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2 years ago

HELP!!! PLEASE!!!!!!!!!!

Mathematics

2 answers:

faust18 [17]2 years ago

8 0

Hi! You have to put the protractor on the middle dot to figure it out. I can’t figure it out because of that. Good luck!

sveta [45]2 years ago

6 0

Sorry but I see that you can use the “interactive protractor” and see how many degrees the angle is. But all I can tell you is that it’s an acute angle

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Jose takes a job that offers a monthly starting salary of $2500 and guarantees him a monthly raise of 130$ during his first ye

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3 years ago

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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

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2 years ago

The ticket booth at a school play sells 216 adult tickets and 162 student tickets. Find the ratio of adults to students. Write y

Svetllana [295]

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3 years ago

Eamon wants to buy a new baseball glove that cost 50$ he has 14$ and he earns 6$ per hour cleaning yards. how many hours must he

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

6x+14=50

(6x is hourly wage, x being the hours, 14 is the amount he started with, and 50 is what he needs)

6x=36

x=6 hours

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3 years ago

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