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taurus [48]
3 years ago
10

In triangle ABC, b = 600, ∠B = 11°, and ∠C = 75°. Find a.​

Mathematics
1 answer:
vodomira [7]3 years ago
8 0

Answer:

Step-by-step explanation:

We could use the Law of Sines if we only knew what angle A was. It just so happens that by the Triangle Angle-Sum Theorem, angle A is equal to

180 - B - C. Therefore,

angle A = 180 - 11 - 75 so

angle A = 94. And the Law of Sines is

\frac{sin94}{a}=\frac{sin11}{600} and cross multiply to get

600sin94 = asin11 and solve for a:

a=\frac{600sin94}{sin11} gives you that

a = 3136.85

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I need help on this, if anyone knows how to do this can you help me out pls
ASHA 777 [7]
<h3>Answer:  (3, 0)</h3>

=================================================

Explanation:

Let's isolate x in the first equation.

x-2y = 3

x = 3+2y

Then we'll plug this into the second equation

Afterwards, solve for y.

2x + 4y = 6

2(3+2y)+4y = 6

6+4y+4y = 6

8y+6 = 6

8y = 6-6

8y = 0

y = 0/8

y = 0

Use this to find x.

x = 3+2y

x = 3+2(0)

x = 3

The solution is therefore (x,y) = (3, 0)

If you were to graph both lines, then they would intersect at the location (3,0).

-----------------------------

Checking the answer:

Plug x = 3 and y = 0 into the first equation.

x-2y = 3

3-2(0) = 3

3 - 0 = 3

3 = 3 that works

Repeat for the other equation

2x+4y = 6

2(3) + 4(0) = 6

6 + 0 = 6

6 = 6 that works as well

Both equations are true when (x,y) = (3,0).

The solution is confirmed.

6 0
2 years ago
Question 1
zhannawk [14.2K]

The applications that will involve percentages include:

  • Sales Tax
  • Original Sale Price
  • Commission
  • Income Tax

<h3>Which applications involve percentages?</h3>

Sales tax will involve percentage because the sales tax percentage will be needed to calculate the sales tax. The same goes for the income tax.

Commissions also involve percentages as the commission is a percentage of sales. The original sales price can only be acquired by using the discount or markup percentage applied to it to get the current sales price.

Find out examples of commission percentages at brainly.com/question/24951536.

6 0
2 years ago
A) A square has an area of 64 cm?
kolbaska11 [484]

Answer:

perimeter of square =34cm

Step-by-step explanation:

its 64..area

normally we find area by calculating side ×side

so 8×8

=64

  • so its 34cm....
7 0
3 years ago
Benjamin started her walk from the front door of her ground floor apartment. She walked 6 meters to the corner of the building a
notsponge [240]

Answer:

<u>4 meters.</u> 

Step-by-step explanation:

Benjamin has walked two legs of a right triangle, so you can connect her two movements with a line if you were sketching the situation.. The displacement is the objects overall change in position in relation to its origin, so in your case, Benjamin's apartment. While the total distance adds up regardless of her position. 

So, the total distance Benjamin walked is 10m + 6m = 16m 

Her displacement can be found by your best friends, the Pythagorean Theorem: 10m ^2 + 6m ^2 = delta x^2 (or displacement squared).. giving you a displacement of 11.66, or 12 m.

The difference between the distance she walked and her displacement is 4 meters. 

I hope this helps. If you have any more questions, please feel free to post them and someone will be able to help you, whether it's myself or others. Please leave a like, rating, and if possible, Brainliest. Have a great day!    

6 0
3 years ago
Lewis needs 1/8 quart of paint to cover 10 square yards. How many square yards can he paint with 4 quarts of paint?
nalin [4]

Answer:

Lewis can paint 320 square yards.

Step-by-step explanation:

1 quart covers 80 square yards

8 x 10=80

4 quarts covers 320 square yards

80 x 4=320

4 0
3 years ago
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