Ask question

Ask question

All categories

iogann1982 [59]

2 years ago

7

Which step is incorrect and what is the correct answer?

1 answer:

Anit [1.1K]2 years ago

7 0

Answer:

Step 4, x = 3

Step-by-step explanation:

Step 4 was wrong, instead of 6x = 6, it should be 6x = 18. They shoudl've added 6 to both sides instead of subtracting 6 as ur trying to cancel out the 6 on the left side of the equation. So:

6x = 18

x = 3

You might be interested in

Scarlett is trying to find the height of a dam. She stands 90 meters away from the dam and records the angle of elevation to the

adoni [48]

Answer:

45.55 meters

Step-by-step explanation:

I'm guessing she recorded above her height, right?

To find the height of the dam, use the tangent ratio:

$tangentX=\frac{opposite}{adjacent}$

The height of the dam is the side opposite the given angle, and this will represent x. The adjacent side (the hypotenuse is NEVER considered the adjacent side) is the distance from Scarlett to the dam. The angle of elevation is the angle of 26°. Insert the values:

$tan26=\frac{x}{90}$

Solve for x. Multiply both sides by 90:

$90*(tan26)=90*(\frac{x}{90})\\\\90*tan26=x$

Insert equation into a calculator:

$x=90*tan26\\\\x=43.9$

Now add Scarlett's height:

$43.9+1.65=45.55$

The dam is 45.55 meters tall.

<em>Finito</em> :D

6 0

3 years ago

Có 2 xạ thủ cùng bắn vào một con thú, mỗi người bắn một viên đạn. Xác suất bắn trúng đích của xạ thủ thứ nhất và xạ thủ thứ hai

antiseptic1488 [7]

Answer: Nooo

Step-by-step explanation:

6 0

2 years ago

Can anybody help me with this

kondaur [170]

Answer:

c ≈ 9.1 m

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is

c² = 4.1² + 8.1² = 16.81 + 65.61 = 82.42 ( take square root of both sides )

c = $\sqrt{82.42 }$ ≈ 9.1 m ( to the nearest tenth )

5 0

1 year ago

What is the equation of a line perpendicular to y= 3x +6 that crosses the ordered pair (3,2).

jasenka [17]

Answer:

y=- $\frac{1}{3}$ x+3

Step-by-step explanation:

5 0

2 years ago

For every 2 hours that Robert spends studying for a math test he spends 3 hours working on English. If he spends 21 hours one mo

nataly862011 [7]

Answer:

31.5 hours studying English

Step-by-step explanation:

2 math hours = 3 english hours

21 math hours = ? english hours

21/2 = 10.5

10.5 * 3 = 31.5

5 0

2 years ago