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3 years ago

What are ALL of the factors of 7? Mark ALL that Apply. 7,1,5,3,4,2

Mathematics

1 answer:

lesya692 [45]3 years ago

3 0

Answer:

Just 1 and 7 I believe since it is a prime number :)

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2,222.222. Explain what happens to the place value of the 2 as the 2 moves to the right.

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It is becoming a smaller place value such as 2,000->200-> 20-> 2

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4 years ago

Factorise 5n + 15<br> Please

White raven [17]

Answer:

The correct answer is

Use the distributive property to factor

Hope this helps!

- Quinn

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3 years ago

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3 years ago

Find the second derivative at the point (1,2), given the function below. x^3+5x+y=y^3 Round answer to 3 decimals.

Savatey [412]

Answer:

-0.032

Step-by-step explanation:

The given equation is

${x}^{3} + 5x + y = {y}^{3}$

We differentiate implicitly to get:

$3{x}^{2} + 5 + \frac{dy}{dx} = 3 {y}^{2} \frac{dy}{dx}$

$\frac{dy}{dx} - 3 {y}^{2} \frac{dy}{dx} = - ( 3{x}^{2} + 5)$

$(1 - 3 {y}^{2} )\frac{dy}{dx} = - ( 3{x}^{2} + 5)$

$\frac{dy}{dx} = \frac{ - ( 3{x}^{2} + 5)}{1 - 3 {y}^{2} }$

$\frac{dy}{dx} = \frac{ 3{x}^{2} + 5}{ 3 {y}^{2} - 1 }$

We differentiate again using the quotient rule:

$\frac{d^{2} y}{d {x}^{2} } = \frac{ 6 {x} (3 {y}^{2} - 1) - (3 {x}^{2} + 5)(6y \frac{dy}{dx}) }{ (3 {y}^{2} - 1)^{2} }$

At (1,2), x=1, and y=2

$\frac{d^{2} y}{d {x}^{2} } = \frac{ 6 { \times 1} (3 { \times 2}^{2} - 1) - (3 { \times 1}^{2} + 5)(6 \times 2 \times \frac{8}{11} ) }{ (3 { \times 2}^{2} - 1)^{2} }$

$\frac{d^{2} y}{d {x}^{2} } = - 0.032$

6 0

3 years ago

Will give brainliest!

netineya [11]

Okay, so we need to plug in -40 C and 125 C into the equation.

-40= (F- 32)

Add 32 from both sides.

-8= F

125= ( F- 32)

Add 32 to both sides

157 F

-8>x<157 (the inequality)

More then -8 and less than 157 degrees Fahrenheit.

Have a nice day!

7 0

3 years ago