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Eva8 [605]
3 years ago
11

HELP PLEASE!! URGENT!!

Mathematics
1 answer:
Ugo [173]3 years ago
5 0

Answer:

Step-by-step explanation:

You can answer this using the law of cosines:

c^2=a^2+b^2-2ab \cos{c}

c^2 is equal to 4^2 + 7^2 - 2(4)(7)(cos 102º)

= 16 + 49 - 56(cos 102º)

c^2 ~ 76.64 --> c ~ 8.8

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um fazendeiro comprou a mesma quantidade de bezerros e vacas por 476.000. pagou 800 por um bezerro e 2000 por uma vaca,quantos a
marshall27 [118]

Answer:

  • <u>The farmer bought 170 animals of each species</u>.

Step-by-step explanation:

The translation of the question into English is:

<em>"a farmer bought the same number of calves and cows for 476,000. He/she paid 800 for a calf and 2000 for a cow, how many animals of each species did he/she buy?"</em>

<em />

<h2>Solution to the problem</h2>

<u>1. Choose the variable's name and translate the verbal statements into algebraic expressions:</u>

  • a) number of calves or cows: x
  • b) He/she paid 800 for a calf: 800x
  • c) He/she paid 2,000 for a cow: 2000x
  • d) For 476,00: 800x + 2000x = 476,000 . . . .  this is your equation

<u />

<u>2. Solve the equation:</u>

<u>a) Write the equation:</u>

    800x+2,000x=476,000

<u>b) Add like terms:</u>

    2,800x=476,000

<u>c) Use division property of equalities: divide both sides by 800:</u>

    x=476,000/2,800=170

<u>d) Translate the solution into a verbal statement:</u>

Since x represents both the number of calves and the number of cows, the answer is:

  • <u>The farmer bought 170 animals of each species</u>.
6 0
3 years ago
H E L P I M S L O W ! ! !
Nana76 [90]

Answer:

Reflection across the x-axis

Step-by-step explanation:

The points are the same, just opposite of one another. The image looks as if it is a reflection. Think of the x-axis like a puddle and the shape looking into it; try to picture the image seeing its reflection to help.

6 0
3 years ago
Read 2 more answers
Camille is starting an exercise program. During the first week, she walked 3/4 mile every day. Every week she increased the dist
Oksanka [162]

Answer:

E

Step-by-step explanation:

Distance = 1/3(week -1) + ¾

= 1/3(7) + ¾

= 7/3 + 3/4

= 28/12 + 9/12

= 37/12 miles

4 0
3 years ago
Read 2 more answers
4=2/7x please awnser
n200080 [17]
4=2/7x
(7)4=2/7x(7)
28=2x
— —
2. 2
14=x

x=14
3 0
3 years ago
Can a system of two linear equations have exactly two solutions?
Elenna [48]
Most linear systems you will encounter will have exactly one solution. However, it is possible that there are no solutions, or infinitely many. (It is not possible that there are exactly two solutions.) The word unique in this context means there is a solution, and it's the only one.

Hope this helps.
3 0
3 years ago
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