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3 years ago

Evaluate: 2-4 = help please

Mathematics

2 answers:

Akimi4 [234]3 years ago

3 0

Answer:

-2

Step-by-step explanation:

Snezhnost [94]3 years ago

3 0

Answer:

-2 I'm pretty sure since you subtract 2 from four.

Step-by-step explanation:

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A polygon is composed of two or more line segments?

Rama09 [41]

The smallest polygon has three line segments, it is triangle.

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3 years ago

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Which is one of the transformations applied to the graph of f(x) = x2 to change it into the graph of g(x) = –3x2 – 36x – 60?

FromTheMoon [43]

Hey There!! ☄️ The general vertex to The general vertex form is this:

v(x) = a (x-h)2 + k

where (h,k) is the coordinates of the of vertex.

and a indicates the widening or shrinking of the function compared to another parabolic function. If a become bigger, the graph becomes narrower. If a becomes negative, the graph is reflected over the x-axis.

Comparing f(x) = x2 with g(x) = -3(x+6)2 + 48, we have the following transformations:

The graph is reflected over the x-axis

The graph is made narrower.

The graph is shifted 6 units to the left.

The graph is shifted 48 units up.

From the choices we only have:

The graph of f(x) = x2 is made narrower

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3 years ago

Let f(x)=-3x-7 Abe g(x)=4x-5 find (f•g)(-3)

LiRa [457]

Answer:

272

Step-by-step explanation:

note that (f • g)(x) = f(x) × g(x) = (3x - 7)(4x - 5)

To evaluate substitute x = 3 into (3x - 7)(4x - 5)

(f • g)(- 3) = (- 9 - 7)(- 12 - 5) = - 16 × - 17 = 172

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3 years ago

How much coffee costing $4 a pound should be mixed with 3 pounds of coffee costing 4.50 a pound to obtain a mixture costing $4.3

Aleks04 [339]

Answer:

The quantity of coffee costing $4 a pound in the coffee mixture is 2 pounds.

Step-by-step explanation:

Given: Coffee costing $4 a pound is mixed with 3 pounds of coffee costing 4.50 a pound to obtain a mixture costing $4.30 a pound.

We have to find the quantity of coffee costing $4 a pound in the mixture.

Let x represent the number of pounds of $4 coffee.

Cost of one pound = 4x.

Cost of 3 pounds of coffee costing 4.50 a pound = 3(4.50)

Cost of mixture costing $4.30 a pound = (x+3)(4.30)

According to given problem,

$4x+3(4.50)=(x+3)4.30$

Solving for x, we get,

$\Rightarrow 4x+13.5=4.30x+12.9$

Rearranging like term together, we get,

$\Rightarrow 13.5-12.9=4.30x-4x$

$\Rightarrow 0.6=0.30x$

$\Rightarrow x=2$

Thus, the quantity of coffee costing $4 a pound in the coffee mixture is 2 pounds.

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3 years ago

Find the slope of the line?

Anton [14]

Step-by-step explanation:

Given line is passing through the points (0, 0) and (2, 1)

$\therefore \: slope \: (m) = \frac{1 - 0}{2 - 0} = \frac{1}{2} \\$

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3 years ago