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2 years ago

20 POINTS!!! HELP PLEASE!!!!!

Mathematics

2 answers:

Pie2 years ago

6 0

Answer:

Step-by-step explanation:

I don't know what the first graph is for. It obviously isn't the graph of g(x).

In the second graph, f(x) and g(x) intersect when x=4

Svetach [21]2 years ago

4 0

Answer:

Step-by-step explanation:

the points for g is -4,0 and x is 4,2 so... yea 2

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(4,-6) (3,-2) what is the slope

Olin [163]

Answer:

M = -4

Step-by-step explanation:

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2 years ago

What is the area of "triangle " XYZ to the nearest tenth of a square inch? Use special right triangles to help find the height.

igomit [66]

Answer:

That is a 30 60 90 triangle.

In such a triangle the "middle" size = short side * sq root (3)

height = 5 * sq root (3) = 8.6602540378

Area = (1/2) * 5 * 8.6602540378

Area = 2.5 * 8.6602540378

Area = 21.6506350946 square centimeters

Step-by-step explanation:

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3 years ago

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What is the value of StartFraction 6 Over x EndFraction + 2x2, when x = 3?

Shalnov [3]

<h2>The value of StartFraction 6 Over x EndFraction + 2x2, when x = 3 is 20.</h2>

Explanation:

The given expression is $\frac{6}{x}+2x^2\\$

When x = 3, the expression becomes $\frac{6}{3}+2(3)^2$

$2+2\times9$

= 2 + 18 = 20

4 0

3 years ago

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A ball is shot upward from a slingshot at a velocity of 15 m/s the height of the ball after t seconds is given by h(t)=10+ 5t+1/

otez555 [7]

Answer:

The instantaneous velocity after eight seconds is 9 m/s

Step-by-step explanation:

Given as :

The ball shot upward with velocity of 15 m/s

The height of the ball after t sec is given as h(t) = $10 + 5t + \frac{1}{4}t^{2}$

Now, The instantaneous velocity after 8 sec = $\frac{\partial h(t)}{\partial t}$

Or, The instantaneous velocity = $\frac{\partial (10 +5t + \frac{1}{4}t^{2})}{\partial t}$

or, The instantaneous velocity = $5 + \frac{1}{4}\times 2 t$

Now at t = 8 sec

The instantaneous velocity = 5 + 4 = 9 m/s

Hence The instantaneous velocity of ball at t = 8 sec , is 9 m/s Answer

3 0

3 years ago

Does the function f(x) = 2x^2− 6x + 9 have a minimum or a maximum? Identify its value.

exis [7]

Answer:

minimum value of function is $\frac{45}{8}$ .

Step-by-step explanation:

Given function represents a parabola.

Now, here coefficient of $x^{2}$ is positive , so the parabola will be facing upwards and thus the function will be having a minimum.

Now, as we know that minimum value of a parabolic function occurs at

x = $\frac{-b}{4a}$ .

Where , b represents the coefficient of x and a represents the coefficient of $x^{2}$ .

here, a = 2 , b = -6

Thus $\frac{-b}{4a}$ = $\frac{6}{8}$

= $\frac{3}{4}$

So, at x = $\frac{3}{4}$ minimum value will occur and which equals

y = 2× $\frac{9}{16}$ - $\frac{18}{4}$ + 9 = $\frac{45}{8}$ .

Thus , minimum value of function is $\frac{45}{8}$ .

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2 years ago