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3 years ago

A factory makes rods by cutting plastic pipes that are 5 feet long into 13 rods. How long is each rod? I NEED IT NOWW

Mathematics

1 answer:

Kazeer [188]3 years ago

3 0

Answer:

0.3846 feets

Step-by-step explanation:

Given that :

Full length of rod = 5 feets

Number of equal length rod cut from full length rod = 13

Length of each rod cut :

Full length of rod / number of equal length rod cut

5 feets / 13

= 0.3846 feets

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Plzzzzzz help me with this

Illusion [34]

Answer:

The first answer is -2x^2-12x-19

The second answer is 2x^2+12x+17

Step-by-step explanation:

You can calculate the vertex of each one by using the formula -b/2a =x and then plugging that in for x to find y but that's a lot of work so I just plugged them into desmos

7 0

3 years ago

Can someone PLEASE help!!!! If you get it right I will mark Brainly!

Oksana_A [137]

Answer:

C. 3 g/cm³

Step-by-step explanation:

→ Find Volume

V = 5 cm × 4 cm × 2 cm

V = 40 cm³

→ Find density

$\rm = \frac{massa}{volume}$

$\rm = \frac{120}{40}$

$\red{\boxed{ \rm \bold{= 3g/ {cm}^{2}} }}$

5 0

3 years ago

2. Eleanor Raymond works full time while her husband, Peter, attends college and works part

Arisa [49]

Answer:

Eleanor and Peter's total income

= $597.63

Step-by-step explanation:

Eleanor's Income:

Paycheck = $380.48

Eleanor's Expenses:

Birthday gift= $16.50

Peter's income

Paycheck = $120

Sales of his college textbook = $13.65

Check from Peter's father= $100

Peter's total income =Paycheck + Sales of his college textbook + Check from Peter's father

= $120 + $13.65 + $100

= $233.65

Eleanor and Peter's total income

= Eleanor's Income + Peter's total income - Eleanor's Expenses

= $233.65 + $380.48 - $16.50

= $597.63

Eleanor and Peter's total income

= $597.63

6 0

3 years ago

Int(1 \(1 + {e}^{x} )

Andreyy89

Answer:

$\begin{aligned}\int{\frac{1}{1 + e^{x}}\cdot dx}= x - \ln(1 + e^{x}) + C\end{aligned}$ .

Step-by-step explanation:

The first derivative of the denominator $1 + e^{x}$ is $e^{x}$ . Rewrite the fraction to obtain that expression on the numerator.

$\begin{aligned}\frac{1}{1 + e^{x}} &= \frac{1 + e^{x}}{1 + e^{x}} - \frac{e^{x}}{1+e^{x}}\\&=1-\frac{e^{x}}{1+e^{x}}\end{aligned}$ .

In other words,

$\begin{aligned}\int{\frac{1}{1 + e^{x}}\cdot dx} &= \int{dx} - \int{\frac{e^{x}}{1+e^{x}}\cdot dx}\end{aligned}$ .

Apply $u$ -substitution on the integral $\displaystyle \int{\frac{e^{x}}{1+e^{x}}\cdot dx}$ :

Let $u = 1 + e^{x}$ . $u > 1$ .

$du = e^{x}\cdot dx$ .

$\displaystyle \int{\frac{e^{x}}{1+e^{x}}\cdot dx} = \int{\frac{du}{u}} = \ln{|u|} = \ln{u} +C = \ln{(1+e^{x})}+C$ .

Therefore

$\begin{aligned}\int{\frac{1}{1 + e^{x}}\cdot dx} &= \int{dx} - \int{\frac{e^{x}}{1+e^{x}}\cdot dx}\\ & = x - \ln{(1 + e^{x})}+C\end{aligned}$ .

7 0

3 years ago

Which of the following represents the factorization of the binomial below?

Afina-wow [57]

Answer:

A. (x+12)(x-12)

Step-by-step explanation:

Use foil method

x * x = x^2

x * - 12 = - 12x

12 * x = 12 x

12 * - 12 = - 144

x^2 [- 12x + 12x= 0x = 0] - 144

x^2 + 0 - 144 =

x^2 - 144 #

5 0

4 years ago