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2 years ago

11

a copy machine can reduce the size of the material being copied. A diagram measure 16 cm wide by 20 cm long is reduced if the di

agram on the reduced copy is 15 cm long what is its width

1 answer:

k0ka [10]2 years ago

5 0

Because of the radius of the cube the math answer has to be 4

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(tap the picture in order to see the hole thing) guys i really need help plz its so annoying that i cant answer it

vlabodo [156]

David's total income is ($8/hr)x + ($11/hr)y.

This problem requires us to write and solve an inequality:

8x + 11(15)<$200

Solving for x: 8x < $200-$165, or 8x < $35. Strictly speaking, x = 4.375 hrs, but if we assume that David must work an integer # of hours, then x=5 full hours.

6 0

3 years ago

What is 8 * 3/4 hour

Pachacha [2.7K]

78 * 3/4 hour,
it is 6 hours

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3 years ago

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Consider the function g:

Alja [10]

Another way to ask this question: where the x-value of function g equals 12, what's the y-value?

remember that function notation is like so: f(x), g(x), h(x)... so the number in the parentheses is an x-value from the function.

look through your points and find the one that represents an x-value of 12. (12, 19) is the point, and 19 is your output--so, g(12) = 19.

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3 years ago

What is the quadratic function f(x)=x^2+6x-2 In vertex form?

Yuliya22 [10]

Answer: Option D

$f(x)=(x+3)^2 -k$

Step-by-step explanation:

For a quadratic function of the form

$ax ^ 2 + bx + c$

The x coordinate of the vertice is:

$x =-\frac{b}{2a}$

In this case the function is:

$f(x)=x^2+6x-2\\\\$

So

$a=1\\b=6\\c=-2$

The x coordinate of the vertice is:

$x=-\frac{6}{2*1}\\\\x=-3$

The y coordinate of the vertice is:

$f(-3) = (-3)^2 +6(-3) -2\\\\f(-3)=-11$

The vertice is: (-3, -11)

The form e vertice for a quadratic equation is:

$f(x)=(x-h)^2 +k$

Where

the x coordinate of the vertice is h and the y coordinate of the vertice is k.

Then h=-3 and k =-11

Finally the equation $f(x)=x^2+6x-2\\\\$ in vertex form is:

$f(x)=(x+3)^2 -k$

6 0

3 years ago

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What’s the volume of this cone?

lara [203]

200
Because you have to multiply

5 0

3 years ago