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natka813 [3]
3 years ago
12

Solve this equation 3x^2 − 16x = x^2 − 30

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
3 0

3x^2-16x=x^2-30

-x^2        -x^2

2x^2-16x=-30

+30          +30

2x^2-16x+30=0

2x-6=0 or x-5=0

x=3    or x=5

A. 3,5

If you need an explanation, I can provide one. Hope it helped! If it didn't tell me what went wrong or what confused you.

vitfil [10]3 years ago
3 0

Answer:

Step-by-step explanation:

2x^2-16x+30=0

x^2 -8x+15=0

(x-3)(x-5)=0

x=3, x=5

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Can you make the answer clearer. I would be glad to help you. I just don't understand where it says "the sum of three numbers is 16 the sum of twice the first number"
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Answer:

EF = 6m.

Step-by-step explanation:

Given that:

1) All the edges of the pyramid in the model have length 12m.

So, AB = 12m

2) E is the middle of AT, F is the middle of BT

So, EF is a line segment connecting the midpoints of ΔATB

So, by applying The Triangle Mid-segment Theorem

EF // AB and EF = 0.5 AB

So, EF = 0.5 AB = 0.5 * 12 = 6m

====================================

The Triangle Mid-segment Theorem:

The line segment connecting the midpoints of any two sides of a triangle has the following properties:

1) The line segment will be parallel to the third side.

2) The length of the line segment will be a half of the length of the third side.

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The table represents some points on the graph of a linear function.
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3 0
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I need help what’s the answer to this it also needs to be evaluated and work shown u don’t understand -(-2)
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Answer:

+2

Step-by-step explanation:

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5 0
3 years ago
(-3, 6) & m = -¹/2 what’s this equation in point slope form
Gre4nikov [31]

The equation of the line in point-slope form is <u>y - 6 = (-1/2)(x - (-3))</u> which can be simplified as <u>x + 2y = 9</u>.

The equation of a line that has a slope m, and passes through the point (x₁, y₁) is given by the point-slope form of a line, which can be shown as:

(y - y₁) = m(x - x₁).

In the question, we are asked to find the equation of the line in point-slope form, that passes through the point (-3, 6) and has a slope m = -1/2.

We know that the equation of a line that has a slope m, and passes through the point (x₁, y₁) is given by the point-slope form of a line, which can be shown as:

(y - y₁) = m(x - x₁).

Taking (x₁, y₁) as (-3, 6) and m = -1/2, in the point-slope form, we get the equation of the line as;

y - 6 = (-1/2)(x - (-3)).

This can be simplified as:

2y - 12 = - x - 3,

or, x + 2y = 9.

Thus, the equation of the line in point-slope form is <u>y - 6 = (-1/2)(x - (-3))</u> which can be simplified as <u>x + 2y = 9</u>.

Learn more about the point-slope form at

brainly.com/question/11624671

#SPJ9

4 0
1 year ago
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