3 years ago

Solve for y: 6x-2y= -8

Mathematics

1 answer:

Jlenok [28]3 years ago

4 0

Move all terms that don't contain y to the right side and solve y=3x+4

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Question 12 (1 point)

nadya68 [22]

Answer: 7sqrt(3), 14

Step-by-step explanation:

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3 years ago

Please I’m way lost on this one need help please

liq [111]

I would go with A. The exact answer is 1/11

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3 years ago

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a vertical pedestal stands on the ground and is surmounted by a vertical flag staff of height 5 m.At a point on the ground the a

Scilla [17]

Answer:

2.5 ft

Step-by-step explanation:

The figure for the given scenario is shown below.

There are two right angled triangles, ΔACD and ΔBCD

The height of flag staff is represented by segment AB, BC is the height of pedestal stand , D is a point on the ground that makes angles 30° and 60° with the bottom and top of staff at B and A respectively.

AB = 5 ft. Let the height of pedestal stand be $x$ ft and the distance of point D from the bottom of stand be $y$ ft as shown in the figure.

Now, from ΔACD,

$tan(60)=\frac{AC}{CD}\\ \sqrt{3}=\frac{5+x}{y}\\ \sqrt{3}y=5+x$

From ΔBCD,

$tan(30)=\frac{BC}{CD}\\\frac{1}{\sqrt{3}}=\frac{x}{y}\\y=\sqrt{3}x$

Plug in the value of $y$ in the first equation and solve for $x$ .

$\sqrt{3}y=5+x\\\sqrt{3}(\sqrt{3}x)=5+x\\3x=5+x\\2x=5\\x=\frac{5}{2}=2.5 \textrm{ ft}$ .

Therefore, the height of the pedestal stand is 2.5 ft.

7 0

3 years ago

Look at the table of values below. What is the missing term?<br><br> x 0 1 2 3 4 <br> y -2 -1 2 7 ?

Drupady [299]

The missing value in the table provided is 14.

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3 years ago

If six costs 2.50 what does one cost

Sergio039 [100]

2.50/6 = .48

one would cost .48

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3 years ago

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