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3 years ago

Subtract (5x-3) from (2x+4)

Mathematics

1 answer:

Darya [45]3 years ago

3 0

Answer:

Step-by-step explanation:

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2b^2x^2+3a^2y^2=a^2b^2 for b^2

Artemon [7]

Answer:

${b}^{2} = \frac{3 {a}^{2} {y}^{2} }{ {a}^{2} - 2 {x}^{2} }$

Step-by-step explanation:

We want to solve for b² in

$2 {b}^{2} {x}^{2} + 3 {a}^{2} {y}^{2} = {a}^{2} {b}^{2}$

Combine terms containing b²

$3 {a}^{2} {y}^{2} = {a}^{2} {b}^{2} - 2 {b}^{2} {x}^{2}$

Factor b² to get:

$3 {a}^{2} {y}^{2} = ({a}^{2} - 2 {x}^{2}) {b}^{2}$

Divide by a² -2b²

${b}^{2} = \frac{3 {a}^{2} {y}^{2} }{ {a}^{2} - 2 {x}^{2} }$

4 0

3 years ago

Maria has a total tax of $3072 and a gross income of $60449. What is her effective tax rate (as a percent)?

Galina-37 [17]

Answer:

Effective tax rate of Maria is 5.08%.

Step-by-step explanation:

Effective tax rate ETR = $\frac{Total tax}{gross income}$

As a percent we can represent ETR = $\frac{Total tax}{Taxable income}$ ×100

In this question Maria has a total tax = $3072 and gross income = $60449

By putting these values in the formula ETR = $\frac{3072}{60449}$ ×100 = 5.08

Therefore her effective tax rate is 5.08%.

7 0

3 years ago

Which expression does NOT have a Greatest Common Factor?

Misha Larkins [42]

Answer:

4x^2-9

Step-by-step explanation:

i just took the quiz

3 0

3 years ago

7(3.5+2)+8(9.3-7) please help

CaHeK987 [17]

Answer:

awdwdadadawdawdawdw

Step-by-step explanation:

awdadwdawddwadawdwa

8 0

3 years ago

Read 2 more answers

How to solve <br>(a-3)4

Aloiza [94]

Answer: a

−

Step-by-step explanation:

Multiply everything by 3 to cancel out the division by 3 on the left, and that should leave you with

⋅

−

(Dividing and multiplying are opposites, like adding and subtracting or integrating and differentiating. One does something, the other undoes it. If you want to get rid of a multiplication, divide it. If you want to get rid of an integration, differentiate it.)

5 0

3 years ago

Read 2 more answers