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3 years ago

What is 2,153.21 rounded to the hundreds place?

2 answers:

7 0

Find the digit in the hundred's place, which is 1. Look to the number right to the right of it. If it is 5 or greater, it increases. It is 5, so 1 becomes 2. All other digits behind it become 0's. Your answer is 2,200.

adelina 88 [10]3 years ago

4 0

2,200 because the 5 will be rounded up

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NOOO LINKKKSS Chose the three comparisons that are true.

Eva8 [605]

Answer:

A, C and E

Step-by-step explanation:

A. 2.7 > 2.10

C. 6.64 > 6.2

E. 7.4 = 7.40

Thus, The three comparisons that are true is A, C and E

<u>-TheUnknownScientist</u>

5 0

3 years ago

Read 2 more answers

Plz help with full process

BabaBlast [244]

Answer:

$\displaystyle \frac{(a - b)^{2} - {c}^{2} }{{a}^{2} - {(b+ c)}^{2} } + \frac{(b - c)^{2} - {a}^{2} }{{b}^{2} - {(c+ a)}^{2} } + \frac{(c - a)^{2} - {b}^{2} }{{c}^{2} - {(a+ b)}^{2} }=1$

Step-by-step explanation:

<u>Algebra Simplifying</u>

We are given the expression:

$\displaystyle T=\frac{(a - b)^{2} - {c}^{2} }{{a}^{2} - {(b+ c)}^{2} } + \frac{(b - c)^{2} - {a}^{2} }{{b}^{2} - {(c+ a)}^{2} } + \frac{(c - a)^{2} - {b}^{2} }{{c}^{2} - {(a+ b)}^{2} }$

We need to repeatedly use the following identity:

$(a^2-b^2)=(a-b)(a+b)$

For example, the first numerator has a difference of squares thus we factor as:

$(a - b)^{2} - {c}^{2} =(a-b-c)(a-b+c)$

The first denominator can be factored also:

${a}^{2} - {(b+ c)}^{2} = (a-b-c)(a+b+c)$

Applying the same procedure to all the expressions:

$\displaystyle T=\frac{(a - b- c)(a-b+c) }{a-b-c)(a+b+c) } + \frac{(b - c - a)(b-c+a) }{(b-c-a)(b+c+a) } + \frac{(c - a-b)(c-a+b) }{(c-a-b)(c+a+b)}$

Simplifying all the fractions:

$\displaystyle T=\frac{a - b- c}{a+b+c} + \frac{b-c+a}{b+c+a } + \frac{c-a+b }{c+a+b}$

Since all the denominators are equal:

$\displaystyle T=\frac{a - b+ c+b-c+a+c-a+b}{a+b+c}$

Simplifying:

$\displaystyle T=\frac{a +c+b}{a+b+c}$

Simplifying again:

T = 1

Thus:

$\boxed{\displaystyle \frac{(a - b)^{2} - {c}^{2} }{{a}^{2} - {(b+ c)}^{2} } + \frac{(b - c)^{2} - {a}^{2} }{{b}^{2} - {(c+ a)}^{2} } + \frac{(c - a)^{2} - {b}^{2} }{{c}^{2} - {(a+ b)}^{2} }=1}$

8 0

3 years ago

Read 2 more answers

Please help me with this question!!!!!

Naddika [18.5K]

Answer:

Equation of line in slope-intercept form that passes through (4, -8) and is perpendicular to the graph $y= \frac {2}{5} x - 3$ is below

$y = - \frac {5}{2} x + 2$

Step-by-step explanation:

Slope of the equation $y= \frac{2}{5} x -3$ is $m_1 = \frac{2}{5}$

Since slopes of perpendicular lines are negative reciprocal of each other, therefore slope of other line is given as

$m_2 = - \frac {1}{m_1} = - \frac {5}{2}$

Equation of line in point slope form is given as

$y-y_1=m_2(x-x_1)$

Here (x1, y1) = (4, -8)

$y+8 = - \frac{5}{2} (x-4)$

Simplifying it further

$y = - \frac {5}{2} x + \frac {5}{2} 4 - 8$

$y = - \frac {5}{2} x + 2$

6 0

3 years ago

Answer the following question CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!

garri49 [273]

Hi Mimi!

Unit Fraction - is a fraction where the numerator is one and the denominator is a positive integer.

And the best answer that relates to the definition is:

C) A fraction where the top number (the "numerator") is 1

A Metric unit of volume.

Mostly used to measure liquids.

For Example, 1/100, 1/5, and 1/2

Hope This Helps :)

4 0

3 years ago

Read 2 more answers

CAN SOMEONE PLZ HELP ME WITH THIS

pav-90 [236]

Hello,

$5 - 4 + 7x + 1$
$= 7x + 2$

$5 - 4 + 7x + 1 = 0$
$7x = - 2
$
$x = \frac{7}{-2}$

I don't know what i have to do for the last one.

Hope this helps !

Photon

8 0

4 years ago