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3 years ago

PLZ HELP FAST!!!!!!!!!

Mathematics

1 answer:

tangare [24]3 years ago

4 0

Answer:

-6

-1

Step-by-step explanation:

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Expand and simplify <br> (V5-V2)(V2+V5)

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

$(\sqrt{5} - \sqrt{2})(\sqrt{2} + \sqrt{5})\\\sqrt{5} (\sqrt{2} + \sqrt{5}) - \sqrt{2} (\sqrt{2} + \sqrt{5})\\\sqrt{5} * \sqrt{2} + \sqrt{5} * \sqrt{5} - \sqrt{2} * \sqrt{2} +\sqrt{2} * \sqrt{5}\\ \sqrt{5*2} + \sqrt{5*5} - \sqrt{2*2} - \sqrt{2*5}\\\sqrt{10} + \sqrt{25} - \sqrt{4} - \sqrt{10}$

plus root 10 and minus root 10 gets cancel . So,

$\sqrt{25} - \sqrt{4} \\\sqrt{5^{2} } - \sqrt{2^{2} }$

square and root gets cancel

5 - 2

3 0

3 years ago

PLEASSS HELPPPP

Lera25 [3.4K]

Answer:

-11 + 4

Step-by-step explanation:

When you subtract a negative the sign will switch to plus, so it this case you would switch the - (-4) to a + 4 but you don't change the -11 at the front.

6 0

4 years ago

1 point

Inessa [10]

Answer:

Pattern

Step-by-step explanation:

hope this helps

7 0

3 years ago

If Tim and Terry started to run in opposite directions with the speeds of 90 feet per minute and 11 feet per minute respectively

swat32

You take 90 and multiply it by 18 then add that to 11 multiplied by 18 to get 1818 feet apart

5 0

3 years ago

Read 2 more answers

What is the altitude of an equilateral triangle with a side length of 10 in.

LenaWriter [7]

Good morning,

Answer:

$\frac{\sqrt{3} }{2} a$

Step-by-step explanation:

h = altitude

side = a

using Pythagorean theorem: in the right triangle:

h² = a² - (a/2)²

= a² - a²/4

= 3/4a²

= [(√3/2)×a]²

⇒ h = (√3/2)×a.

6 0

4 years ago

PLZ HELP FAST!!!!!!!!!​

PLZ HELP FAST!!!!!!!!!