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3 years ago

9

Help me please I’m so confused ):

1 answer:

Marrrta [24]3 years ago

4 0

The domain is all the x-values you can use with this function. When dealing with a function like this, you need to ask yourself, what would make the bottom equal to 0? Whatever those numbers are, you do NOT want them in your domain.

A fundamental rule is that you cannot divide by 0 or have 0 as a denominator.

So, you solve x^2+6x=0 to find that x=0 or x=-6 would make the denominator 0.

The domain is everything BUT those two values, because they essentially break your function.

You might be interested in

kirza4 [7]

forget the numerator of the fraction for now; the x to-the-power -3/6 is equal to x to-the-power -1/2 -- x^(-1/2)

use the rule a^-b= 1/(a^b)

to get: x to-the-power -(-1/2) which = x^1/2

7 0

4 years ago

Find an equation of the tangent line to the curve at the given point. y = x3 âˆ’ 3x + 2, (3, 20)

lisov135 [29]

Answer:

$y - 20 = 24(x - 3)$

Step-by-step explanation:

Equation of a line:

The equation of a line, in point-slope form, has the following format:

$y - y_0 = m(x - x_0)$

In which the point is $(x_0,y_0)$ and the slope is m.

(3, 20)

This means that $x_0 = 3, y_0 = 20$ . So

$y - y_0 = m(x - x_0)$

$y - 20 = m(x - 3)$

Slope:

The slope is the derivative of the function at the point:

The function is:

$y = x^3 - 3x + 2$

The derivative is:

$y^{\prime}(x) = 3x^2 - 3$

At the point, we have that $x = 3$ . So

$m = y^{\prime}(3) = 3*3^2 - 3 = 27 - 3 = 24$

So the equation to the tangent line to the curve a the point is:

$y - 20 = 24(x - 3)$

8 0

3 years ago

Which unit rate is the lowest price per ounce?

marin [14]

Answer:

Choice B

Step-by-step explanation:

Divide both of the choices by the price and ounces. You will find that the unit rate of choice B is lower.

Work

3.49/25=0.14

4.79/45=0.106

Therefore choice B has the lowest unit rate and that is the answer!

8 0

3 years ago

Can someone help me with this problem? thank you!

Ostrovityanka [42]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's solve ~

$\qquad \sf \dashrightarrow \: c = \pi d$

where, d = 2r = 2 × 5 = 10 cm

$\qquad \sf \dashrightarrow \: c = 3.14 \times 10$

$\qquad \sf \dashrightarrow \: c = 31.4 \: cm$

4 0

2 years ago

Read 2 more answers

Flaws in a carpet tend to occur randomly and independently at a rate of one every 270 square feet. What is the probability that

Goryan [66]

Answer:

Probabilty= 0.0015355

Step-by-step explanation:

Flaws in a carpet tend to occur randomly and independently at a rate of one every 270 square feet.

Probabilty= 1/270

Probabilty= 0.0037

carpet that is 8 feet by 14 feet

Area=8*14

Area=112 square feet

Probabilty= 0.0037*(112/270)

Probabilty= 0.0037*0.415

Probabilty= 0.0015355

7 0

3 years ago