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Crazy boy [7]
4 years ago
10

How to find the measure of angles?

Mathematics
1 answer:
nevsk [136]4 years ago
7 0

Answer:

The best way to measure an angle is to use a protractor. To do this, you'll start by lining up one ray along the 0-degree line on the protractor. Then, line up the vertex with the midpoint of the protractor. Follow the second ray to determine the angle's measurement to the nearest degree.

Step-by-step explanation:

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Use elimination to solve the system 3x+5y=16 and 8x-y=28 for x?
Mekhanik [1.2K]

Answer:

x = 156/43

Step-by-step explanation:

3x + 5y = 16

8x - y = 28

3x + 5y = 16

5(8x - y = 28)

3x + 5y = 16

40x - 5y = 140

43x = 156

x = 156/43

*sigh, an ugly answer*

5 0
3 years ago
An item is priced at $14.14. If the sales tax is 4%, what does the item cost including sales tax?
fenix001 [56]

Answer:

28.85

Step-by-step explanation:

..... ....

......

8 0
3 years ago
Find the distance between the points.<br> (-1, 1), (3, -2)
Citrus2011 [14]
Answer:

Distance = 5

Step-by-step explanation:

√[(x₂ - x₁)² + (y₂ - y₁)²]

√[(3 - (-1))² + (-2 - 1)²]

√[4² + -3²]

√[16 + 9]

√25

5
4 0
3 years ago
Please help thank you!
Vesna [10]

Answer:

2

Step-by-step explanation:

X^2+Y^2=4=2^2

6 0
3 years ago
Pasta comes with tomato sauce and can be ordered with​ some, all, or none of these ingredients in the​ sauce: {onions,​ garlic,
klio [65]

Answer: Hello!

So the list of ingredients in the sauce are:

{onions,​ garlic, carrots,​ broccoli, shrimp,​ mushrooms, zucchini, green​ pepper}

there are 8 possible elements in the sauce, so we need to see the combinations for this elements in the sauce.

let's count!

0 ingredients; there is only one combination with 0 ingredients.

1 ingredient: there are 8 combinations with 1 ingredient, one for each.

2 ingredients: now star playing with combinatorics, so the combinatory between A and B is: \frac{A!}{B!(A-B)!}, so for 8 and 2 we get:

\frac{8!}{2!(6)!} = 8*7/2 = 28

3 ingredients: Similar as before; the combinatory for 8 and 3 is: \frac{8!}{3!*5!} = 8*7 =56

4 ingredients: for 8 and 4 we have: \frac{8!}{4!*4!} = \frac{8*7*6*5}{4*3*2} = 2*7*5 = 70

5 ingredients: You can think that now we are counting the combinations of 3 ingredients that we are not using, so the combinations are the same as for 3 ingredients: 56

6 ingredients: Similar as before, here are the combinations of the two ingredients that we are not using: 28

7 ingredients: there are 8 options if we decide to not use only one ingredient.

8 ingredient: there is 1 option in this case, same as the case with no ingredients

And now, we need to add all those combinations:

so C = 1 +8 +  28 + 56+ 70+ 55 + 28 +8 +1 = 512 total combinations.

3 0
4 years ago
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