Evaluate -3- (-4) - (-2) + 1.

Mathematics

1 answer:

Shtirlitz [24]2 years ago

8 0

Answer:

Step-by-step explanation:

-3+4+2+1=4

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Rewrite the subtraction as addition 3- (-10)

Bumek [7]

<span>Rewrite the subtraction as addition 3- (-10)

= 3 + 10</span>

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2 years ago

Rewrite each equation in vertex form by completing the square. Then identify the vertex.

Cerrena [4.2K]

ANSWER

Vertex form:

$y = ( {x + 4)}^{2} - 11$

Vertex

V(-4,-11)

EXPLANATION

The given expression is

$y = {x}^{2} + 8x + 5$

We complete the square to get the vertex form.

Add and subtract half the square of the coefficient of x.

$y = {x}^{2} + 8x + 16 + 5 - 16$

$y = ( {x + 4)}^{2} - 11$

The vertex is

V(-4,-11)

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2 years ago

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Which value of x does not satisfy the equation sin^2x + sin x = 0

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Answer:

$x \neq 0 \pm \pi \cdot i, \forall i \in \mathbb{N}_{O}$ and $x \neq \frac{3\pi}{2}\pm 2\pi \cdot j, \forall j \in \mathbb{N}_{O}$ .