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3 years ago

12 and 13? I need help please!

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

4 0

I think 12 might be the second one, I'm not sure though!

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Please help.<br><br> For math class

AleksAgata [21]

Answer:

x = 30, z = 45, y = 105

Step-by-step explanation:

The lines are straight, so:

x = 30

z = 45

y = 180 - (45 + 30)

So there

6 0

3 years ago

4x-2y = 2<br> 3x-2y=-19<br> Help

Anon25 [30]

Answer:

{x,y}={21,41}

Step-by-step explanation:

Step by Step Solution:

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System of Linear Equations entered :

[1] 4x - 2y = 2

[2] 3x - 2y = -19

Graphic Representation of the Equations :

-2y + 4x = 2 -2y + 3x = -19

Solve by Substitution :

// Solve equation [2] for the variable x

[2] 3x = 2y - 19

[2] x = 2y/3 - 19/3

// Plug this in for variable x in equation [1]

[1] 4•(2y/3-19/3) - 2y = 2

[1] 2y/3 = 82/3

[1] 2y = 82

// Solve equation [1] for the variable y

[1] 2y = 82

[1] y = 41

// By now we know this much :

x = 2y/3-19/3

y = 41

// Use the y value to solve for x

x = (2/3)(41)-19/3 = 21

Solution :

{x,y} = {21,41}

6 0

3 years ago

Read 2 more answers

Which polygon is always irregular

zvonat [6]

Pentagons and hexagons can be irregular.

Anything that does not have congruent sides is irregular.

Hope that helped :))

9 0

3 years ago

Consider the polynomial P(x)=x³+kx²+x+6.Find the value of k so that x+1 is a factor of P.

sergiy2304 [10]

Answer:

The value of k will be -4

Step-by-step explanation:

We have given polynomial $P(X)=x^3+kx^2+x+6$

It is given that x+1 is factor of the polynomial

And we have to find the value of k

As x+1 is the factor of polynomial so x+1 = 0 that is x = -1 will be the root of polynomial

So if we put x = -1 in the polynomial then the p(-1) will be zero

So $0=(-1)^3+k(-1)^2-1+6$

$k=-4$

So the value of k will be -4

4 0

3 years ago

YALL NEVER ANSWER AH POOP plz help

lakkis [162]

Answer:

The given point A (6,13) lies on the equation. True

The given point B(21,33) lies on the equation. True

The given point C (99, 137) lies on the equation. True

Step-by-step explanation:

Here, the given equation is : $y =\frac{4}{3} x + 5$

Now,check the given equation for the given points.

1) A (6,13)

Substitute x = 6 in the given equation $y =\frac{4}{3} x + 5$

$y =\frac{4}{3} (6) + 5 = 4(2) + 5 = 8 + 5 = 13$

⇒ y= 13

Hence, the given point A (6,13) lies on the equation.

2) B (21,33)

Substitute x = 21 in the given equation $y =\frac{4}{3} x + 5$

$y =\frac{4}{3} (21) + 5 = 4(7) + 5 = 28 + 5 = 33$

⇒ y = 33

Hence, the given point B(21,33) lies on the equation.

3) C (99, 137)

Substitute x = 99 in the given equation $y =\frac{4}{3} x + 5$

$y =\frac{4}{3} (99) + 5 = 4(33) + 5 = 132 + 5 = 137$

⇒ y = 137

Hence, the given point C (99, 137) lies on the equation.

7 0

3 years ago

Read 2 more answers