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2 years ago

X+ 3(x+2) = 2 x = Answer

Mathematics

1 answer:

deff fn [24]2 years ago

4 0

Answer: x=-1
Step by step shown below:

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Can I get help with these too? Thank you!!!!!

Anastasy [175]

For ABC:

The interior angle of C is 180 - 142 = 38
The three interior angles add up to 180°
(2x - 15) + (x - 5) + 38 = 180
3x - 20 + 38 = 180
3x + 18 = 180
3x = 162
x = 54

The measure of angle ABC = x - 5 = 54 - 5 = 49

For JKL:
The interior angle of L is 180 - 100 = 80°
The 3 interior angles add up to 180°
(2x + 27) + (2x - 11) + 80 = 180
4x + 16 + 80 = 180
4x + 96 = 180
4x = 84
x = 21

The measure of angle JKL is 2x - 11 = 2(21) - 11 = 42 - 11 = 31°

7 0

3 years ago

Which ones correct?

natima [27]

Answer:

Step-by-step explanation:

y = 4 is a horizontal line which would be parallel to the x axis

6 0

3 years ago

What is the slope of the line given by the equation y = 6x

Alenkinab [10]

Answer: Slope:

y-intercept:

Step-by-step explanation:

Hope this helps!

I am joyous to assist anytime.

~Jarvis

8 0

3 years ago

Y=x^2-6x-16 in vertex form

satela [25.4K]

Answer:

$y=(x-3)^{2} -25$

Step-by-step explanation:

The standard form of a quadratic equation is $y=ax^{2} +bx+c$

The vertex form of a quadratic equation is $y=a(x-h)^{2} +k$

The vertex of a quadratic is (h,k) which is the maximum or minimum of a quadratic equation. To find the vertex of a quadratic, you can either graph the function and find the vertex, or you can find it algebraically.

To find the h-value of the vertex, you use the following equation:

$h=\frac{-b}{2a}$

In this case, our quadratic equation is $y=x^{2} -6x-16$ . Our a-value is 1, our b-value is -6, and our c-value is -16. We will only be using the a and b values. To find the h-value, we will plug in these values into the equation shown below.

$h=\frac{-b}{2a}$ ⇒ $h=\frac{-(-6)}{2(1)}=\frac{6}{2} =3$

Now, that we found our h-value, we need to find our k-value. To find the k-value, you plug in the h-value we found into the given quadratic equation which in this case is $y=x^{2} -6x-16$

$y=x^{2} -6x-16$ ⇒ $y=(3)^{2} -6(3)-16$ ⇒ $y=9-18-16$ ⇒ $y=-25$

This y-value that we just found is our k-value.

Next, we are going to set up our equation in vertex form. As a reminder, vertex form is: $y=a(x-h)^{2} +k$

a: 1

h: 3

k: -25

$y=(x-3)^{2} -25$

Hope this helps!

3 0

3 years ago

29 mint plants and 29 other herb plants at the garden center. Considering this data, how many of the next 62 herb plants stocked

spin [16.1K]

Answer: 31 mint plants

Step-by-step explanation:

We will have mint plants over total plants:

29/29+29 = 29/58 = 1/2

Now, we will multiply 62 by 1/2 to guess how many mint plants will be stocked.

62* 1/2 = 31

We should expect about 31 plants of the total plants to be mint plants.

7 0

1 year ago

X+ 3(x+2) = 2 x = Answer ​

X+ 3(x+2) = 2 x = Answer