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2 years ago

What's -5√3(2+√5)? h e l p .

Mathematics

2 answers:

riadik2000 [5.3K]2 years ago

6 0

Here you go hope it helps

Nana76 [90]2 years ago

4 0

Answer:

= -10√3 - √3 . 5^3/2

Step-by-step explanation:

Apply the distributive law: a(b + c) = ab + ac

a = -5 √3, b = 2, c = √5

-5 √3 . 2 + -(5√3) √5

Apply minus-plus rules: + (-a) = -a

= -5 . 2√3 - 5 √3 √5

Simplify

= -10√3 - √3 . 5^3/2

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The ratio of men and women at a class is 6 to 5. how many women are their if their are 3600 men?

umka2103 [35]

Answer:

3,000

Step-by-step explanation:

6:5

1.2( divided 6 by 5):1 (Divide 5 by 5)

3600 divided by 1.2

3,000

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2 years ago

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gayaneshka [121]

Answer:

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2 years ago

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10xy(4xy^3-7xy+9y^2)

Thepotemich [5.8K]

Answer:

$40x^{2} y^{4} -70x^{2} y^{2} +90xy^{3}$

Step-by-step explanation:

$10xy(4xy^{3} -7xy+9y^2)$

1. 10xy · 4xy^3 = $40x^2y^4$

2. 10xy · -7xy = $-70x^{2} y^{2}$

3. 10xy · 9y^2 = $90xy^3$

Final step: add up all of those values together to make an equation!

Answer: $40x^2y^4+$ $-70x^2y^2+$ $90xy^3$

Final Answer: $40x^2y^4-70x^2y^2+90xy^3$

3 0

3 years ago

What is the result of subtracting the second equation from the first?

butalik [34]

Answer:

-5x + 7

Step-by-step explanation:

-4x - 2y = -2

x - 2y = 9

First, you're going to subtract the equations from each other.

(-4x - 2y = -2) - (x - 2y = 9)

Next, you need to get rid of the equal sign in both equations.

(-4x - 2y = -2) - (x - 2y = 9)

+2 +2 -9 -9

After you get rid of the equal signs, you will distribute the sign to the equation and then subtract everything.

-4x - 2y + 2 - x + 2y + 9

Now, combine the like terms.

(-4x -x) + (-2y + 2y) + (2 + 9)

Finally, calculate the terms and solve.

-5x + 7

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2 years ago

Read 2 more answers

The property that justifies the sentence 6a2 + 2a = 2a(3a + 1) is

k0ka [10]

Answer:

The distributive property states that multiply the term outside of the parenthesis by each term in that parenthesis. i.e,

$a \cdot (b+c) = a\cdot b+ a\cdot c$

As per the given statement:

$6a^2+2a = 2a(3a+1)$

Take RHS:

$2a(3a+1)$

Apply the distributive property; we have;

$6a^2+2a$ = LHS

Therefore, the property that justifies the sentence $6a^2+2a = 2a(3a+1)$ is Distributive property

7 0

2 years ago