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2 years ago

Please Help Me !!! Its A Math Question !!What is the domain of the quadratic equation that contains the following points?

Mathematics

1 answer:

Nataly [62]2 years ago

6 0

Answer:

(-infinity, inifinty)

Step-by-step explanation:

the domain should be all real numbers of this quadratic

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4a²-ab-3b²<br>solve this

Ainat [17]

Answer: (4a+3b)(a−b)

Step-by-step explanation:

Factor by grouping

7 0

1 year ago

PLEASEEEEEEEE HELP

Rama09 [41]

Answer:

Using the point-slope form:

The equation of the line is given by:

$y-y_1 =m(x-x_1)$ .....[1] where

m is the slope of the line and $(x_1, y_1)$ is the point on the line.

As per the statement:

Given: Two points i,e (34, 76) and (42, 91)

First calculate slope(m):

Slope is given by:

$\text{Slope} = \frac{y_2-y_1}{x_2-x_1}$

Substitute the given values we have;

$\text{Slope (m)} = \frac{91-76}{42-34}=\frac{15}{8}=1.875$

Now, substitute the value of m and (34, 76) in [1] we have;

$y-76 =1.875(x-34)$

Using distributive property: $a \cdot (b+c) = a\cdot b+ a\cdot c$

$y-76 =1.875x-63.75$

Add 76 to both sides we get;

$y=1.875x+76$

Therefore, the equation of the trend line is: $y=1.875x+76$

8 0

3 years ago

Read 2 more answers

Rationalize the denominator of square root of negative 9 over open parentheses 4 minus 7 i close parentheses minus open parenthe

Deffense [45]

A calculator shows
$\dfrac{\sqrt{-9}}{(4-7i)-(6-6i)}=\dfrac{3i}{-2-i}=-3\cdot\dfrac{i(2-i)}{2^2+1^2}\\\\=\dfrac{-3-6i}{5}$

8 0

3 years ago

Please help The perimeter of a rectangular shape electronic keyboard is 14 ft. Its width is 3 ft longer than its depth

kipiarov [429]

Answer:

Width = 6ft Area = 54 sq ft

Step-by-step explanation:

First, re-read the problem until you understand it and can put it into your own words. I re-wrote it like this: "Find the area of a rectangle by first finding the length (L) and the width (W)." [note that I added "find L and W," but that is how I'm going to solve the problem; I could also have said that we will need the formulas, P=2L+2W and A=LW, but you knew that already, right?).

Translate the problem:

"The length of a rectangle is 3 ft longer than its width" means

L = 3 + W (eq1)

"the perimeter of the rectangle is 30 ft" means

P = 30 (eq2)

So, now the math is easy, just find L and W so we can compute the area:

P = 30 = 2L + 2W (eq3; from eq2 and the formula for P)

30 = 2(3+W) + 2W (use eq1 to substitute for L)

30 = 6 + 2W + 2W (distribute)

30 = 6 + 4W (collect terms)

24 = 4W (subtract 6 from both sides)

6 ft = W (divide both sides by 4)

Use the easiest equation (either eq1 or else eq3) to find L:

L = 3 + W (eq1)

L = 3 + 6

L = 9 ft

What is the area (A)?

A = L*W

A = (9 ft)*(6 ft)

A = 54 sq ft

3 0

3 years ago

A person washers c cars and earns a total of d dollars

Paha777 [63]

Answer:

because of his big work that hes doing and because he earns it

Step-by-step explanation:

3 0

3 years ago