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Llana [10]
3 years ago
14

Please help, im not feeling good

Mathematics
2 answers:
sdas [7]3 years ago
4 0

Answer:

A

Step-by-step explanation:

Sauron [17]3 years ago
3 0

Answer:

A. $4/1lb

Step-by-step explanation:

You can get the unit price of beef by looking at the graph, and the denominator is always the number on the bottom of this graph, and the numerator is always the one on the left. (Denominator is the bottom number in a fraction, numerator is the top)

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Determine what the value is to complete the square<br><br><img src="https://tex.z-dn.net/?f=%20%7B%20x%20%7D%5E%7B2%7D%20%20%2B%
prisoha [69]

I'm not entirely sure what you're looking for, but here are your options. If you need a perfect square, I'd go for the 12 and 12, but I hope this helps?

8 0
3 years ago
6. Two observers, 7220 feet apart, observe a balloonist flying overhead between them. Their measures of the
MaRussiya [10]

Answer:

The ballonist is at a height of 3579.91 ft above the ground at 3:30pm.

Step-by-step explanation:

Let's call:

h the height of the ballonist above the ground,

a the distance between the two observers,

a_1 the horizontal distance between the first observer and the ballonist

a_2 the horizontal distance between the second observer and the ballonist

\alpha _1 and \alpha _2 the angles of elevation meassured by each observer

S the area of the triangle formed with the observers and the ballonist

So, the area of a triangle is the length of its base times its height.

S=a*h (equation 1)

but we can divide the triangle in two right triangles using the height line. So the total area will be equal to the addition of each individual area.

S=S_1+S_2 (equation 2)

S_1=a_1*h

But we can write S_1 in terms of \alpha _1, like this:

\tan(\alpha _1)=\frac{h}{a_1} \\a_1=\frac{h}{\tan(\alpha _1)} \\S_1=\frac{h^{2} }{\tan(\alpha _1)}

And for S_2 will be the same:

S_2=\frac{h^{2} }{\tan(\alpha _2)}

Replacing in the equation 2:

S=\frac{h^{2} }{\tan(\alpha _1)}+\frac{h^{2} }{\tan(\alpha _2)}\\S=h^{2}*(\frac{1 }{\tan(\alpha _1)}+\frac{1}{\tan(\alpha _2)})

And replacing in the equation 1:

h^{2}*(\frac{1 }{\tan(\alpha _1)}+\frac{1}{\tan(\alpha _2)})=a*h\\h=\frac{a}{(\frac{1 }{\tan(\alpha _1)}+\frac{1}{\tan(\alpha _2)})}

So, we can replace all the known data in the last equation:

h=\frac{a}{(\frac{1 }{\tan(\alpha _1)}+\frac{1}{\tan(\alpha _2)})}\\h=\frac{7220 ft}{(\frac{1 }{\tan(35.6)}+\frac{1}{\tan(58.2)})}\\h=3579,91 ft

Then, the ballonist is at a height of 3579.91 ft above the ground at 3:30pm.

6 0
3 years ago
Someone please help.
frutty [35]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A. 46 <br> B. 72<br> C.45<br> D.36
ASHA 777 [7]

Answer: C 45

Step-by-step explanation:

7 0
2 years ago
Mary-Ann has $28, which is 2 1/3 as much money as Lona has. How much money dose Lona have?
pav-90 [236]

Answer:

12 dollars

Step-by-step explanation:

<h3>Lona should have 12 dollars because it says that it is <em>2 1/3</em> as much as Mary-Anns amount. You would divide 28➗2 1/3=12</h3><h3 /><h3>hope this helps</h3>
6 0
3 years ago
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