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3 years ago

Describe three situations in which rounding could come in handy.

Mathematics

1 answer:

ryzh [129]3 years ago

4 0

Answer:

1. They help you with estimation

2. It makes numbers simpler and easier to do

3. Makes mental maths much quicker

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What is the value of x? __mm

andrezito [222]

Answer:

161.91

Step-by-step explanation:

First find the side length or YT by using the pythagorean theorem.

c= 129.2^2 = 16692.64

b= 68^2=4624

c-b = 12068.64

The square root of 12068.64 is approximately 109.86.

Using that length use the pythagorean theorem again and so:

a = 109.86^2 = 12068.64

c = 57^2 = 3249

a-c = 8819.64

The square root of 8819.64 is approximately 93.91.

So, 68 + 93.91 = 161.91

6 0

3 years ago

LOOK AT THEBLINE PLOT: 0, 1/4, 1/2, 3/4, 1

Sloan [31]

First add them all up.
0+1/4+1/2+3/4+1=2.5
Because there are 5 beakers you divide 2.5 or 2 1/2 by 5 and you get .5 or 1/2
there would be 1/2 water in each beaker.

7 0

3 years ago

5/6 + 3j = -2/3 I need to find the value of j

weeeeeb [17]

5/6 + 3j = -2/3

Multiply all terms by 3.

5/2 = 3j - 2

Multiply all terms by 2.

5 = 6j - 4

Add 4 to both sides.

9 = 6j

Divide both sides by 6.

j = 1.5

8 0

3 years ago

Is a rectangle a polygon?

mihalych1998 [28]

Yes because it has 4 sides

6 0

4 years ago

Read 2 more answers

On Naomi's cell phone plan, the amount she pays each month for international text messages is proportional to the number of inte

Margaret [11]

A) The constant of proportionality in this proportional relationship is $k = \frac{y}{x}$

B) The equation to represent this proportional relationship is y = 0.2x

Solution:

Given that,

The amount Naomi pays each month for international text messages is proportional to the number of international texts she sends that month

Therefore,

This is a direct variation proportion

$\text{ amount paid each month } \propto \text{ number of international texts sent that month}$

Let "y" be the amount that Naomi pays each month

Let "x" be the number of international texts she sends that month

Therefore,

$y \propto x$

y = kx -------- eqn 1

Where, "k" is the constant of proportionality

Thus the constant of proportionality in this proportional relationship is:

$k = \frac{y}{x}$

Last month, she paid $3.20 for 16 international texts

Therefore,

y = 3.20

x = 16

Thus from eqn 1,

$3.20 = k \times 16\\\\k = \frac{3.20}{16}\\\\k = 0.2$

Substitute k = 0.2 in eqn 1

y = 0.2x

The equation would then be y = 0.2x

8 0

4 years ago