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deff fn [24]
2 years ago
8

le="\sf\large\green{\underbrace{\red{Question*}}}:" alt="\sf\large\green{\underbrace{\red{Question*}}}:" align="absmiddle" class="latex-formula">
Factorize
4 {a}^{2}  -  \frac{ {y}^{2} }{16}
​
Mathematics
1 answer:
astraxan [27]2 years ago
6 0

Answer:

(2a - \frac{y}{4} )(2a + \frac{y}{4} )

Step-by-step explanation:

4a² - \frac{y^2}{16} ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

4a² - \frac{y^2}{16}

= (2a)² - (\frac{y}{4} )²

= (2a - \frac{y}{4} )(2a + \frac{y}{4} )

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NO LINKS!!! Find the measurement indicated. Round your answer to the nearest tenth.<br><br>​
My name is Ann [436]

Answer:

<u>Solutions given;</u>

<u>Using cosine rule</u>

b²=a²+c²-2*a*c*cos B°

b²=15²+8²-2*15*8*cos39

b²=102.48

b=\sqrt{102.48}

b=10.12

b=10.1

<u>Using sine rule</u>

\frac{sin A}{BC} = \frac{sin B}{AC}  =\frac{sin C}{AB}

\frac{sin 29°}{15}  =\frac{sin C}{8}

<u>Doing criss cross multiplication</u>

Sin C=\frac{sin 29°}{15} ×8

m<C=Sin -¹(0.29)

m<C=14.98

<u>m<C=15°</u><u>is</u><u> </u><u>a</u><u> </u><u>required</u><u> </u><u>answer</u><u>.</u>

4 0
3 years ago
X/x+1-1/x-1+2x/x^2-1
Dvinal [7]

Answer:

Input:

x/x + 1 - 1/x - 1 + 2×x/x^2 - 1

Result:

1/x

7 0
3 years ago
Factorise x squared + 3x + 2​
Zielflug [23.3K]

Answer:

(x + 2)(x + 1)

Step-by-step explanation:

by factorising ;

=》

{x}^{2}  + 3x  + 2

=》

{x}^{2}  + 2x + x + 2

=》

x(x + 2) + 1(x + 2)

=》

(x + 2)(x + 1)

<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

8 0
3 years ago
harriet is 2 years less than a thirnd of her brothers ace. Harriet is 3 years ols. How old is her brother?​ please help right no
enyata [817]

Answer:

her brother is 15 years old

Step-by-step explanation:

let 'b' = her brother's age

Harriet is 3 years old but Harriet is also '1/3b - 2'

3 = 1/3b - 2

5 = 1/3b

b = 5(3) or 15

5 0
3 years ago
What are the solutions to the equation? use the quadratic formula to solve the equation. 2y²-10y+8=0
Ludmilka [50]
The answer is D for this one
4 0
3 years ago
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