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vaieri [72.5K]
3 years ago
11

What is the length of DE? A. 5 B.7 C.6 D.8

Mathematics
2 answers:
iragen [17]3 years ago
8 0

Answer:

The correct answers is A

Step-by-step explanation:

Mark me as brainliest and follow me

asambeis [7]3 years ago
5 0

Answer:

I think it's 5

Step-by-step explanation:

12-8=4 so 9-4=5 but I could be missing something

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Without solving the equation, determine the nature of the roots of x^2 - 2x - 8 = 0.
noname [10]

Answer:

two real, unequal  roots

Step-by-step explanation:

This is a quadratic equation.  The quadratic formula can be used to determine how many and what kind of roots may exist:  

Find the discriminant, which is defined as b^2 - 4ac, if ax^2 + bx + c = 0.  In this case, a = 1, b = -2 and c  = -8, so that the discriminant value is

(-2)^2 - 4(1)(-8), or 4 + 32  =  36.

Because the discriminant is real and positive, we know for certain that we have two real, unequal  roots

3 0
3 years ago
A biologist is researching a newly-discovered species of bacteria. At time t = 0 hours, she puts one hundred bacteria into what
ad-work [718]

Answer:

about 2283

Step-by-step explanation:

Plug 24 in for the value of t. e is its own value like pi but 2.1.........

4 0
3 years ago
Can anyone help me out with this please
musickatia [10]
First, let's factor the equation to make it easier to solve for the intercepts:

f(x) = x² + 12x + 32
f(x) = (x + 8)(x + 4)

To find the x-intercepts of a function, set the y value (f(x)) to 0:

0 = (x + 8)(x + 4)
x = -8, -4

Similarly, to find the y-intercept, set the x values to 0:

f(x) = (0 + 8)(0 + 4)
f(x) = (8)(4)
f(x) = 32

*Note that you can see 32 as the y-intercept in the parabola's original equation
4 0
3 years ago
What is the following product 3/x^2 4/x^3??
Alborosie

9514 1404 393

Answer:

  12/x^5

Step-by-step explanation:

The fractions are multiplied in the usual way. The applicable rule of exponents is ...

  (x^a)(x^b) = x^(a+b)

__

  \dfrac{3}{x^2}\cdot\dfrac{4}{x^3}=\dfrac{3\cdot4}{x^2\cdot x^3}=\dfrac{12}{x^{2+3}}=\boxed{\dfrac{12}{x^5}}

7 0
3 years ago
Write the slope-intercept form of the equation of the line described below.
prisoha [69]

The equation of the line is y=-\frac{2}{5}x-5

Explanation:

Given that the line passes through the points (-5,-3)

The slope of the line is m=-\frac{2}{5}

We need to determine the equation of the line.

<u>Equation of the line:</u>

The equation of the line can be determined using the formula,

y-y_1=m(x-x_1)

Let us substitute the points (-5,-3) and the slope m=-\frac{2}{5} in the above formula.

Thus, we have;

y+3=-\frac{2}{5}(x+5)

Simplifying, we get;

y+3=-\frac{2}{5}x-2

Subtracting 3 from both sides of the equation, we get;

y=-\frac{2}{5}x-5

Hence, the equation of the line in slope - intercept form is y=-\frac{2}{5}x-5

4 0
3 years ago
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