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4 years ago

I need help w this question

Mathematics

1 answer:

ollegr [7]4 years ago

3 0

Answer:

360 degrees

Step-by-step explanation:

Remember that triangles have a sum of 180 degrees, and that quadrilaterals have 360 degrees.

You can either use that part, or actually solve for it.

The equation for the sum of the interior angles is:

$sum=180(n-2)$ [which "n" is the number of sides]

So, if we add in the number of sides to the equation, it changes to:

$180(4-2)=180(2)$ , which equals to 360 degrees.

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Solve 15 ≥ -3x or 2/5 x ≥ -2.

ipn [44]

Answer:

x ≥ -5

Step-by-step explanation:

15≥-3x

switch sides

-3x≤15

Multiply both sides by -1 (reverse the inequality)

(-3x)(-1)≥15(-1)

Simplify

3x≥-15

Divide both sides by 3

3x/3≥ -15/3

Simplify

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3 years ago

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2 years ago

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mr Goodwill [35]

Answer:

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Step-by-step explanation:

Given:

f(x) = x^2 + 10x + 7

Rewrite f(x) in vertex form

Solution:

f(x) = ax^2 + bx + c is a quadratic function.

The vertex form of f(x) is a(x - h)^2 + k, where (h, k) is the vertex.

=> f(x) = x^2 + 10x + 7

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= (x + 5)^ - 18

= (x - (-5))^2 + (-18)

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3 years ago

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mel-nik [20]

Given:

The given expression is

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To find:

The simplified form of given expression.

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$\dfrac{e\times e\times e\times f}{e\times e\times f\times f}$

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Cancel out the common factors.

$=\dfrac{e}{f}$

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