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BartSMP [9]
3 years ago
10

Which equation is a proportion

Mathematics
2 answers:
Valentin [98]3 years ago
3 0

Answer:

your first choice answer a

Step-by-step explanation:

alukav5142 [94]3 years ago
3 0

Answer:

5/8 = 20/32

Step-by-step explanation:

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An airplane departs airport A at a heading of 300 (N 60 W). After traveling 320 miles, the airplane adjusts its course to 350 (N
iris [78.8K]

The shortest distance between the airport A and airport B travels by airplane which departs airport A at a heading of 300 (N 60 W) is 401 miles.

<h3>What is the law of cosine?</h3>

When the two sides of and one angle is known, then to find the third side, the law of cosine is used.

It can be given as,

c^2=a^2+b^2-2ab\cos C\\a^2=c^2+b^2-2ab\cos A\\b^2=a^2+c^2-2ab\cos B

Here, a,b and c are the sides of the triangle and A,B and C are the angles of the triangle.

An airplane departs airport A at a heading of 300 (N 60 W). After traveling 320 miles, the airplane adjusts its course to 350 (N 10 W) and flies an additional 112 miles to reach airport B.

The image of this problem is attached below. In this image, the two sides 112 miles and 320 miles are shown and the angle between them is 130 degrees. Thus, the value of x is,

x=\sqrt{112^2+130^2-2(112)(130)\cos 130^o}\\x=401\rm\; miles

Hence, the shortest distance between the airport A and airport B travels by airplane which departs airport A at a heading of 300 (N 60 W) is 401 miles.

Learn more about the law of cosine here;

brainly.com/question/4372174

#SPJ1

6 0
3 years ago
2. Evaluate b^-3for b = 3.<br> •27<br> •1/9<br> •1/27<br> •-27
amm1812

Answer:

\underline{ \boxed{ \frac{1}{27} }}

Step-by-step explanation:

given \to \: b^{-3} \:  \\ if \:  b = 3. \to \\ 3^{-3}  =  \frac{1}{3 {}^{3} }  =  \underline{ \boxed{ \frac{1}{27} }}

♨Rage♨

8 0
3 years ago
Read 2 more answers
Show that only one n, n+2 and n+4 are divisible by 3
babymother [125]
N+2 divide 3 so it should be correct hope it helped
3 0
3 years ago
Your poor health causes you to miss one work day every two weeks. You do not get paid when you are out sick. You normally work 8
lisabon 2012 [21]
So you miss one day every two weeks
4 weeks in a month
2 days a month are missed
2 x 12 is 24(24 days you miss a year)
9.29 x 8 = 74.32 a day is how much you're paid.
So, if you miss 74.32 two days out of every month that'd be 148.64 because you miss two days of 74.32 and 74.32 x 2 = 148.64
12 months in a year
148.64 every month x 12 months a year

1783.68

But when I searched online, it said there is 52 weeks in a year.
If we go about the problem with 52 weeks in a year then this is the problem solution

26 days you miss
74.32 x 26

= 1932.32
5 0
4 years ago
A juice stand in Montreal sells a quart of orange juice for 4.40CAN. If 1USD = 1.06CAN and 4 cups = 1 quart, how much will one c
Arte-miy333 [17]

Answer:

A cup of juice will cost 1.04 US dollars

Step-by-step explanation:

Here, we want to know the cost of one cup of juice in US dollars.

The cost of a quart of juice is Canada is 4.40CAN

now, since there are 4 cups in a quart, the cost of a cup of juice will be 4.40/4 = 1.10 CAN

Moving on;

We are told that 1 USD = 1.06 CAN ;

thus x usd = 1.10 CAN

1 * 1.10 = x * 1.06

x = 1.10/1.06

x = 1.037 which is approximately 1.04 USD

5 0
3 years ago
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