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2 years ago

What is the compound ratio of 3:4 and 4:5?

Mathematics

1 answer:

sergejj [24]2 years ago

5 0

Use this link i cant put it

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Help please. Thx! If you did

Minchanka [31]

Answer:

<h2><em><u>See in attachment and Mark as brainleist please.</u></em></h2>

6 0

2 years ago

The general solution of 2 y ln(x)y' = (y^2 + 4)/x is

Sav [38]

Replace $y'$ with $\dfrac{\mathrm dy}{\mathrm dx}$ to see that this ODE is separable:

$2y\ln x\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{y^2+4}x\implies\dfrac{2y}{y^2+4}\,\mathrm dy=\dfrac{\mathrm dx}{x\ln x}$

Integrate both sides; on the left, set $u=y^2+4$ so that $\mathrm du=2y\,\mathrm dy$ ; on the right, set $v=\ln x$ so that $\mathrm dv=\dfrac{\mathrm dx}x$ . Then

$\displaystyle\int\frac{2y}{y^2+4}\,\mathrm dy=\int\dfrac{\mathrm dx}{x\ln x}\iff\int\frac{\mathrm du}u=\int\dfrac{\mathrm dv}v$

$\implies\ln|u|=\ln|v|+C$

$\implies\ln(y^2+4)=\ln|\ln x|+C$

$\implies y^2+4=e^{\ln|\ln x|+C}$

$\implies y^2=C|\ln x|-4$

$\implies y=\pm\sqrt{C|\ln x|-4}$

4 0

2 years ago

For what values of x is the expression below defined?<br> √x+4÷√1-x

wariber [46]

Answer:

x=1

Step-by-step explanation:

4 0

1 year ago

Read 2 more answers

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks. Craig's Bakery re

soldi70 [24.7K]

Answer:

a. 311 hours

b. i. $3,100 in receipts

ii. $2,799 in expenses.

Step-by-step explanation:

a. The company is making $10 per hour and spending $9 an hour. Their profit is therefore:

= 10 - 9

= $1 per hour

Since they spent $311 on the new equipment, the amount of time it would take for them to make this back is:

= 311 / 1

= 311 hours

b. In 311 hours, the total receipts would be:

= 311 * 10

= $3,110

The expenses would be:

= 311 * 9

= $2,799

8 0

2 years ago

TYPES OF TRIANGLES RIGHT ANGLED TRIANGLE ETC

user100 [1]

Answer:

Step-by-step explanation:

b) Parallelogram

c) Square

d) Parallelogram***

***Not too sure about this one.

7 0

2 years ago