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3 years ago

Tell me about what you know about "Rounding"

Mathematics

2 answers:

miv72 [106K]3 years ago

8 0

Answer:

Rounding is about estimating

Step-by-step explanation:

Rounding is finding the number that it is close to. It makes solving problems easier and once you understand it, it helps A LOT with estimating.

user100 [1]3 years ago

4 0

It is finding the closest estimate to number. Rounding is used in everyday calculations and in many different fields of work

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9/10 = z/8 round to the nearest tenth

jeka57 [31]

9/10 = z/8

cross multiply

9/10(10)(8) = z/8(8)(10)

9(8) = z(10)

72 = 10z

Isolate the z, divide 10 from both sides

72/10 = 10z/10

z = 72/10

z = 7.2

7.2, or D) is your answer

hope this helps

4 0

3 years ago

PLEASE HELPPPPP<br> M=2<br> N=16<br> P=1/3

andre [41]

Answer:

Step-by-step explanation:

Based on the information you have given me, p = 1/3.

All we need to do is substitute that value into the expression:

12p = 12(1/3) = 4

4 0

3 years ago

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The scatter plot with trend line below shows the data comparing wind speed and wind

natulia [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

F(x) = -4x2 + 12x – 9

DochEvi [55]

Answer:

$D = 0$

The graph has 1 x-intercept

Step-by-step explanation:

Given

$f(x) = -4x^2 + 12x - 9$

Required

- Discriminant of f

- Number of x intercepts

Let D represent the discriminant;

D is calculated as thus

$D = b^2 - 4ac$

Where a, b and c are derived from the following general format;

$f(x) = ax^2 + bx +c$

By comparing $f(x) = ax^2 + bx +c$ with $f(x) = -4x^2 + 12x - 9$

We have

$f(x) = f(x)\\ax^2 = -4x^2\\bx = 12x\\c = -9$

Solving further;

$a = -4\\b=12\\c=-9$

So, D can now be calculated;

$D = b^2 - 4ac$ becomes

$D = 12^2 - 4 * -4 * -9$

$D = 144 - 144$

$D = 0$

Hence, the discriminant of f is 0

From the value of the discriminant, we can determine the number of x intercepts of the graph;

When D = 0, then; there exists only one x-intercept and it as calculated as thus

$x = \frac{-b}{2a}$

Recall that

$a = -4\\b=12\\c=-9$

So, $x = \frac{-b}{2a}$ becomes

$x = \frac{-12}{2 * -4}$

$x = \frac{-12}{-8}$

$x = \frac{12}{8}$

$x =1.5$

8 0

3 years ago

If 25.20 cost for a pack of 9 padlocks how much is it for a per padlocks

pickupchik [31]

Answer:

$2.80

Step-by-step explanation:

25.20 ÷ 9 = $2.80

3 0

3 years ago

Read 2 more answers