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2 years ago

Find the inverse f(x) = 3х^2 - 1

Mathematics

1 answer:

Darya [45]2 years ago

7 0

Answer:

What do you mean?

Step-by-step explanation:

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Please help right now!!!!! Solve the system of equations below. x + y = 7 2x + 3y = 16

motikmotik

Answer:

$x=5$ and $y=2$ .

Step-by-step explanation:

We have been given a system of equations. We are asked to solve our given system.

$x+y=7...(1)$

$2x+3y=16...(2)$

From equation (1), we will get:

$x=7-y$

Upon substituting this value in equation (2), we will get:

$2(7-y)+3y=16$

$14-2y+3y=16$

$14+y=16$

$14-14+y=16-14$

$y=2$

Now, we will substitute $y=2$ in equation (1).

$x+2=7$

$x+2-2=7-2$

$x=5$

Therefore, the point $(5,2)$ is solution for our given equation.

7 0

3 years ago

Three fourths of the fruit in a refrigerator

VashaNatasha [74]

Answer:32 fruits

Step-by-step explanation:

3/4=24/?

24÷3=8

8×4=32

4 0

3 years ago

Twelve is added to the product of a number and 5. The result is -3. Find the number. And write an equation for this. SHOW FULL W

Free_Kalibri [48]

Let the number be x

Equation:

12 + 5x = -3

Answer: The equation is 12 + 5x = -3

Solve it:

5x = -3 - 12

5x = -15

x = -15 ÷ 5

x = -3

Answer: The number is -3.

3 0

2 years ago

Read 2 more answers

PLEASE HELP ASAP

dezoksy [38]

Answer:

Round 1.9 to 2 cm and multiply by 18.

Step-by-step explanation:

Round 1.9 to 2 cm and multiply by 18. then you will get your answer

8 0

2 years ago

Can someone help? This is so hard

Sunny_sXe [5.5K]

Answer:

#1 x = 31°

#2 x = 125°

Step by Step Explanation:

By the theorem of intersecting secants outside of the circle, we have:

$x=\frac{1}{2}(103\degree-41\degree)$

$\implies x=\frac{1}{2}(62\degree)$

$\implies \red{\bold{x=31\degree}}$

By the theorem of intersecting chords, we have:

$x=\frac{1}{2}(96\degree+154\degree)$

$\implies x=\frac{1}{2}(250\degree)$

$\implies \purple{\bold{x=125\degree}}$

4 0

2 years ago