3 years ago

What is [ 4 × ( 4 + 3 ) ] − 3

Mathematics

1 answer:

Mice21 [21]3 years ago

6 0

Answer:

Step-by-step explanation:

4+3=7,

4*7=28

28-3=25

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weeeeeb [17]

Answer:

-3/2

Step-by-step explanation:

go up 3 and left 2

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3 years ago

Select the two values of x that are roots of this equation. 2x2 + 7x + 6 = 0

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Answer:

x = -3/2, -2

Step-by-step explanation:

2x^2 + 7x + 6 = 0

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2 years ago

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Svetach [21]

S’(12,-20) T’(0,-8) U’(-12,-20)

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3 years ago

What is the sum of the interior angles of the polygon shown below?

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900

Step-by-step explanation:

Sum of interior angle for a polygon = (n-2)180

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4 years ago

Find ????⋅ ???? if |????|=3 , |????|=9 , and the angle between ???? and ???? is π2 radians.

mrs_skeptik [129]

Answer:

$a{\cdot}b=0$

Step-by-step explanation:

It is given that,

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Dot product,

$a{\cdot} b=|a||b|\ \cos\theta\\\\a{\cdot} b=3\times 9\times \ \cos(90)\\\\a{\cdot} b=0$

So, a.b is equal to 0.

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3 years ago