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2 years ago

Which equation is true?

Mathematics

1 answer:

Dmitry_Shevchenko [17]2 years ago

3 0

Answer:

I think it is the first one.

Step-by-step explanation:

I think that becuase it is equal.

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How can we solve this need answer pls

adoni [48]

Answer:

(-5, -3)

Step-by-step explanation:

Scale factor 1/2 means divide points by 2

3 0

2 years ago

Given the rectangles perimeter, find the unknown side lengths.

Dominik [7]

The perimeter is just adding all the sides together.

a.) 180 = 40 + 40 + x + x

180 = 80 + 2x Subtract 80 on both sides

100 = 2x Take 1/2 of 100 to get x

x= 50cm

b.) 1000 = 150 + 150 + x + x

1000 = 300 + 2x Subtract 300 on both sides

700 = 2x Take 1/2 of 700 to get x

x = 350

3 0

2 years ago

What is (f+g)(x)? f(x)=x^2-36 g(x)=x^3+2x^2-10

docker41 [41]

Answer:

x³ + 3x² - 46

Step-by-step explanation:

note that (f + g)(x) = f(x) + g(x)

f(x) + g(x)

= x² - 36 + x³ + 2x² - 10 ← collect like terms

= x³ + 3x² - 46

6 0

2 years ago

Algebra p[lease help

Iteru [2.4K]

Answer:

y = x^2 +6x +8

Step-by-step explanation:

The vertex is (-3, -1), and the vertical scale factor is 1. (You can tell this because the graph goes up 1 unit for 1 unit either side of the vertex.) So, the vertex form of the equation is ...

y = (x +3)^2 -1 . . . . . . . . . vertex form; sometimes called standard form

Expanding this, we get ...

y = x^2 +6x +8 . . . . . . . . also called the standard form equation

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<em>Comment on standard form</em>

There are different versions of "standard form" depending on what you're concerned with and where you are. Please consult your text or other reference material for the version of standard form you need. (The attachments show the conflict with respect to quadratic equations.)

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<em>Comment on the graph</em>

The purpose of the graph attached is to show that the equation we propose produces the same curve as the one given.