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3 years ago

Explain what can happen if you line up the digits incorrectly when you rewrite addition problems

1 answer:

5 0

When writing addition problems it doesnt matter which way you put the numbers the sum will always be the same if you are adding correctly i believe.

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The number of milligrams of a certain medicine a veterinarian gives to a dog varies directly with the weight of the dog. If the

sineoko [7]

W/6=d

Because 30 is 6 times 5

4 0

3 years ago

The sequence a1 = 6, an = 3an-1 can also be written as

wariber [46]

The question as presented is incomplete, here is the complete question with the multiple choice:

The sequence a1 = 6, an = 3an − 1 can also be written as:

1) an = 6 ⋅ 3^n
2) an = 6 ⋅ 3^(n + 1)
3) an = 2 ⋅ 3^n
4) an = 2 ⋅ 3^(n + 1)

The correct choice is option 3) an = 2⋅3^n.

If we look at the initial sequence an = 3⋅an-1, and

a1 = 3⋅a0 = 6
a0 = 6/3
a0 = 2

We can now look at the sequence.

a0 = 2
a1 = 6
a2 = 18
a3 = 54
etc...

A common factor in each of those numbers is 2, so we can rewrite the sequence by factoring out 2.

a0 = 2⋅1
a1 = 2⋅3
a2 = 2⋅9
a3 = 2⋅27

The numbers being multiplied by 2 are all factors of 3. So we can rewrite the sequence again as:

a0 = 2⋅3^0
a1 = 2⋅3^1
a2 = 2⋅3^2
a3 = 2⋅3^3

This sequence can now be rewritten as an = 2⋅3^n.

7 0

3 years ago

Korey runs every 3rd day and swims every 4th day. If he runs and swims today, how many days will it be before Korey runs and swi

hichkok12 [17]

Answer: 12 days

Step-by-step explanation:

Based on the question, we have to list the multiples of 3 and 4. This will be:

3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

4 = 4, 8, 12, 16, 20, 24, 28, 32, 36, 40.

The lowest common multiple is 12.

It will take 12 days before Korey runs and swims again on the same day.

5 0

3 years ago

DF bisects EDG Find FG. The diagram is not to scale. A.15 B.14 C.19 D. 28

Ahat [919]

Answer:

○ b. $14$

Step-by-step explanation:

Since DF is a segment bisector, set both expressions equal to each other:

3n - 4 = n + 8

-3n - 3n

__________

−4 = −2n + 8

-8 - 8

_________

−12 = −2n

__ ___

−2 −2

$6 = n$ [Plug this back into both expressions above to get the value of 14]; $14 = FG; 14 = EF$

I am joyous to assist you anytime.

6 0

3 years ago

Find the gradient (m) and y-intercept (c) of the equation y =-2/3x+1/3

quester [9]

Step-by-step explanation:

x÷z46 ×32% = 546% sorry i rlly need points

4 0

3 years ago