3 years ago

Do anyone knows how to do this? X= -2

Mathematics

2 answers:

grigory [225]3 years ago

8 0

sorry its too difficult

eimsori [14]3 years ago

4 0

Answer:

nustiu scz

Step-by-step explanation:

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Harrizon [31]

Answer:

is x = 2

Step-by-step explanation:

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3 years ago

What is 3/tan(30°) in radical form? (meant to be a fraction)

Kitty [74]

$\bf y=\cfrac{3}{tan(30^o)}\implies y=\cfrac{3}{\frac{sin(30^o)}{cos(30^o)}}\implies y=\cfrac{3}{\frac{\quad \frac{1}{2}\quad}{\frac{\sqrt{3}}{2}} }\implies y=\cfrac{3}{\frac{1}{2}\cdot \frac{2}{\sqrt{3}}}
\\\\\\
y=\cfrac{3}{\quad \frac{1}{\sqrt{3}}\quad }\implies y=\cfrac{3}{1}\cdot \cfrac{\sqrt{3}}{1}\implies y=3\sqrt{3}$

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3 years ago

What is the value of 3x2 - 5xy + 5y2 for x = -6 and y = 2?

VMariaS [17]

I assume you mean:
3x^2 -5xy + 5y^2.

Simply substitute the given values into the equation:

3(-6)^2 - 5(-6)(2) + 5(2)^2

=188

8 0

4 years ago

Read 2 more answers

6(3x - 7) = 2

Svet_ta [14]

Answer:

distribute first so it would be 18x-42=2

Step-by-step explanation:

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3 years ago

A family has 4 boys and the family determines this as unusual.

Svetllana [295]

Answer: (1 in 16 chance)

Step-by-step explanation: make in a paper a line that becomes 2 lines and keep doing it until you have 16 lines and every line you do like 1boy 0girl and 0boy 1girl and keep doing it and you will have 1 of 16 being 4boys

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3 years ago