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3 years ago

Also how would you round 2.59 to the nearest tenths ?

Mathematics

2 answers:

Strike441 [17]3 years ago

6 0

Answer:

2.6

Step-by-step explanation:

When rounding, if the decimal place after what you are rounding is ≥5, you round up. ≤4, you dont do anything.

Example:

6.37 rounded to the nearest tenth is 6.4 because the 7 in the hundredths place is ≥5

5.32 rounded to the nearest tenth is 5.3 because 2 is ≤5 so we do nothing.

In our problem:

2.59 rounded to the nearest 10th is 2.6 because 9 is ≥5 so we round up.

Maslowich3 years ago

5 0

Answer:

2.6

Step-by-step explanation:

The tenths digit is the 5.

Drop every digit after the 5. You get 2.5

Now you need to see if the 5 stays as it is or if it goes up by 1 to 6.

The first digit after the 5 you dropped is 9. Since 9 is greater than 4, the previous digit goes up by 1, so the 5 becomes a 6.

The final answer is 2.6

You might be interested in

1: Triple the quantity of a number “n” plus 4 equals 27. what would the expression look like?

Diano4ka-milaya [45]

1: Triple the quantity of a number “n” plus 4 equals 27. what would the expression look like?

[ Triple the quantity of a number “n” ] 3n

[ plus 4 ] + 4

[ equals 27 ] = 27

[ all together ] 3n + 4 = 27

Solving:

[ given ] 3n + 4 = 27

[ subtract 4 from both sides ] 3n = 23

[ divide both sides by 3 ] n = 7 $\frac{2}{3}$

2:Seventeen equals seven less than three times a number “n” what would the expression look like?

[ Seventeen equals ] 17 =

[ seven less than ] - 7

[ three times a number “n” ] 3n

[ all together ] 17 = 3n - 7

Solving:

[ given ] 17 = 3n - 7

[ add 7 to both sides ] 24 = 3n

[ divide both sides by 3 ] 8 = n

Have a nice day!

I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

6 0

3 years ago

If you vertically compress the absolute value parentsl function, f(x)=|x| by a factor of 4 what is the equation if thr new funct

noname [10]

C if it talks about factor we think that y=0 so the answer is C

4 0

4 years ago

Need help with this question plzzz

marishachu [46]

Answer:

134or 2334

Step-by-step explanation:

8 0

3 years ago

… Please help I don’t understand

kondor19780726 [428]

9514 1404 393

Answer:

18. x = {0, π/3, π, 5π/3, 2π}

19. x = {0, 2π}

Step-by-step explanation:

You're supposed to use what you know about equation solving and trig functions to find the values of x that make these equations true. When the equation has a degree other than 1, you may need to use what you know about factoring and/or solving quadratic equations.

Inverse trig functions are helpful, but they don't always tell the whole story. You need to understand the behavior of each function over its whole period.

18. This equation is easily factored.

-2sin(x)(1 -2cos(x)) = 0

The zero product rule tells you the product of these factors is zero only when one or more of the factors is zero. In other words, this resolves into the equations ...

sin(x) = 0
1 -2cos(x) = 0

Your knowledge of the sine function tells you the solutions to the first of these equations is x = 0, π, 2π. (in the range 0 ≤ x ≤ 2π)

The second equation can be rewritten as ...

1 = 2cos(x)

1/2 = cos(x)

Your knowledge of the cosine function tells you this is true for ...

x = π/3, 5π/3

So, all of the solutions to the given equation are ...

x = {0, π/3, π, 5π/3, 2π}

19. Here, it is convenient to use a trig identity to make all of the variable terms be functions of the cosine.

sin(x)² = 1 - cos(x)² . . . . the trig identity we need

2 -(1 -cos(x)²) = 2cos(x) . . . . substitute for sin(x)²

1 + cos(x)² = 2cos(x) . . . . . . . simplify

cos(x)² -2cos(x) +1 = 0 . . . . . subtract 2cos(x), write as a quadratic in cos(x)

(cos(x) -1)² = 0 . . . . . . . . . . . factor (recognize the perfect square trinomial)

cos(x) = 1 . . . . . . . . . . . . . . take the square root, add 1

x = 0, 2π . . . . . . . . values of x for which this is true

_____

The attachments show the solutions found using a graphing calculator. When solving these by graphing, it is generally most convenient to rewrite the equation to the form f(x) = 0. This can be done by subtracting the right-side expression, for example, as we did in the second attachment. That way, the solutions are the x-intercepts, which most graphing calculators can find easily.