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2 years ago

Evaluate the expression 24x - 13y for x = 3 and y = 2 i need help

Mathematics

1 answer:

Vesna [10]2 years ago

3 0

Answer:

Step-by-step explanation:

You need just substitute values of x and y, and calculate.

24x - 13y = 24*3 - 13*2 = 72 - 26 = 46

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How do you simplify this problem

vampirchik [111]

Reduce the fraction with 2
$\frac{2 \times x {}^{ - 2} y {}^{3}z {}^{ - 1} }{xy} \\ \\ \frac{3y {}^{2}z {}^{ - 1} }{x {}^{3} } \\ \\ \frac{3y {}^{2} }{x {}^{3} z}$

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2 years ago

What is the inverse of cube root x/3 +1

Ostrovityanka [42]

Answer:

${f}^{ - 1} (x) = 3 {x}^{2} - 3$

Step-by-step explanation:

We want to find the inverse of

$y = \sqrt[3]{ \frac{x}{3} + 1}$

We interchange x and y to get:

$x= \sqrt[3]{ \frac{y}{3} + 1}$

We solve for y;

${x}^{2} = \frac{y}{3} + 1$

Multiply through by 3

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

Subtract 1 from both sides:

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

Therefore the inverse is

${f}^{ - 1} (x) = 3 {x}^{2} - 3$

8 0

2 years ago

I really need help or I’m gonna fail the semester

Tanzania [10]

Rational Number, Real Number

3 0

2 years ago

4.) Trina earns $28.50 tutoring for 3 hours. How much would Trina earn tutoring for 2 hours?

Dafna11 [192]

Answer:

Step-by-step explanation:

First, find the unit rate. (How much she makes in 1 hour.)

28.50/3 is 9.5

Now it asks for how much she will make in 2 hours.

9.5 x 2 is

19.

6 0

2 years ago

CAN someone help with #4 please?

Masja [62]

The constant of proportionality is 4 .

The equation is [ Height = (4) times (Days) ] .

When the sunflower is 60cm tall, 60 = (4) times (Days).

Divide each side of the equation by 4: 15 = Days

8 0

2 years ago

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