All categories

3 years ago

Please help me i would appreciate it. Also provide proof.

Mathematics

1 answer:

loris [4]3 years ago

3 0

This is 60 because if you were to 12 times 1 you would get 12 then multiply by 5 and you get 60. Now to check your answer do 12 divided by 12 which gives you 1 and do 60 divided by 12 gives u 5. Therefore the answer is 60cm hope this helps!

You might be interested in

If (x/y)^a-1=(y/x)^a-3.then find the value of a

Y_Kistochka [10]

Step-by-step explanation:

It can answer your question

https://brainly.in/question/20382079

8 0

3 years ago

Please help ! I have been stuck on this calculus problems, I will mark you brainliest!

Anna71 [15]

Answer:

$\displaystyle J'(3) = -1$

General Formulas and Concepts:

Algebra I

Functions
Function Notation

Calculus

Derivatives

Derivative Notation

Derivative Rule [Chain Rule]: $\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)$

Derivative: $\displaystyle \frac{d}{dx} [e^u]=e^u \cdot u'$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle J(x) = e^{f(x)}$

Step 2: Differentiate

eˣ Derivative [Derivative Rule - Chain Rule]: $\displaystyle J'(x) = \frac{d}{dx}[e^{f(x)}] \cdot \frac{d}{dx}[f(x)]$
Simplify: $\displaystyle J'(x) = f'(x)e^{f(x)}$

Step 3: Evaluate

Substitute in x [Derivative]: $\displaystyle J'(3) = f'(3)e^{f(3)}$
Substitute in function values: $\displaystyle J'(3) = -e^{0}$
Simplify: $\displaystyle J'(3) = -1$

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Derivatives

Book: College Calculus 10e

4 0

3 years ago

Find the derivative of the trigonometric function using the Chain Rule. y=cos✓x

scoundrel [369]

If y = cos(√x), then by the chain rule

dy/dx = d/dx [cos(√x)]

dy/dx = - sin(√x) d/dx [√x]

dy/dx = - sin(√x) (1 / (2√x))

dy/dx = - 1/2 sin(√x) / √x

7 0

3 years ago

On a certain hot summer's day, 694 people used the public swimming pool. The daily prices are $ 1.25 for children and $ 2.50 fo

Marianna [84]

Answer:

382 children and

312 adults swam

Step-by-step explanation:

Let the number of children be x

And let the number of adult be y

Hence on a hot summer day

x +y = 694 - - - - - - - 1

x= 694-y

Also the daily prices are $ 1.25 for children and $ 2.50 for adults

1.25x + 2.50y= 1257.50-------2

Let us substitute x= 694-y in equation 2

1.25(694-y) + 2.50y =1257.50

867.5-1.25y +2.50y = 1257.50

-1.25y+2.50y= 1257.58-867.5

1.25y= 390

y= 398/1.25

y= 312

Substitute y= 312 in equation 1 to find x

x + 312= 694

x= 694-312

x= 382

Hence 382 children and

312 adults swam

4 0

3 years ago

Please help! And make sure to add a let statement!

Reptile [31]

Answer: See explanation

Step-by-step explanation:

1. Let the small number be x

Then, the bug number will be: x + 25

Therefore, x + x + 25 = 131

2x + 25 = 131

2x = 131 - 25

2x = 106

x = 106 / 2

x = 53

Small number= 53

Big number = x + 25 = 53 + 25 = 78

2. Let the small number be x

Then, the bug number will be: x + 14

x + x + 14 = 58

2x + 14 = 58

2x = 58 - 14

2x = 44

x = 44/2

x = 22

Small number = 22

Bug number = 22 + 14 = 36

The numbers are 22 and 36.

3. Let number of basketball sold be x

Therefore, number of football sold will be x+3.

Therefore, x + x + 3 = 27

2x + 3 = 27

2x = 27 - 3

2x = 24

x = 24/2

x = 12

12 basketball were sold

Number of footballs sold = 12 + 3 = 15

4. Let calories in bowl of soup x

Hamburger = 2 × x = 2x

Therefore, x + 2x = 738

3x = 738

x = 738/3

x = 246

There are 246 calories in bowl of soup

Calories in hamburgers = 246 × 2 = 492 calories

5 0

3 years ago