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Andrews [41]
3 years ago
12

Find the angles please please

Mathematics
1 answer:
IceJOKER [234]3 years ago
6 0
Angle BAC
cosφ⁻¹ = (10² + 17² - 11²)/(2*10*17) = 37.9 ≈ 38°
Angle ACB
cosφ⁻¹ = (10² + 11² - 17²)/(2*10*11) = 108.0°
Angle ABC
cosφ⁻¹ = (11² + 17² - 10²)/(2*11*17) = 34.0°
See you !
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Solve the formula for v 1 v1 . Average acceleration of an object: a= v 1 − v 0/ t<br> pls help
ziro4ka [17]

In this question , we have the formula of acceleration given, which is

a = \frac{v_{1} - v_{0}}{t}

And we have to solve for v_{0}

First we need to get rid of denominator t from right side and for that, we multiply both sides by t, that is

at = v_{1} - v_{0}

Now to solve for v1 , we need to get rid of v0, and for that , we add v0 to both sides, that is

v_{1} = at + v_{0}

And that's the required answer.

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3 years ago
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Fynjy0 [20]
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7 0
2 years ago
The system equations 2y=14-2x and y=-x+7
Artemon [7]

Answer:

Hey there!

When we are given what one of our variables is equal to, we can easily solve the system of equations via substitution, which is where we take the variable value, plug it into the other equation, and solve for the other variable.

In this case, we just take our value for y and plug it in for the value for y in the first equation and solve for x.

2(-x+7)=14-2x

-2x+14=14-2x

-2x=-2x

x=x

As we can see, there are infinitely many solutions to this first equation, which means that there is no possible way to solve for y because x has infinitely many solutions, so there are infinitely many solutions to this system of equations, because they are both the same line.

I hope this helps! :D

6 0
2 years ago
HELP
EleoNora [17]

Answer:

x = 7 & y = 8

Step-by-step explanation:

We know that

Mean = Sum of terms/Total terms

=> Mean = 4 + 6 + x + y + 10/5

=> Mean = 20 + x + y/5

Now,

Median = (n + 1)/2

=> Median = (5 + 1)/2

=> Median = 6/3

=> Median = 3rd term = x

So,

x = 20 + x + y/5

x × 5 = 20 + x + y

5x = 20 + x + y

5x - x = 20 + y

4x = 20 + y

Since x and y are in order so,

Possible outcomes will be 7,8 & 9

(7,8) & (8,9) & (7,9)

Taking x = 7 and y = 8

4(7) = 20 + 8

28 = 28

Hence,

x = 7 and y = 8

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2 years ago
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Four hundred-thousand plus sixty-thousand plus five-thousand plus one-hundred.

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