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3 years ago

Select all equations where r=3 is a solution

Mathematics

1 answer:

belka [17]3 years ago

5 0

Answer:

the first equation

Step-by-step explanation:

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PLS HELP!! LOOK AT PICTURE!<br> Find the value of x in the similaur figures.

MAXImum [283]

Answer:

x=7

Step-by-step explanation:

14/28=x/14

x=7

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2 years ago

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The diagrams show a right angled triangle and a rectangle.

Mrrafil [7]

Answer:

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2 years ago

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The equation is________<br> Solve the equation x=________

Komok [63]

Answer:

7x-5 = 9

x = 2

Step-by-step explanation:

Let x be the number

7x-5 = 9

Add 5 to each side

7x-5+5 = 9+5

Divide each side by 7

7x = 14

7x/7 = 14/7

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3 years ago

Find the area. Please help

Nutka1998 [239]

The answer to your question is 77 because the formula for area for a triangle is A=1/2BH and the base is 11 feet and the height is 14 feet. So, (14•11)/2 is 77. Therefore, 77 squared feet is the answer.

6 0

3 years ago

Factor 2m^3-12m^2+18m completely

Nina [5.8K]

Answer:

The answer is A.

Step-by-step explanation:

Firstly, you have to take out the common terms for this expression. In this expression, the common terms ard 2 and m :

$2 {m}^{3} - 12 {m}^{2} + 18m$

$= 2( {m}^{3} - 6 {m}^{2} + 9m)$

$= 2m( {m}^{2} - 6m + 9)$

Next you have to factorise the brackets :

${m}^{2} - 6m + 9$

$= {m}^{2} - 3m - 3m + 9$

$= m(m - 3) - 3(m - 3)$

$= (m - 3)(m - 3)$

$= {(m - 3)}^{2}$

So the final answer is :

$2m {(m - 2)}^{2}$

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3 years ago

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