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3 years ago

8

Thx for helping if u do

1 answer:

Fofino [41]3 years ago

5 0

It will be option B.

On the Moon, we weigh 1/6th of our weight, which basically means that our weight on the moon (m) is equal to our weight on Earth (e) divided by 6.

Therefore, m=e/6

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Factorize 2a^2+7a-15

loris [4]

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

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

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

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

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

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

$\\$

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

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

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

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

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

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

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

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

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

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

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

5 0

3 years ago

Read 2 more answers

The trip from Carville to Planesborough takes 4 1/2 hours when traveling at a constant speed of 70 miles per hour. How long, in

gregori [183]

Answer:

5h 15 min

Step-by-step explanation:

70 mph * 4,5 = 315 miles

315 / 60 = 5,25h

5,25h = 5 1/4h = 5h 15 min

5 0

2 years ago

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The Mariana Trench in The Pacific Ocean is about 36,201 feet deep. Based on these data how many feet deeper is the marina trench

Mazyrski [523]

Answer:

The answer is 27,493 Puerto Rico Trench Depth Deepest Point In the Atlantic Ocean

Step-by-step explanation:

8 0

3 years ago

Which angles are pairs of corresponding angles? Check all that apply.

nevsk [136]

Answer: The pair of corresponding angles are ∠2 and ∠14 , ∠3 and ∠7 . Option (B) and (D) is correct . When two lines are parallel to each other and cross by another line i.e is called the Transversal , the angles lies in the matching corners are called corresponding angles.

hope it helps!!

7 0

3 years ago

Using the graphing function on your calculator, find the solution to the system

stealth61 [152]

Answer:

It has infinite solutions.

D. More than 1 solution

Step-by-step explanation:

$\left \{ {{3y - 9x = -6} \atop {5y - 15x = -10}} \right.$

$\left \{ {{3y(-5) - 9x(-5) = -6(-5)} \atop {5y(3) - 15x(3) = -10(3)}} \right.$

$\left \{ {{-15y +45x = 30} \atop {15y - 45x = -30}} \right.$

$0+0=0$

or

$5y = 15x - 10\\y = 3x - 2$

$3(3x-2) - 9x = -6$

$0=0$

8 0

2 years ago