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3 years ago

(12y 2+17y-4)+(9y-13y+3)

Mathematics

1 answer:

IrinaVladis [17]3 years ago

8 0

Answer:

4y+3

Step-by-step explanation:

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Astronomers measure large distances in light years. One light-year is the distance that light can travel in one year or approxim

Firlakuza [10]

Answer:

Option C $=8.4672\times10^{13}$

Step-by-step explanation:

Given : Astronomers measure large distances in light years. One light-year is the distance that light can travel in one year or approximately 5,880,000,000,000 miles.

Suppose a star is 14.4 light years from earth.

To find : How many miles away a star is from earth?

Solution :

In 1 light-year the distance a light can travel is = 5,880,000,000,000 miles.

or = $5.88\times 10^{12}$ miles

In 14.4 lights year the distance is $=14.4\times (5.88\times10^{12})$

$=84.672\times10^{12}$

or $=8.4672\times10^{13}$

Therefore, Option C is correct - $=8.4672\times10^{13}$

5 0

3 years ago

Read 2 more answers

I had 3 apples. I add 2 more apples. How many apples do I have?

navik [9.2K]

Answer:

5 lol

Step-by-step explanation:

6 0

3 years ago

Compare: 8/12 to 6/9 which one is greater

katrin [286]

Answer:

None they are both equal

Step-by-step explanation:

You find the common denominator which is 108

8/12 equals to 72/108

6/9 equals to 72/108

7 0

3 years ago

Read 2 more answers

I keep getting (10,5) or (0,5) someone pls help

rodikova [14]

Answer:

(4,-3)

Step-by-step explanation:

Multiplying the bottom equation by -6, we get -6x+12y=-60.

Adding this to the first equation gives 15y=-45, and thus y=-3.

So, it follows that 6x+3(-3)=15, and thus x=4.

4 0

2 years ago

If you add Natalie's age and Fred's age, the result is 42. If you add Fred's age to 3 times

Alla [95]

Answer:

N+F=42 & F+3N=70 System Solved: Natalie is 14 and Fred is 28

Step-by-step explanation:

Using variables N=natalies age and F=Freds age

N+F=42 ----> N=42-F (take this and plug it into the other equation)

F+3N=70 so F+3(42-F)=70 [simplify] F+126-3F=70 [further simplify]

-2F=-56 [divide -56 by -2] F=28 [then plug this number into the orig. equation]

So N+28=42 or N=14.

5 0

3 years ago