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3 years ago

Problem referred below please help

Mathematics

1 answer:

zaharov [31]3 years ago

6 0

Answer:

Step-by-step explanation:

Perimeter = 2l + 2w

57x2 = 114

234 - 114 = 120

120 / 2 = 60

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The axis of symmetry for the graph of the function f(x)=3x2+bx+4 is x = 3. What is the value of b?

Kobotan [32]

Answer:

A)-18

Step-by-step explanation:

Given a quadratic equation of the form $y=ax^2+bx+c$ , the axis of symmetry is determined by the formula $x=-\frac{b}{2a}$ .

If the axis of symmetry of the equation: $f(x)=3x^2+bx+4$ is 3, then:

a=3, b=?, x=3

$x=-\frac{b}{2a}\\3=-\frac{b}{2*3}\\b=-6X3=-18$

The correct option is A.

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4 years ago

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GalinKa [24]

Answer:

Step-by-step explanation:

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3 years ago

What degree slope is a 16' ramp with a 35" rise

masha68 [24]

Answer:

10.5 Degree.

Step-by-step explanation:

The inclined length of the ramp is 16' i.e. 16 feet i.e. (16 × 12) = 192 inches.

And the rise of the ramp is 35" i.e. 35 inches.

We have to calculate the degree of slope from the above information.

If we consider the ramp as the hypotenuse of a right triangle, then the perpendicular height is 35 inches.

Then angle of slope is given by

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4 years ago

A train leaves a station and travels north at a speed of 105105 km/h. twotwo hours later, a second train leaves on a parallel

hram777 [196]

Let x = hours to meet

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4 years ago

Use Boolean algebra to simplify the given Boolean expression. Determine the minimum (i.e. simplest) expression. F(A, B, C) = A.B

klasskru [66]

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Step-by-step explanation:

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By complement law: C+C'=1, so

A.B(C+C')=A.B

Therefore the answer will be A.B'.C+A'.B.C+A.B

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3 years ago