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mixas84 [53]
3 years ago
9

1.4t-0.4(t-3.1)=5.8 please help !!

Mathematics
1 answer:
Svetllana [295]3 years ago
4 0
Okay so i cant just post what the answer is i have to type something.
but anyways this is the answer: t= 4.56
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Mama L [17]

Answer:

a = 6*\sqrt{3}

b = 12

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Step-by-step explanation:

Since the triangles are right triangles with 60 and 45 degree angles, their side lengths follow special triangles.

A 45-45-90 right triangle has side lengths 1-1-\sqrt{2}.

A 30-60-90 right triangle has side lengths 1 - \sqrt{3} -2.

Starting with the top triangle which has a 60 degree angle, its side length 6 corresponds to a side length of 1 in the special triangle. It is 6 times bigger so its remaining sides will be 6 times bigger too.

Side a corresponds to side length \sqrt{3}. Therefore, a = 6*\sqrt{3}.

Side b corresponds to side length 2, b = 2*6 = 12.

The bottom triangle has a 45 degree angle, its side length b= 12 corresponds to \sqrt{2}. This means \sqrt{2} was multiplied by 12 = \sqrt{2} * \sqrt{72}. This means that side c is \sqrt{72}=6\sqrt{2}.

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Kelly drew the angle shown, <br> which value is closest to measurement of Kelly's angle?
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Step-by-step explanation:

it's an acute angle so it couldn't be 110 since that would make it obtuse.

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How to write a word sentence for x-14=52
Ksju [112]
X - 14 = 52

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Step-by-step explanation:

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(5 points)
Schach [20]

Answer:

The original Slope is y=-1/3x-2

The perpendicular slope would be y=3x+b

Step-by-step explanation:

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You already have the y-interecpet, (0,-2), and you know two points (0,-2) and (-6,0), so you can find the slope with (y1-y2)/(x1-x2) so in this case, it would be (0-(-2))/(-6-0)= -1/3 and you can find y=1/3x-2.

Perpendicular Slope:

The slope of any perpendicular line would be the reciprocal of the original. So the reciprocal of -1/3 is 3. The b can be any real number because no matter the y-intercept the slope would still be perpendicular

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3 years ago
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