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3 years ago

PLSSS HELPP FOR 150 POINTS NO JOKE CAN EVEN SEND U 50 MORE IF U HELP

Mathematics

1 answer:

Fudgin [204]3 years ago

6 0

Answer:

what the other dude said

Step-by-step explanation:

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The U.S. consumption of copper (in thousands of metric tons)is given approximately by

NARA [144]

Answer:a) 15,315

b) 1005

Step-by-step explanation: shown in the attachment

4 0

4 years ago

Use the model to solve for x.

Vitek1552 [10]

Answer:No solution
Explanation: There is no solution because x was eliminated in the last step of solving for x. Since we were left with x not being available to equal three, it shows it’s a no solution problem. Hope this helped!

4 0

3 years ago

Prove, using the second derivative, that the general quadratic y= ax^2+bx+c, is:

lozanna [386]

There are three things you have to know:

A function is convex when its second derivative $f''(x)>0$
A function is concave when it second derivative $f''(x)$
The derivative of a power, $x^n$ , is $nx^{n-1}$

So, the first derivative is

$y'=2ax+b$

and the second derivative is

$y''=2a$

This implies that the second derivative of a parabola is constant, and of course that 2 doesn't change the sign of $a$ .

3 0

3 years ago

In a right triangle, the ____________ of an angle can be found by dividing the length of the opposite leg by the length of the t

damaskus [11]

The correct answer for the completion exercise shown above is: sine.

Therefore, the complete text is shown below: "<span>In a right triangle, the sine of an angle can be found by dividing the length of the opposite leg by the length of the triangle's hypotenuse".
</span>
A right triangle is a triangle that has an angle of 90 degrees.

The sine is one of the most common trigonometric functions. Therefore, you have that the sine of an angle is:

Sin(α)=opposite/hypotenuse

3 0

3 years ago

Points R, S, and T are collinear, and S is between R and T. Find ST if RS = 6.4in and RT = 9.3 in.

babymother [125]

Answer:

Step-by-step explanation:

The layout looks like this.

r-----------s-----------------t

6.4

----------------9.3-----------

Now you want st so the formula is

rt = rs + st

9.3 = 6.4 + st Subtract 6.4 from both sides

9.3 - 6.4 = st Combine

st = 2.9

4 0

3 years ago