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Ray Of Light [21]
2 years ago
7

Find the sum of -10x^2-x+6−10x 2 −x+6 and 10x^2-510x 2 −5.

Mathematics
2 answers:
irina [24]2 years ago
8 0

Answer:

1. -10x^2-x+6-10x 2-x+6 = -10x^2 - 22x + 12

2. 10x^2-510x 2-5 = 10x^2 - 1020x - 5

Step-by-step explanation:

hope this helps

if i did something wrong let me know so i can fix my answer

#Virgo2007

Lunna [17]2 years ago
8 0

Answer:

<h2>-2x -1033</h2>

Step-by-step explanation:

(-10x^2-x+6−10x 2 −x+6) + (10x^2-510x 2 −5)

= -10x^2-2x-8+10x^2-1025

= -2x - 1033

correct me if I'm wrong

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Suppose Y varies directlly With x. If y= 6 when x=2 find x when y= 12
coldgirl [10]

Answer:

The value of x = 4 when the value of y = 12

Step-by-step explanation:

∵ y α x ⇒ it is direct variation

- It means y increase when x increase

∴ y = kx ⇒ where k is a constant

- To find the value of k we will substitute the values of x

  and y in the equation above

- If y = 6 when x = 2

∴ 6 = k(2) ⇒ divide two sides by 2

∴ k = 3

∴ y = 3x ⇒ equation of variation

- To find the value of x when y = 12

- Substitute the value of y in the equation of variation

∴ 12 = 3x ⇒ divide both sides by 3

∴ x = 4

* The value of x = 4 when the value of y = 12

4 0
3 years ago
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State all integer values of x in the interval [2, 7] that satisfy the following inequality: 3x + 4 &lt; 14​
Sati [7]

Answer:

456

Step-by-step explanation:

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7 0
3 years ago
I need help with question number 1 and question number 2 please
Ivenika [448]

1. It is a quadratic equation.

Explanation:

A quadratic equation is any equation that can be rearranged in standard form (ax^2 + bx + c). That equation can be rewritten as -x^2 + 1, where a is -1, b is 0, and c is 1.

2.  4x^2, 3x, and 5.

Explanation:

A quadratic term is ax^2 in the formula ax^2 + bx + c. A linear term is bx in the formula, and a constant is c in the formula.

4 0
3 years ago
Which is the safest way to invest money?
yan [13]

The safest way to invest money is to invest in more than one type of investment.

The reason you diversify your investments, is to spread the risk of loss among many different choices. In other words, there is safety in numbers.

7 0
4 years ago
1. A line segment has endpoints of Y(2,-3) and Z(-6,-1).
Orlov [11]

The answers will be :

a. The length of the line segment will be equal to 8.24 units.

b. The midpoint of the line segment will be ( -2 , -2 ).

c. The equation of line passing through points Y and Z will be 4y + x - 10 = 0

What is slope of a line segment ?

The ratio of the difference in y-coordinates over the equivalent x-coordinates between two different locations on a line.

It is given that a line segment has endpoints of Y(2,-3) and Z(-6,-1).

Let's solve the given parts based on the above data.

a.

The length of the line segment will be given by :

YZ = \sqrt({x_{2} - x_{1})^2 + (y_{2}- y_{1})^2}

YZ = √ [( -6 -(2)]^2 + [ -1 - (-3)]^2}

YZ = √ (-8)² + 2²)

YZ = √68

YZ = 8.24 units

b.

The midpoint (say M) of the line segment will be given by :

M = ( \frac{x_{1} + x_{2} }{2} , \frac{y_{1} + y_{2} }{2})

M = [(2-6)/2 , (-3-1)/2]

M = ( -2 , -2 )

c.

And the equation of line passing through points Y and Z will be :

y_{2} - y_{1} = m ( x_{2} - x_{1} )

Let's calculate value of slope (m) firstly which will be :

m =(y_{2} - y_{1}) / ( x_{2} - x_{1} )

m = ( -1 + 3 ) / (-6 - 2)

m = 2 / -8

m = -1 / 4

or

m = -0.25

Using the value of slope (m) : we get the equation of line as :

y - y_{1} = - 0.25 ( x - x_{1} )

or

(y + 3) = - 0.25 ( x - 2)

y + 3 = -0.25 x + 0.50

or

y + 0.25 x - 2.5 = 0

If we multiply by 4 throughout the equation ; then the equation of line can also be written as :

4y + x - 10 = 0

Therefore the answers will be :

a. The length of the line segment will be equal to 8.24 units.

b. The midpoint of the line segment will be ( -2 , -2 ).

c. The equation of line passing through points Y and Z will be 4y + x - 10 = 0

Learn more about line segment here ;

brainly.com/question/23629348

#SPJ1

5 0
1 year ago
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