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3 years ago

Which of the following best explains why President Nixon referred to

Mathematics

1 answer:

slamgirl [31]3 years ago

3 0

The answer is B on edge

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5(3a+b)−2(3a+b) in simplest form<br> I NEED HELP!

nordsb [41]

Answer:

$9a + 3b$

Is the answer

Step-by-step explanation:

$5(3a + b) - 2(3a + b) \\ = 15a + 5b - 6a - 2b \\ = 9a + 3b$

$( - ) \times ( + ) = ( - ) \\$

That is why

$( - 2) \times b = - 2$

And

$( - 2) \times 3a = ( - 6)$

7 0

3 years ago

Please help #3 will mark brainliest

Darina [25.2K]

Answer:

im preety sure its c

Step-by-step explanation:

8 0

3 years ago

a train travelling at 60 km per hour completes the journey in 8 hour. How much faster would it have to travel to cover the same

antiseptic1488 [7]

Answer:

Total distance covered: 60x8 = 480

Speed needed to cover distance of 480 km in 6 hrs = 480/6 = 80 km/hr.

initial velocity : 60 km/hr.

Train needs to run faster with speed of 20km per hour to achieve same distance in 6 hrs.

Step-by-step explanation:

4 0

3 years ago

What is the inverse of the function f(x) = 2x + 1?

Alexandra [31]

Answer:

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

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 2x + 1 ( subtract 1 from both sides )

y - 1 = 2 ( divide both sides by 2 )

$\frac{y-1}{2}$ = x

Change y back into terms of x and let x = $f^{-1}$ (x), thus

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

6 0

3 years ago

Use cubes. color and draw to show a way to take apart 7.

Ray Of Light [21]

What do you mean
give details
then i could help you

7 0

3 years ago