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3 years ago

How to the solve the equation by completing the square?

Mathematics

1 answer:

saw5 [17]3 years ago

8 0

Https://m.quickmath.com/solve-equation-inequality type it in to heee

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7f=49 i need help fasttttttttt

malfutka [58]

Answer:

f = 7

Step-by-step explanation:

7f = 49

Divide each side by 7

f = 7

7 0

3 years ago

Read 2 more answers

Tobias sent a chain letter to his friends, asking them to forward the letter to more friends. The number of people who receive t

malfutka [58]

Answer:

$P(t)=37\times (4)^{(t/9.1)}$

Explanation:

The number of emails is multiplied by 4 every 9.1 weeks.

Thus, since Tobias initially sent the chain letter to 37 friends, the number of letters will grow as per this geometric series:

Start: 37 letters

In 9.1 weeks: 37 × 4

In 2 × 9.1 weeks: 37 × (4)²

In 3 × 9.1 weeks: 37 × (4)³

As you see, the exponent is the number of weeks divided by 9.1

Thus, if your variable is the number of weeks, t, then the exponent is t/9.1

And the exponential function, P(t) will be:

$P(t)=37\times (4)^{(t/9.1)}$

3 0

3 years ago

Which is shorter 3/6 of a minute or 2/6 of an hour

Juliette [100K]

3/6 of a minute because an hour is much longer

6 0

3 years ago

Read 2 more answers

Terry wants to divide his 120 baseball cards into two groups, so that the ratio of the number of cards in the first group to the

Naddik [55]

Let the number of cards in each group be 2x and 3x.
So,
2x + 3x = 120
5x = 120
x = 120 / 5
x = 24
Number of cards in each group is
2x = 2 × 24 = 48
3x = 3 × 24 = 72

7 0

3 years ago

-2x + 3x - 5 = 6 - 21 FIND x

trasher [3.6K]

Before we do any solving, we need to simplify both sides.

On the left, we can simplify -2x + 3x - 5 to x - 5.

On the right, we can simplify 6 - 21 to -16.

So we have x - 5 = -16.

Solving from here, we add 5 to both sides to get x = -11.

5 0

3 years ago