All categories

3 years ago

Can some0ne help me?

Mathematics

2 answers:

xxMikexx [17]3 years ago

6 0

g(x) = 3x + 2

y = 3x + 2

x = 3y + 2

3y = x - 2

y = x/3 - 2/3

inverse g(x) = (x - 2) / 3

g(x) = 4 - 5x

y = 4 - 5x

x = 4 - 5y

5y = 4 - x

y = 4/5 - x/5

inverse g(x) = (4 - x) / 5

PtichkaEL [24]3 years ago

4 0

Answer:

(x - 2)/3

(x - 4)/-5 or (-x + 4)/5

Step-by-step explanation:

this is an inverse function, and to solve an inverse function you would :

swap x and g(x) without bringing the x coefficient with it, just simply swap the variables. Then, solve for g(x), and that's it

the first question's answer is :

g(x) = 3x + 2

x = 3(g(x)) + 2

x - 2 = 3(g(x))

(x - 2)/3 = g(x)

the second one is:

g(x) = 4 - 5x

x = 4 - 5(g(x))

x - 4 = -5(g(x))

(x-4)/-5 = g(x)

You might be interested in

Yen paid $10.50 for 2.5 pounds of pretzels. What price did she pay for each pound of pretzels?

iVinArrow [24]

Answer:

$4.20

Step-by-step explanation:

$10.50 / 2.5 = 4.20

Therefore, Yen paid $4.20 for each pound of pretzels.

4 0

2 years ago

Read 2 more answers

The ratio between the vertical angle and a base angle of an isosceles triangle is 4:3,find all the angles of the triangle

koban [17]

<span>Given ratio between the base angle and vertical angle of an isosceles traingle is 2:5

⇒ base angle / vertical angle = 2 / 5

let base angle = x

⇒ verticle angle = (5/2)x

we know that
verticle angle + base angle + base angle = 180°

⇒ ( 5/2 + 1 + 1 ) x = 180°

⇒ (9/2)x = 180°

⇒ x = ( 180° x 2) / 9

⇒ x = 40°

verticle angle = (5/2) x 40° = 100°

</span>

4 0

3 years ago

Help please explain as simple as possible

Virty [35]

Short answer: (-8)^2 + 8 x -8 = 0

Use PEMDAS

"Evaluate the expression" just means solve until you can't simplify anymore. You must solve it in a certain order according to PEMDAS: Parentheses, Exponents, Multiply, Divide, Add, Subtract.

What does the beginning of the expression look like? It is $(-8)^{2}$ .

According to PEMDAS, you must solve what is in the parentheses *first*. But, since there is only a number (-8), there is nothing to solve for and you can move on to exponents.

The squared symbol, the little 2, means you have to square what is *inside* the parentheses. $(-8)^{2}$ = 64, because -8 times itself is 64.

Next comes multiplication. Remember, we are not working from left to right. We must multiply the values on the far right before we do any adding, because multiplication comes *before* addition.

(64) + (8 times -8)

(64) + (-64)

Finally, we can add. In this case, because we are adding a negative number, we are really subtracting. 64 + -64 equals 0.

8 0

3 years ago

What is 8 divided by 4

Gennadij [26K]

2 because u divide 8 by 4 and u get the answer 2

8 0

3 years ago

Read 2 more answers

Expanding logarithmic Expression In Exercise,Use the properties of logarithms to rewrite the expression as a sum,difference,or m

ch4aika [34]

Answer:

$\ln x+\frac{1}{3}\ln (x^2+1)$