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Crazy boy [7]
3 years ago
10

When the sun has risen 32 degrees above the horizon, Sandy casts a shadow that is 9 feet 2 inches long. How tall is Sandy, to th

e nearest inch?

Mathematics
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:

The height of Sandy is 68.74 inches.

Step-by-step explanation:

It is given that the sun has risen 32 degrees above the horizon. It means the angle of elevation is 32°.

Let the height of Sandy be x.

Sandy casts a shadow that is 9 feet 2 inches long.

We know that 1 feet = 12 inches

Using this conversion, we get

Shadow = 9 feet 2 inches = 9(12)+2 = 110 inches

In a right angled triangle,

\tan\theta =\frac{perpendicular}{base}

In triangle ABC,

\tan(\angle C)=\frac{AB}{BC}

\tan(32^{\circ})=\frac{x}{110}

Multiply both sides by 110.

110\tan(32^{\circ})=x

68.73562871=x

x\approx 68.74

Therefore the height of Sandy is 68.74 inches.

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1/3 + a =5/4 a=<br><br> what does a = i really need help this means a lot to my grade
Katyanochek1 [597]

Answer:

a = 11/12

Step-by-step explanation:

1/3 + a =5/4

Subtract 1/3 from each side

1/3-1/3 + a =5/4-1/3

a = 5/4 -1/3

Get a common denominator of 12

a = 15/12 - 4/12

a = 11/12

4 0
3 years ago
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At a country concert, the ratio of the number of boys to girls is 2:7. If there are 250 more girls than boys, how many boys are
allsm [11]
We can setup an equation for this.

Boys to Girls = 2:7
Boys =  x
Girls = 250+x
Setup the ratio 
 x:(250+x) = 2:7
x / (250+x) = 2/7
7x = 500+2x
7x-2x = 500
x = 500/5 =100

There are 100 boys at the concert
6 0
3 years ago
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WILL GIVE BRAINLIEST AND 30 POINTS! SHOW WORK!
MA_775_DIABLO [31]

Answer:

this is true yung blood

Step-by-step explanation:

cause this is why 8839?/+ienjnciwj[2i0392 = TRUE

3 0
3 years ago
What is the degree of each monomial?
babymother [125]
The answer is B. 11

If the polynomial contains more than one variable, then the degree of the monomial is equal to the sums of all their exponents. 6+5 = 11

<span>Thank you for posting your question. I hope you found you were after. Please feel free to ask me another.</span>

6 0
3 years ago
Solve the inequality and express your answer in interval notation. x^2+6x+7&lt;0
d1i1m1o1n [39]
<h2>Hello!</h2>

The answer is:

The interval notation will be:  (-∞,-1.59) and (-4.41,∞+)

<h2>Why?</h2>

To solve the expression, we need to perform the following steps:

- Find the roots or zeroes of the expression:

Using the quadratic equation, we have:

\frac{-b+-\sqrt{b^{2}-4*a*c } }{2*a}

We are given the quadratic expression:

x^{2} +6x+7

Where,

a=1\\b=6\\c=7

Then, substituting and calculating we have:

\frac{-6+-\sqrt{6^{2}-4*1*7 } }{2*1}=\frac{-6+-\sqrt{36-28 } }{2}\\\\\frac{-6+-\sqrt{36-28}}{2}=\frac{-6+-\sqrt{8}}{2}\\\\x_{1}=\frac{-6+\sqrt{8}}{2}=\frac{-6+2.82}{2}=-1.59\\\\x_{2}=\frac{-6-\sqrt{8}}{2}=\frac{-6-2.82}{2}=-4.41

- Inequality interpretation:

Now that we already know the roots of the quadratic expression, and we can see that the parabola open upwards (positive quadratic coefficient), we can conclude that the function is less than 0 between the numbers -4.41. and -1.59

The interval notation will be:and  (-∞,-1.59) and (-4.41,∞+)

Have a nice day!

Note: I have attached a picture for better understanding.

3 0
3 years ago
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