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Alekssandra [29.7K]
2 years ago
5

Find k. Write your answer in simplest radical form.

Mathematics
1 answer:
telo118 [61]2 years ago
4 0

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Let's solve ~

The given triangle is a right angled Triangle, so we can apply Trigonometric relations to find the required result ;

That is :

\qquad \sf  \dashrightarrow \:  \sin(45 \degree)  =  \dfrac{2}{k}

\qquad \sf  \dashrightarrow \:  \dfrac{1}{ \sqrt{2} }  =  \dfrac{2}{k}

\qquad \sf  \dashrightarrow \: k = 2 \sqrt{2}

So, the value of k is 2\sqrt{}{2} miles

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Order from least to greatest [-2,4,23,-1,5,-3,6] absolute number
mihalych1998 [28]

Answer:

-3 < -2 < -1 < 4 < 5 < 6 < 23

Step-by-step explanation:

Im really sorry if im wrong

4 0
3 years ago
Is 1 hour is 9 miles, how many hours is 15 miles?<br><br> 1 hr = 9 mi<br><br> __hr = 15 mi
lana66690 [7]
1.67 hr or 1 and 2/3 hours
3 0
3 years ago
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Write an equation of the line containing the point (6,-4) and perpendicular to.the line y=-2x-3
igor_vitrenko [27]

Answer:

y=\frac{1}{2}x-7

Step-by-step explanation:

So we need to find an equation of a line that crosses the point (6,-4) and is perpendicular to y = -2x -3.

First, let's find the slope of the line we want to write. The line we want is perpendicular to y = -2x -3. Recall that if two lines are perpendicular to each other, their slopes are negative reciprocals of each other. What this means is that:

m_1\cdot m_2=-1

Plug -2 for one of the slopes.

-2\cdot m_2=-1

Divide by -2 to find the slope of our line.

m_2=1/2

Thus, our line needs to have a slope of 1/2.

Now, let's use the point-slope form. The point-slope form is given by:

y-y_1=m(x-x_1)\\

Plug in 1/2 for the slope m and let's let our point (6,-4) be x₁ and y₁. Thus:

y-(-4)=\frac{1}{2}(x-6)\\

Simplify and distribute:

y+4=\frac{1}{2} x-3

Subtract 4 from both sides:

y=\frac{1}{2}x-7

The above is the equation that passes the point (6,-4) and is perpendicular to y = -2x -3.

5 0
3 years ago
The blueprint of a pool has a scale of 2 inches equals 7 feet. The scale drawing is shown below. the length is 20 and the width
AlladinOne [14]

Answer:

Part A:

Blueprint 10 inches ⇒ Actual 35 feet

Blueprint 20 inches ⇒ Actual 70 feet

Part B:

The cost of the cover is $857.5

Step-by-step explanation:

Part A:

∵ The drawing scale is 2 inches for 7 feet

∵ The length = 20 inches and the width = 10 inches

∴ The actual length = (20 × 7) ÷ 2 = 70 feet

∴ The actual width = (10 × 7) ÷ 2 = 35 feet

Part B:

∵ The cost per square foot = $0.35

∵ The area of the pool = 70 × 35 = 2450 feet ²

∴ The cost of the cover = 2450 × 0.35 = $857.5

8 0
3 years ago
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12.5 feet

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Here the answer

5 0
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