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3 years ago

6

Which of the fractions is equivalent to? A B C 5 24 D. 10

1 answer:

Korvikt [17]3 years ago

4 0

Huh? Equivalent to what?

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(a + b + c) power of 10 - abc<br><br><br><br> Tip <br> A=1<br> B=2<br> C= -3

kicyunya [14]

$\\ \rm\longmapsto (a+b+c)^{10}-abc$

$\\ \rm\longmapsto (1+2-3)^{10}-(1)(2)(-3)$

$\\ \rm\longmapsto (3-3)^{10}+6$

$\\ \rm\longmapsto 0^{10}+3$

$\\ \rm\longmapsto 0+3$

$\\ \rm\longmapsto 3$

4 0

3 years ago

Read 2 more answers

It takes 3600 person hours to complete a project. How many weeks will it take a team of 15 people to complete the job if each pe

kherson [118]

Answer:

6 weeks

Step-by-step explanation:

x = # of weeks

15 times 8 times 5 = 1 week,

so 15 times 8 times 5 times x = 3600 is the equation

Solve for x to get x = 6

6 0

3 years ago

Given a≠±b and a^2−b^2/a+b =12, find a−b.

11Alexandr11 [23.1K]

$\dfrac{a^2 - b^2}{a+b} = 12$

--------------------------------------------------
Factorise a² - b² :
--------------------------------------------------
$\dfrac{(a+b)(a-b)}{a+b} = 12$

--------------------------------------------------
Crossed out common factors, (x + a) :
--------------------------------------------------
$a- b = 12$

4 0

4 years ago

Read 2 more answers

Plz help.....................

scoray [572]

X^2 - 7x + 12
factors of 12 sum of the factors
1 * 12 13
2 * 6 8
3 * 4 7
-1 * -12 -13
-2 * -6 -8
-3 * -4 -7
(x - 3)(x - 4)
The second option

4 0

4 years ago

PLEASE SOLVE QUESTION 13 AND 14 <br>DONT STEAL THE POINTS

Varvara68 [4.7K]

Answer:

See below for solution.

Step-by-step explanation:

$Q13)$ $\frac{\sqrt{11} - \sqrt{5} }{\sqrt{11}+\sqrt{5} }$ = $x - y\sqrt{55}$

<u>LHS :-</u>

= $\frac{\sqrt{11} - \sqrt{5} (\sqrt{11}-\sqrt{5}) }{\sqrt{11}+\sqrt{5} (\sqrt{11}-\sqrt{5}) }$

= $\frac{11-2\sqrt{55}+5 }{11 - 5}$

= $\frac{16-2\sqrt{55} }{6}$

= $\frac{2(8-\sqrt{55}) }{2(3)}$

= $\frac{8-\sqrt{55} }{3}$

=> x = 8/3 and y = 1/3

=> <u>Option B</u>

<u></u>

<u></u> $Q14)$ $\frac{4}{216^{-2/3} }$ + $\frac{1}{256^{-3/4} }$ + $\frac{2}{243^{-1/5} }$

= 4 x (∛216)² + ( $\sqrt[4]256}$ )³ + 2 x ( $\sqrt[5]{243}$ )

= 4 x 36 + 64 + 2 x 3

= 144 + 64 +6

= 144 + 70

= <u>214</u>

3 0

2 years ago