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Lilit [14]
3 years ago
13

Alicia drew a map of Texas. In the scale Alicia used for the map, .50 inch represents 20 miles. What is the distance between two

cities on the map if the actual distance between the two cities is 360 miles?
Mathematics
2 answers:
Vika [28.1K]3 years ago
7 0

OK so dont know srry bout that

kramer3 years ago
6 0

Answer:

An actual distance of 360 miles correspond to 9 inches on the map

Step-by-step explanation:

From the question, we have a scale of 0.5 inches representing 20 miles

Now, we want to relate an actual distance of 360 miles to a measurement on the map using the scale

From here, we have that;

0.5 inches = 20 miles

x inches = 360 miles

x * 20 = 0.5 * 360

20x = 180

x = 180/20

x = 9 inches

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Surface Area of a Sphere is...

4\Pi r^2

Now...

\begin{gathered} 4\Pi r^2 \\ 4\cdot\text{ }\Pi\cdot6^2 \\ =\text{ 4}\cdot\Pi\cdot36 \\ =\text{ 144}\Pi\text{ square unit} \end{gathered}

The answer is Option C

4 0
1 year ago
I would really appreciate help with the following, along with work shown so I can understand how these were solved.
Alja [10]

First, you have to know the double angle formula:

sin 2A  =  2 sin A cos A

cos 2A  =  cos² A − sin² A  =  2 cos² A − 1  =  1 − 2 sin² A

tan 2A<span> = 2 tan </span>A<span> / (1 − tan² </span>A)


Next, find the other leg: 17^2-15^=64, √64 is 8, so the unknown leg length is 8.

sinα=15/17, cosα=8/17, tanα=15/8

sinβ=8/17, cosβ15/17, tanβ=8/15

Plug these values in the above formula, you'll have your answers.


For the half angles, know the half-angle formula:

sin(B/2) = ± √<span>(1 − cos B)/2</span>

cos(B/2) = ± √<span>(1 + cos B)/2</span>

tan(B/2)  =  (1 − cos B) / sin B<span>  =  sin </span>B<span> / (1 + cos </span>B)

refer to this website for details:

<span>https://brownmath.com/twt/double.htm
</span>


For the power reduction formula, please search for it. I tried to copy and paste here, but it wouldn't paste. 

for number 4, factor the quadratic equation into (cscx-8)(cscx+1)=0

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6 0
3 years ago
I need help again :/
Kobotan [32]

Answer:

Hola

Step-by-step explanation:

Well if this is based off the first thing I answered, then 1. C

as I told you before, every time the x axis values go up one, the y values go up by x2 (aka times 2). Therefore it’s C.

2. It is linear because the unit change (amount it goes up aka slope) is the same since it’s alway x2. Hence the line on a graph would look linear

8 0
3 years ago
Please help me on 17-18!<br> I have no clue on what to do on the problems at hand.
nika2105 [10]

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| x | = 7 is nothing more than two vertical lines, namely x=7 or x=-7, as you already wrote down.

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7 0
3 years ago
Sean wrote a number on a piece of paper.
just olya [345]
The Sean's number is x. Formulate the equation:

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Answer: the Sean's number is 12.
8 0
3 years ago
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