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2 years ago

Help help help help help math

Mathematics

1 answer:

almond37 [142]2 years ago

7 0

Step-by-step explanation:

don't panic. just breathe and think logically.

why would these angles be different ? how could they be different ?

right : they cannot be different. otherwise the 2 horizontal lines would not be parallel.

so, yes, indeed, these 2 angles are identical.

3x + 2 = 2x + 6

x = 4

that's it.

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Solve the system 4x + 2y = 10 x = y + 13

Maslowich

Answer:

$x = 6$

$y = -7$

Step-by-step explanation:

We have the system of equations:

$4x+2y=10\\x=y+13$

Let's solve by substituting. We know that $x=y+13$ , so we can substitute $y+13$ in as $x$ in the equation $4x+2y=10$ .

$4(y+13) + 2y = 10$

Simplify this down so that we have $y$ on one side of the equation:

$4y + 52 + 2y = 10\\\\6y + 52 = 10\\\\6y = -42\\\\y = -7$

Now that we know the value of $y$ , we can substitute it in to the equation $x = y+13$ to find $x$ .

$x = -7+13\\\\x = 6$

Hope this helped!

3 0

3 years ago

Read 2 more answers

Solve the following triangle for all missing sides and angles.

AlekseyPX

Answer:

Part 1: 100

Part 2: 29.19 (Rounded)

Part 3: 20.96 (Rounded)

Step-by-step explanation:

Part 1: Triangle Sum Theorem (All angles of a triangle add up to 180 degrees)

45 + 35 + A = 180

80 + A = 180

Move the constant to the other side

80 + A = 180

-80 -80

A = 80°

Part 2: Law of sines

$\frac{a}{sin(100)} = \frac{17}{sin(35)}$

Cross multiplication

sin(35)a = 16.7417318

Divide both sides by sin(35)

a = 29.18831866

Part 3: Law of cosines

$b=29.19^{2}+17^{2}-2*29.19*17*cos(45)$ = 439.2809039

Square root the answer

$\sqrt{439.2809039}$ =20.95902917

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3 years ago

I need help for these problems!!! Thanks!

Triss [41]

I do before but your questions a bit wired seems like they already help u solve ?

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4 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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True or false. Y(y +4) -y squared =6. Is a quadratic equation

Fiesta28 [93]

no it is not a quadratic equation

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3 years ago