If r◼s = 3r + s, find 4◼(2◼1).

Mathematics

1 answer:

eimsori [14]3 years ago

4 0

By definition of ◼, we have

2 ◼ 1 = 3•2 + 1 = 7

4 ◼ (2 ◼ 1) = 4 ◼ 7 = 3•4 + 7 = 19

You might be interested in

!!!URGENT!!!<br> WILL GIVE YOU BRAINLIEST!!!<br> 10 POINTS!!!<br> Solve 4x+9=4x+13

pickupchik [31]

Answer:

No solution

Step-by-step explanation:

4x+9=4x+13

9 ≠ 13

No solution

7 0

3 years ago

Read 2 more answers

Convert 7.7km into miles if 1.6 km = 1 mile

Lemur [1.5K]

This is a simple equation.

The equation is y = 1.6x with y being the miles and x being the kilometers.

Lets plug the kilometers in.

Y=1.6(7.7)

1.6 * 7.7 = 12.32

12.32 miles is equal to 7.7 kilometers

HOWEVER

There are about .6 miles in a kilometer, so if you typed this wrong I don't know.

It is still the same concept.

Y = .6x

Y = .6(7.7)

.6 * 7.7 = 4.8

In this case there are 4.8 miles in 7.7 kilometers

3 0

3 years ago

How many solutions would there be to make an equation true?

mariarad [96]

Answer:

Step-by-step explanation:

Only one

5 0

3 years ago

Given the definitions of f(x) and g(x) below, find the value of g(f(-1)).

Reptile [31]

Answer:

-14

Step-by-step explanation:

$f(x) = -4x – 7 \\ plug \: x = - 1 \\ f( - 1) = - 4( - 1) - 7 = 4 - 7 = - 3 \\g(x) = x² + 7x – 2 \\g(f( - 1)) = {( - 3)}^{2} + 7( - 3) - 2 \\ = 9 - 21 - 2 \\= - 14$