Find dy/dx
2x+3y=sinx

Answers

Answer 1

Answer: $2x+3y=sinx\n\n3y=sinx-2x\ \ \ \ /:3\n\ny=(1)/(3)(sinx-2x)\n\n(\delta y)/(\delta x)=\left[(1)/(3)(sinx-2x)\right]'=(1)/(3)\left[(sinx)'-(2x)'\right]=(1)/(3)(cosx-2)$

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Write the expression. Then, complete the statements.The word "twice" means
twice the difference of a number and seven
The words "the difference of indicate
Key Words
Replace With
The expression is written as
twice
2x
the difference of
(
a number
n
seven
7

Answers

The answer is shown below:

2
-
2(n-7)

What is expression?

An expression in math is a sentence with a minimum of two numbers/variables and at least one math operation in it

A number is 6 more than half the other number, and the other number is x. This statement is written as x/2 + 6 in a mathematical expression. Mathematical expressions are used to solve complicated puzzles.

Expression Definition in Math

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:

Constant: A constant is a fixed numerical value.
Variable: A variable is a symbol that doesn't have a fixed value.
Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.
Coefficient: A coefficient is a number that is multiplied by a variable in an expression.

The complete statement is

The word "twice" means ( 2* )

The words "the difference of indicate (-)

The expression is written as

2( n-7)

Learn more about expression here:

brainly.com/question/14083225

#SPJ2

Answer:

The word “twice” means

✔ multiplication by 2

The words “the difference of” indicate

✔ subtraction in parentheses

The expression is written as

✔ 2(n – 7)

Step-by-step explanation:

The bank balance was $1,234,567 on January 31. In February, we received $825k on paid invoices, and had $198k in cost of sales, $356k in overhead, and $92k in other expenses. In March, we expect cash revenue to grow by 12% and all expenses to grow by 9%. What do you project the bank balance to be on April 1?

Answers

Answer:

April Beginning Balance $ 1,633,427

Step-by-step explanation:

The closing balance of January is the opening balance of February

February,

Opening Balance $1,234,567

Add Payment received on invoices $825k

Less Cost of sales $198k,

Less Overheads $356k ,

Less Other Expenses $92k .

February Ending Balance $ 1,413, 567

March

Beginning Balance $ 1,413, 567

Add Payment received on invoices $825k *1.12= 924 k

Less Cost of sales $198k *1.09= 215.82k

Less Overheads $356k *1.09= 388.04k

Less Other Expenses $92k *1.09= 100.28k

March Ending Balance = $ 1,633,427

April Beginning Balance $ 1,633,427

Treating the Costs of Sales, Overheads and the other expenses as the expenses paid out of the Bank Balance meaning no accounts payable or other cash paid.

Five times a number decreased by nine is equal to twice the number increased by 23. Which equation could be used to solve the problem?Rachna has nickels, dimes, and quarters in her piggy bank. She has $4.65 altogether. She has three more quarters than dimes and twice as many nickels as quarters. How many quarters does Rachna have?

Three times a number, x, increased by four is equal to five times the number, x. Which equation can be used to solve for x?

What is the value of x in the equation 0.2(x + 1) + 0.5x = –0.3(x – 4)?

Answers

Answer:

Part 1) $5x-9=2x+23$

Part 2) $11\ quarters$

Part 3) $3x+4=5x$

Part 4) $x=1$

Step-by-step explanation:

Part 1)

Let

x-----> the number

The expression" Five times a number decreased by nine is equal to twice the number increased by $23$ ", is equal to the algebraic expression

$5x-9=2x+23$

Part 2) we have that

$1\ nickel=\$0.05$

$1\ dime=\$0.10$

$1\ quarter=\$0.25$

Let

x------> the number of nickels

y-------> the number of dimes

z-------> the number of quarters

$0.05x+0.10y+0.25z=4.65$

Multiply by $100$ both sides

$5x+10y+25z=465$ ------> equation A

$z=3+y$ -----> isolate the variable y

$y=z-3$ ------> equation B

$x=2z$ ------> equation C

substitute equation B and equation C in equation A

$5(2z)+10(z-3)+25z=465$

$10z+10z-30+25z=465$

$45z=465+30$

$45z=495$

$z=11\ quarters$

Part 3) we know that

Let

x------> the number

The equation that represent the expression is equal to

$3x+4=5x$

Part 4) we have

$0.2(x+1)+0.5x=-0.3(x-4)$

Multiply by $10$ both sides

$2(x+1)+5x=-3(x-4)$

$2x+2+5x=-3x+12$

$7x+3x=12-2$

$10x=10$

$x=1$

The first one is 5x-9=2x+23

The third one is 3x+4=5x

If the slope of a line is 2 and its y-intercept is 5, what is the equation of the line?

Answers

hello,

y=2x+5
==========
(y-5)=2(x-0)

I believe from having the same test its Y=5+2 x=0

A certain shade of pink is created by adding 3 cups of white paint to 2 cups ofred paint. If 7 cups of white paint is used, how many cups of red paint is needed?

Answers

Answer:

10 1/2

Step-by-step explanation:

white : red

2 : 3

1 : 3/ 2

7 : 3/2 ×7

7 : 10.5

7 : 10 1/2

option 3 is the answer

Greetings from Brasil...

Let's apply rule of 3....

WP RP

3 -------- 2

7 -------- X

3 · X = 7 · 2

3X = 14

X = 14/3

remember that

14/3 = 4 2/3

So, 7 WP = 4 2/3 RP

................................................

D | d

R Q

D/d = Q R/d

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) Step 1: 12 + (–3)·(–2x) + (–3)·(4)
Step 2: 12 + 6x + (–12)
Step 3: 12 + (–12) + 6x
Step 4: 0 + 6x Step 5: 6x

What property of real numbers was used to transition from Step 3 to Step 4?
A. identity property of addition
B. inverse property of addition
C. associative property of addition
D. commutative property of addition