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3 years ago

9

What are the missing numbers?

2 answers:

pashok25 [27]3 years ago

7 0

2.089 and 2.095 because it goes by thousandths.

kogti [31]3 years ago

5 0

2.09+10x=2.1

10x=0.01

x=0.001

so each tick mark is equal to 0.001 in distance.

So the first box is 2.09-.001=2.089

And the second box is 2.09+5(.001)=2.095

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aliya0001 [1]

Sin C= 3/5
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2 years ago

A.) Write an exponential expression: choose a prime number between 2 and 10 to be the base, and an even between 0 and 10, to be

Slav-nsk [51]

Answer:

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Step-by-step explanation:

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EastWind [94]

Answer:

It's true

Step-by-step explanation:

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2 years ago

Factorize 2a^2+7a-15

loris [4]

$\huge\bf \pink {\underline{Solution :-}}$

$2 {a}^{2} + 7a - 15$

$= 2 {a}^{2} + 10a - 3a - 15$

$= 2a(a + 5) - 3(a + 5)$

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$\sf \red{Hence, Answer \: is \: (a + 5)(2a - 3).}$

$\\$

$\bf \purple{ \underline{ Important \: Formulas \: for \: Factorization :-}}$

$• \: {a}^{2} + 2ab + {b}^{2} = {(a + b)}^{2}$

$• \: (a + b)(a - b) = {a}^{2} - {b}^{2}$

$• \: {a}^{2} - 2 ab + {b}^{2} = {(a - b)}^{2}$

$• \: {a}^{3} + 3 {a}^{2} b + 3a {b}^{2} + {b}^{3} = {(a + b)}^{3}$

$• \: {a}^{3} - 3 {a}^{2} b + 3a {b}^{2} - {b}^{3} = {(a - b)}^{3}$

$• \: {(a + b)}^{2} + {(a - b)}^{2} = 2( {a}^{2} + {b}^{2} )$

$• \: {(a + b)}^{2} - {(a - b)}^{2} = 4ab$

$• \: (a + b)( {a}^{2} -ab + {b}^{2} ) = {a}^{3} + {b}^{3}$

$• \: (a - b)( {a}^{2} + ab + {b}^{2} ) = {a}^{3} - {b}^{3}$

$• \: {( \frac{a + b}{2} )}^{2} - ( {\frac{a - b}{2} } )^{2} = ab$

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algol13

Answer:

Step-by-step explanation:

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