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3 years ago

PLEASE LOOK AT THE PHOTO TO ANSWER also please don't guess! I'll mark you as Brainlest! :D

Mathematics

2 answers:

Ainat [17]3 years ago

8 0

You already have the correct answer my friend!

aleksandr82 [10.1K]3 years ago

6 0

Answer:

the last one

Step-by-step explanation:

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Suppose y = sqrt 2x+1, where x and y are functions of t.

frutty [35]

If y = √(2x + 1), then differentiating both sides implicitly with respect to t gives

dy/dt = 1/2 • 1/√(2x + 1) • 2 • dx/dt = 1/√(2x + 1) • dx/dt

(a) If dx/dt = 9 and x = 4, then

dy/dt = 1/√(2•4 + 1) • 9

dy/dt = 1/√(8 + 1) • 9

dy/dt = 1/√9 • 9

dy/dt = 9/3

dy/dt = 3

(b) If dy/dt = 3 and x = 40, then

3 = 1/√(2•40 + 1) • dx/dt

3 = 1/√(80 + 1) • dx/dt

3 = 1/√81 • dx/dt

3 = 1/9 • dx/dt

dx/dt = 27

5 0

2 years ago

How do you square 1/4?

Strike441 [17]

1/4 squared would be 1/4 times 1/4 which would eqaul 0.063

3 0

3 years ago

+12<16<br> Please with steps :)

mixas84 [53]

Answer:

0,1,2,3

Step-by-step explanation:

6 0

2 years ago

Which operation should be performed first for calculations involving more than one arithmetic operation?

jeka94

Hi!

When following the order of operations, A. Parantheses (or brackets) come first. =)

8 0

3 years ago

Read 2 more answers

Justin earns 5% commission on his real estate sales. One year, his total commission was 35,750. What were his sales for that yea

Ymorist [56]

The sales for the particular year was: 715000

Step-by-step explanation:

We will use the percentage formula for finding the total sales.

Given

Commission Rate = 5%

Commission = 35750

Let x be the sales

So,

$Commission=Sales * 5\%\\35750=x * \frac{5}{100}\\35750=x * 0.05\\x = \frac{35750}{0.05}\\x= 715000$

The sales for the particular year was: 715000

Keywords: Commission, Percentage

Learn more about percentage at:

#LearnwithBrainly

6 0

3 years ago

PLEASE LOOK AT THE PHOTO TO ANSWER also please don't guess! I'll mark you as Brainlest! :D​

PLEASE LOOK AT THE PHOTO TO ANSWER also please don't guess! I'll mark you as Brainlest! :D