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otez555 [7]
3 years ago
12

How do I solve this please?

Mathematics
1 answer:
djyliett [7]3 years ago
7 0

Answer:

given us,

n=4

here

3^-n+1-3^-n+2

3^-4+1-3^-4+2

-4+1-4+2

-5

Step-by-step explanation:

we can put value in n .we can power add and subtract then we can cut 3 then power we can add or subtract

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A family consumes 5/8 of a one gallon container of milk every three days worth of milk every three days. How much milk does the
GenaCL600 [577]

Essentially what you're given is the following

[total gallons for the specified time] = [gallons]*[days]\\

The easiest way to approach this problem is to use the given information to find the amount of milk the family consumes over the course of a day.

\frac{5}{8} = g*3\\\\\frac{5}{8} = 3g\\\\\frac{5}{8 * 3} = g\\\\g = \frac{5}{24}

So now that we know that the family drinks \frac{5}{24} gallons of milk each day, we can multiply by the desired amount of days to discover how much milk the family drinks over that period of time.

g = \frac{5}{24} * days\\g = \frac{5}{24} * 4\\g = \frac{20}{24}\\g = \frac{5}{6}

So from this, we now know that the family drinks \frac{5}{6} gallons of milk over the course of 4 days.

4 0
3 years ago
Find the measures of each numbered angles
ZanzabumX [31]

Answer:

∠ 1 = 109° , ∠ 2 = 29° , ∠ 3 = 71°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , then

∠ 1 + 35° + 36° = 180°

∠ 1 + 71° = 180° ( subtract 71° from both sides )

∠ 1 = 109°

-------------------

∠ RVU and ∠ 1 are adjacent angles on a straight line and sum to 180° , then

∠ RVU + ∠ 1 = 180°

∠ RVU + 109° = 180° ( subtract 109° from both sides )

∠ RVU = 71°

In Δ RVU

∠ 2 + 80° + 71° = 180° ( sum of angles in triangle )

∠ 2 + 151° = 180° ( subtract 151° from both sides )

∠ 2 = 29°

-------------------------

∠ 3 and ∠ RVU are vertically opposite angles and are congruent , then

∠ 3 = 71°

4 0
3 years ago
Read 2 more answers
On the same grid draw, draw the graph of y= x - 1
Gala2k [10]
You should shift your normal y=x graph down 1 space
5 0
3 years ago
Andrew is 61 years. Erica is 31 years old. how many years ago was Andrew’s age 4 times Erica’s age
kozerog [31]

Answer:

21 Years Ago

Step-by-step explanation:

61 - 21 = 40

31 - 21 = 10

40/10 = 4

4 0
3 years ago
Approximate -10 + √30 to the nearest tenth.<br> O-5.5<br> O-4.5<br> 04.5<br> O5.5
xxTIMURxx [149]

Answer:

  (b)  -4.5

Step-by-step explanation:

Choosing the correct answer here is not the same as knowing what the correct value is.

<h3>Estimate</h3>

You know that √30 < √100 = 10, so the sum must be negative. That is, 10 subtracted from a positive number less than 10 will give a negative result.

You know that 25 < 30 < 36, so √25 < √30 <√36. That is, √30 will be between 5 and 6. If we say √30 ≈ 5.5, then the sum is ...

  -10 +√30 ≈ -10 +5.5 = -4.5

__

<em>Additional comment</em>

Of course, a calculator can tell you the value to the desired precision.

5 0
1 year ago
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