two variables. the value of y depends on the value of x.

x represents the dollars spent in advertising and y represents the company sales in dollars.

We need to find out sales y when $150 spends on advertising.

Plug in 150 for x and find out y

y = 2.1 x + 130

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3 years ago

Please help me with this please actually help me please and thank you

Westkost [7]

Answer:

C. (x, y) → (x, -y)

Step-by-step explanation:

The algebraic representation that correctly describes a reflection over the x-axis is (x, y) → (x, -y)

Here's an example to show understanding

Plot A is (4,6) and the reflection over the x-axis would be (4,-6)

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1 year ago