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3 years ago

Simplify the expression. 55−4⋅5+12 Enter your answer in the box.

Mathematics

2 answers:

iren [92.7K]3 years ago

8 0

Answer:

The answer is 47.

Step-by-step explanation:

From PEMDAS we know that for this problem, we do the Multiplication first, then the Addition and Subtraction.

55-4*5+12 =

55-20+12 =

35 + 12 = 47

kotykmax [81]3 years ago

3 0

Answer:

Step-by-step explanation:

P ()

E ${0}^{2}$

M ×

D ÷

A +

S -

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Please help please help please help please help please help please help please help please help

german

Answer:

11x + y = 25

Step-by-step explanation:

Start with y = mx + b

Slope is -11, so m = -11

Point is (2, 3), so we plug that back in to get the intercept.

3 = -11 * 2 + b

3 = -22 + b

b = 25

y = -11x + 25

11x + y = 25 in standard form.

3 0

3 years ago

Solve the differential equation. y' + 5xey = 0.

Gwar [14]

Answer:

The solution is $y = - ln(\frac{5}{2}x^{2} + C)$

Step-by-step explanation:

To solve the differential equation, we will find $y$

From the given equation, y' + 5xey = 0.

That is, $y' + 5xe^{y} = 0$

This can be written as

$\frac{dy}{dx} + 5xe^{y} = 0$

Then,

$\frac{dy}{dx} = - 5xe^{y}$

$\frac{dy}{e^{y}} = - 5x dx$

Then, we integrate both sides

$\int {\frac{dy}{e^{y}}} =\int {- 5x dx}$

$\int {e^{-y}dy }} =\int {- 5x dx}$

Then,

$-e^{-y} = -\frac{5}{2}x^{2} + C$

$e^{-y} = \frac{5}{2}x^{2} + C$

Then,

$ln(e^{-y}) = ln(\frac{5}{2}x^{2} + C)$

Then,

$-y = ln(\frac{5}{2}x^{2} + C)$

Hence,

$y = - ln(\frac{5}{2}x^{2} + C)$

8 0

2 years ago

Beth has a summer job that pays $9.76 an hour. She will be paid time-and-a-half for all hours over 40. Her boss told her that sh

Zarrin [17]

Beth will make about 507.52 per week.

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3 years ago

What percent of 21 is 28?

laiz [17]

Answer:75

Step-by-step explanation:

21 divded by 28 times 100= 75

6 0

3 years ago

Read 2 more answers

What is the square root of 6

Misha Larkins [42]

Answer:

2.44948974278

Step-by-step explanation:

I dont if you can do this but recommend using calculator there is no easy to find the square root by writing it out

4 0

3 years ago