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Nadya [2.5K]
3 years ago
8

571428 to nearest tenth

Mathematics
1 answer:
vichka [17]3 years ago
4 0
Thw answer is 571430 because 28 rounds to 30
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Combine like terms.<br> 9y2 + 9(7y2-5) =<br> I need this for now please
nataly862011 [7]

Answer:

72y2-45

Step-by-step explanation:

9y2 + 9(7y2 - 5)

you multiply the 9 by the stuff in the parentheses

9y2 + 63y2 - 45

72y2-45

7 0
3 years ago
48% = StartFraction 48 Over 100 EndFraction = StartFraction a Over 25 EndFraction<br><br>a = <br>​
Sunny_sXe [5.5K]

Answer:

12 over 25

Step-by-step explanation:

48 over 100 = 12 over 25

3 0
3 years ago
A regular polygon has an exterior angle of 40
Viefleur [7K]

Answer:

9 sides

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The sum of the exterior angles of a polygon = 360°

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6 0
3 years ago
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If the circumference of a circle is about 15.4 cm, estimate to the nearest whole number the diameter of the circle
nasty-shy [4]

The nearest whole number the diameter of the circle is 5.0 cm.

<u>Given the following data:</u>

  • Circumference of a circle = 15.4 cm

To estimate to the nearest whole number the diameter of the circle:

In this exercise, you're required to solve for the diameter of a circle and round up its value to the nearest whole number.

<h3>How to calculate the circumference of a circle.</h3>

Mathematically, the circumference of a circle is given by the formula:

Circumference = \pi D

<u>Where:</u>

  • D is the diameter of a circle.

Making D the subject of formula, we have:

D =\frac{circumference}{\pi}

Substituting the given parameters into the formula, we have;

D =\frac{15.4}{3.142}

D = 4.90 cm

To the nearest whole number:

D = 4.90 ≈ 5.0 cm

Read more on circumference of a circle here: brainly.com/question/14478195

6 0
2 years ago
What is the distance between (6, 4) and (8, -5)?
MrRissso [65]

Answer:

9.21 units

Step-by-step explanation:

Let d be the distance between given points.

\therefore \: d =  \sqrt{ {(6 - 8)}^{2}  +  { \{4 - ( - 5) \}}^{2} }  \\  \hspace{16 pt}=  \sqrt{ {( - 2)}^{2}  +  { \{4  +  5 \}}^{2} }  \\\hspace{16 pt} =  \sqrt{ {( - 2)}^{2}  +  { \{9 \}}^{2} }  \\ \hspace{16 pt}=  \sqrt{ 4  +  81}  \\\hspace{16 pt} =  \sqrt{ 85}  \\  \hspace{16 pt}= 9.21954446 \\  \:  \:  \:  \:  \:   \purple{ \bold{d = 9.21 \: units }}\\  \\

6 0
4 years ago
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