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2 years ago

Whoever helps me ill mark brainliest

Mathematics

1 answer:

Kay [80]2 years ago

3 0

For 12 it’s will always be 0 because it is in the middle, for 360 I think it’s -90 that’s all I know I don’t know for sure if this is correct tho

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3 • 4/12 to the simplest form

beks73 [17]

9 because you would turn 4 12 in simplest form the times it by 3

3 0

3 years ago

Find the length of the chord made by 3x2 - y2 = 3 and y + x – 5 = 0.

MArishka [77]

Answer:

The correct answer is "9√2 units".

Step-by-step explanation:

The given equations are:

⇒ $3x^2-y^2=3$ ...(equation 1)

⇒ $y+x-5=0$ ...(equation 2)

According to the 2nd equation, we get

⇒ $y+x-5=0$

⇒ $y=5-x$

On substituting the value of "y" in the 1st equation, we get

⇒ $3x^2-y^2=3$

$3x^2-(5-x)^2=3$

$3x^2-(25+x^2-10x)=3$

$2x^2+10x-28=0$

On taking common, we get

$x^2+5x-14=0$

On applying factorization, we get

$x^2+7x-2x-14=0$

$x(x+7)-2(x+7)=0$

$(x+7)(x-2)=0$

$x+7=0$

$x=-7$

or,

$x-2=0$

$x=2$

Now,

The points are:

(-7, 12) = (x₁, y₁)

(2, 3) = (x₂, y₂)

By using the distance formula, the length of chord will be:

= $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

On substituting the values in the above formula, we get

= $\sqrt{(2-(-7))^2+(3-12)^2}$

= $\sqrt{(9)^2+(-9)^2}$

= $\sqrt{81+81}$

= $9 \sqrt{2}$ units

8 0

2 years ago

What is f(4) if f(x)=|3x+4|-2

alex41 [277]

Okay so just put the 4 in for x
and multiply

5 0

2 years ago

Will mark 5 stars

lyudmila [28]

R is also known as the correlation coefficient. Hence your statement is ...
B. False

8 0

3 years ago

Please please help i’ll give brainliest tysm :)

Neko [114]

Answer:

C) Between 9 and 13

Step-by-step explanation:

If 40% is 5 gallons, then 20% is 2.5 gallons

If you multiply both by 5, you get 12.5, which is between 9 and 13

Sorry for my weird way of math

3 0

2 years ago

Read 2 more answers

Whoever helps me ill mark brainliest​

Whoever helps me ill mark brainliest